Monday, October 22, 2012

Mini Digital Camera

If you are constantly on the move and love to travel, then your best travel companion can be a mini digital camera. With its unique and easy to use features and its small and unique size, a mini digital camera is the most sought after thing in the present world for travelers and photographers. You don't have to be a professional photographer to make use of this ultra compact camera. On the contrary, the enhanced resolution of the small sized camera can make you an extraordinary photographer by improving the quality of even the ordinary photographed items. While searching for a mini digital camera, there are a few features that you must make sure is present in the one you are purchasing.
Basic Features of Mini Digital Camera
Give due attention to the megapixel rating. This rating helps you to determine the amount of information that is stored with each and every photograph that you take. Megapixel rating is dependent on the resolution of the photograph that you take. Mini digital cameras may have a higher megapixel that can store more information. It also produces superior quality enlargements. Usually a minimum of 3 megapixels will suit your camera since most of the pictures taken are within 4X6.
Battery usage is another consideration to be made before purchasing a mini digital camera. Usually the bad cameras offer around 50 shots with a set of batteries. But make sure that your enhanced mini digital camera provides you with around 400-500 shots per set of battery. Also it is beneficial to use AA batteries since they are rechargeable and can be used for a longer duration of time. The AA batteries for a mini digital camera are economic in the long run.
It is best to select a mini digital camera that is fast. Time is taken by a digital camera to process an image after the pressing of the shutter. This time gap in between varies from camera to camera. There are some cameras that have a time gap of around 5 seconds where you have to wait for that long to take the second snap. Time can even be consumed by what is known as the shutter lag which is the time required for the autofocus mechanism to terminate and then trip the shutter to commence. Thus, while selecting your mini digital camera, make sure that it is really fast.
Another feature that you will have to keep in mind while buying a mini digital camera is the flexible optical zoom rate. Usually it is the zoom rate of 5X - 10X that provides you with better zoom in and also provides you with the necessary close-up shots.
There are a number of things that you can do with the help of your mini digital camera, all of which the film cameras will not allow you to do. In order to get the scanned images from the film cameras, you need to wait for the film to be processed and have to pay extra amount for this procedure. But with a digital camera, apart from being able to view it on the LCD screen immediately, all you need to do to scan the photographs is to store them on a reusable media chip. You can easily upload the photographs in your PC and edit them according to your own liking. You can print them anytime you want to with the help of a printer and store them easily in CDs and hard drive.
The mini digital cameras come with a built in LCD screen. It helps you to frame the shot before you click and view the picture immediately after you have clicked. Most of them are supplied with built in autofocus. Make sure that the autofocus mechanism is fast. If you are opting for a zoom factor of 10X and above for your mini digital camera, make sure that it has image stabilization to dismiss the shaking effect that can be caused during taking the pictures. Mini Digital cameras beautifully frames the moments of joy with the least effort.

What are the Latest Advances in Digital Camera PDAs?

In recent years, PDAs (Personal Digital Assistants) have become increasingly available and more popular. There is now a wide range of products that come under this category, including devices that serve as little more than a glorified calendar and organizer, to top of the range tablets and "Palm PC's". Miniaturization has taken leaps and bounds as developments have progressed, and PDAs continue to grow more powerful. For some people, a PDA is something of a hobby, and the features, gimmicks, and novelties, whether they use them or not, are the most important part of the fun. More often, however, they are put to use in business, across almost every modern industry, at nearly every level, to varying degrees. PDAs now feature massive amounts of storage space, whether on-board, or via flash cards which keep growing in size, wireless networking, web browsing facilities, telephone-PDA hybrids, and ever more advanced software. One other feature that has raised some attention is the integration of digital cameras into Palm PCs.
Digital camera PDAs are not really intended for photography enthusiasts. They are intended more for people who depend upon and always carry their PDA. Integrating a camera into these versatile systems has so far been a matter of convenience and entertainment. The digital cameras combined with modern PDAs do not have particularly advanced camera features, and tend to be relatively poor in quality compared to a separately purchased digital camera. While a $200 digital camera may produce photographs at as high a resolution as 5, 6, or 7 "mega-pixels", the cameras found aboard a similarly priced PDA will be less than half a mega-pixel, and even more expensive PDAs rarely boast a camera with a resolution as high as 2MP. Digital camera PDAs are not just a trivial toy, though, and have many useful applications. And of course, no-one ever knows just when they might need a camera.
The Hewlett Packard HW6515 iPAQ is a fully featured PDA featuring a 1.3MP camera, with an LED flash. PDA cameras often use a high powered LED rather than a conventional strobe because they use significantly less power. Unfortunately the intensity of the flash is also much lower, but using an LED is the most efficient tool for the job. In addition to its camera, the 6515 has a 312MHz Intel CPU, 320x240 TFT display, and 128 MB of on-board memory, of which, 55MB is available for to the user. It is Bluetooth enabled and has all common digital cell network compatibility (GPRS, GSM, EDGE.) Data cable is USB, and it uses Secure Digital removable media. It comes with a very full bundle of Microsoft mobile software, and runs the Microsoft Windows Mobile 2003 (Phone Edition) Operating System. Weighing in at 5 ounces, it will set you back a little under $700.
If you are more interested in the camera capabilities themselves, then you will want to consider external cameras designed to be used in conjunction with an existing PDA. These offer much better camera quality, resulting in better image reproduction. Another 1.3MP PDA camera is the Lifeview Flycam. This small digital camera plugs into your existing PDA by way of the CF card attached to it. This is inserted directly into the CF slot of your tablet or PDA, and you have almost immediate camera functionality. It offers a few more features as a camera, and it is the camera aspect itself that is important to you, it makes a lot more sense to buy your PDA camera and PDA separately. As better PDA cameras are developed, you will be able to upgrade the camera without having to replace the whole PDA, which - as can be seen by the above example - can be quite an investment. The Flycam retails for as little as $130, making it a very appealing way to retrofit a camera to your PDA.
The HP Jornada is another retro-fitted PDA camera, also installed by way of an attached CF card. At a maximum resolution of only 640x480 (0.3MP), this camera retails for about $60. If you have an existing PDA, and have no desire to upgrade it yet, and you only need a simple camera, then this could well be the option for you. With an auto-focusing lens, this is a very easy camera to use, however, it will not appeal to more astute photographers. If all you want is to be able to take pictures of your friends whenever you want, then this is a great purchase.
Choosing a PDA camera is a matter of weighing up what you need. If you mostly just need a good camera, you are best off buying a normal digital camera, completely independent of your PDA. If it's a PDA-camera hybrid you need, along with all the other functionality of a top shelf palmtop, and you can afford the considerable outlay, but you don't need absolutely top notch photography, then consider an integrated option. If the idea of being able to swap the camera between different PDAs, and you like having the option of progressively upgrading as newer and better technology comes out, then you may wish to consider one of the retro-fitting options. They're an ingenious solution that promises to stay within budget, and allows you to upgrade at will.

The Digital Camera Dilemma, Do I Have To Buy A New Digital Camera Every Six Months?

It seems that every month, if not every week, competing manufacturers are coming up with the newest digital cameras to tempt likely customers. And it's just not working for us.
After spending a large amount of time at the mall determining which is the pre-eminent digital camera for us, we at last possess sufficient funds to buy for that huge 7 mega pixel, 12x digital zoom, portable, sweet colored, up to 600MB expandable memory of wonderful hi-speed SD memory array and not to forget, extremely lightweight.
We march to the mall armed with our life savings and lots of dignity in ourselves, when we pass by a new exhibit, an eight mega pixel, up to 1G expandable memory, with built it mic and stereo envelop, video playback enabled, with 22 picturesque modes camera. And we sigh because the manufacturer of this astounding device claims that this is the amazing digital camera yet out in the store.
And so, as we desire to own the finest, armed with our life savings and a few credit cards, we buy the best digital camera. But then again, that doesn't last too long, after two months or so, there's another "best digital camera". It confuses us. What makes a digital camera, the pre-eminent digital camera? Well, there are predetermined factors to contemplate when looking for the "best digital camera" for us.
One of the most significant features of a digital camera to make it into the finest digital camera class is its mega pixel effects. The higher the mega pixels the superior the real picture will come out. A mega pixel is tantamount to one million pixels. The resolution of your portrait is based upon the mega pixel property of your camera. This means that as you magnify the photograph, you would get more detail and less blurry colors.
The superior digital camera will often have a big LCD to help you structure your theme without having to squint into the viewfinder. This is also useful when reviewing your images, some cameras allow touch up and editing features with its LCD. A 1.5-inch display is norm, a 2-inch LCD display is satisfactory, but the pre-eminent LCD magnitude would be 2.5 inches or higher.
Most digital cameras possess both digital and optical zoom. A higher optical zoom is usually superior to a higher digital zoom. Digital cameras are customarily furnished with optical zoom of between 3x to 10x. The better the optical zoom, the higher it climbs up to the unsurpassed digital camera variety.
Always make certain that your memory card is the correct one for your digital camera. There are disparate types of memory cards comparable the xD, SD, Flash card and the likes. And these types of memory cards go with fixed types of digital cameras. Of course memory storage is also up there in choosing the finest digital cameras. Select the magnitude of memory that you demand, if you're a picture junkie, you may want more than 32MB. Memory cards can go up to 1G.
The key point to uncovering the finest digital camera is to discover one that will best fit you and your lifestyle. Don't just buy the current favorite or the one that claims they are the best digital camera out in the market. You wouldn't wish to buy a DSLR and use it with your residence activities or household outing and have to lug it around?!
Or you don't want to buy the current point and flash camera when you're serious about being a seasoned paparazzo. Of course, you can use this for starters, but if you're not a amateur lensman anymore, you wouldn't crave to get this type of camera. In reality, the best digital camera is the one that you will most likely appreciate and use. Not the kind that you'll just leave in its box after a few weeks of usage.

Sunday, October 21, 2012

Digital Camera Reviews and Ratings De-Mystify the Choices

Shopping for a new digital camera can be quite frustrating with the hundreds of choices available. Digital camera reviews clarify this confusion by comparing camera features and options, then rating how each camera compares with similar models.
An effective comparison of best digital cameras requires two things: 1) the camera's specs and features, and 2) performance ratings. Spec sheets and ratings are plentiful, but to efficiently compare digital cameras it's important to set some guidelines.
Decide on how the camera will be used, the quality and size of final prints, and necessary features. Write these down and rank camera reviews and ratings against these standards. Whether looking for a professional or snapshot camera, scan the reviews and narrow your choices down to a few cameras before making final comparisons.
OK, Lets Cut to the Chase...
Re-visit the reviews for this short list and evaluate the digital camera ratings in more depth for the following criteria:
Design, Construction and Controls
Minor design differences can become significant in daily camera use. Carefully compare how each camera's review is rated for design elements. Size and weight, body configuration, plus location of buttons, knobs and other controls can make a camera a joy to use or a real pain in the neck.
Evaluate how well the camera is put together. Are access doors for battery, memory, etc. solid and stable? What does the reviewer say about the shutter release, zoom and other buttons and knobs? How many photos will a fully charged battery take? Is the LCD bright and clear in both low light and sunny conditions?
The reviewer's evaluation of the camera's controls is critical. Can manual adjustments be made for different lighting conditions? How about auto-focus zones and exposure modes? Are controls simple and intuitive, or complicated menus?
Sensors, Pixels and Processors
These are the heart of a digital camera and determine photo quality, so closely compare how the reviewer rates them.
Generally larger sensors have more powerful and efficient photodiodes, and will produce higher quality photo images. Both CCD and CMOS sensor technology is advancing rapidly, but with each new development there are usually draw-backs, so compare carefully.
Digital camera marketing would have us believe it's all about more megapixels. But it's more complicated than that. Evaluate how each camera's review rates pixel quality, not just quantity. Some cameras will actually take better pictures with fewer pixels.
What the camera's processor does with the data collected from the sensor's diodes is equally important. It must properly interpret color balance and interpolate pixels for sharp natural looking pictures. It must be able to do it quickly or you'll have to wait too long between shots.
Lens Optics
In many ways lenses for digital cameras are simpler and less expensive than for conventional 35mm cameras. Even so, sensors and processors can't produce a better photo than what's visible through the lens. Compare the ratings because cheap lenses can distort images and colors.
In conclusion, decide on camera basics and budget range, scan enough reviews to pick a handful of finalists, then scrutinize the reviews and ratings on those cameras to find the perfect choice.

The Benefits of Underwater Digital Cameras

Underwater digital cameras are fun and easy to use under the water and great above the water as well. Use your underwater digital camera in all kinds of weather, for many activities and in a variety of locations that could be either wet or wild.
Are underwater digital cameras better than the film underwater cameras? It's up to you to decide. The digital camera cannot run out of film. It has the ability to delete bad shots or change to a lower resolution if you need extra shots.
They have better (up to 4 times) depth of field. This is also great for wide-angle photography in low light conditions. Shooting with film at f4 would typically produce fuzzy backgrounds and edges. The same scene shot in digital will give you sharp photos
When using a strobe, most film cameras are limited to shutter speeds of 1/60th - 1/250th of a second. The new consumer digital cameras don't have mechanical shutters and will sync at speeds up to 1/800th of a second. Therefore, you can shoot in bright shallow water where high f-stops would make strobes ineffective. Higher shutter speed options allow you to keep your f-stop at a better setting. These high shutter speeds are also great for freezing light rays and fast action.
35mm zoom lenses don't do well underwater. They are bad at close-focus. The built-in lens in the new digital systems offer a large zoom range with minimum focus ability to 8 inches or less. So if you had a new digital camera and a high quality aspheric housing port, you could take a 100degree wide-angle shot and zoom into 1:3 macro shot without changing lenses. Who likes to change lenses all the time?
Underwater digital cameras are small and lightweight, and the quality is comparable to film if you go for the higher resolution shots. Scans and digital camera images require a small amount of sharpening in Adobe PhotoShop®. Just apply the ""unsharp mask"" filter for an instant improvement.
Underwater digital cameras are not perfect, however and like video, the cameras have a tough time with high contrast scenes. Also, it's fairly expensive to transfer your digital files to slides if you are interested in having your images presented in slide shows. However, most digital cameras allow you to plug directly into a television for image display. And there are digital projectors on the market that produce brilliant images and even professional presentations complete with audio tracks.
Unfortunately the underwater digital camera has not fixed the one worst digital camera problem: when you press the shutter release, the camera will not immediately take the picture. This shutter delay could be a problem--fish swim fast.
If you're just starting with underwater photography, it would probably be best to purchase a digital underwater camera instead of a film underwater camera. The instant feedback of digital imaging will take years off your learning curve. With the 5 megapixel cameras, print qualities are great.
Regardless of your photo experience, think about your goals with underwater imaging. Shooters looking for instant results, quick web posts and prints of 11 in. x 14 in. and smaller will be thrilled with digital. Digital is probably the best solution for all new shooters that are comfortable with computers. Instant feedback is always great.
If you are still not sure, however, try out the equipment before you buy it. Take a class with demo gear and instruction. Then buy something wonderful and go out and have a great time with your new digital underwater camera.


Digital Cameras Ratings Abolish Camera Comparison Guesswork

Digital cameras ratings are great tools for deciding which camera best fits your needs and budget. Ratings consider the specifications, features, camera design and test results. These facts are then analyzed and summarized to help the reader make an objective decision.
Before reading the ratings though, we must decide which type of camera fits our needs. The four main types of digital still cameras are:
  1. Ultra-Compact Digital Cameras
  2. Compact Digital Cameras
  3. Prosumer Digital Cameras
  4. Digital SLR Cameras

Top Rated Digital CamerasThis summary of top rated cameras is grouped by type, but in no particular ranking order.
Ultra-Compact Digital Cameras are pocket-sized and weigh only a few ounces, making them the perfect go-anywhere camera. Rated from three to more than seven megapixels, they produce quality photos that can be enlarged to 8" X 10" or larger. Most include optical zoom and other features.
  • Canon PowerShot S410, SD200, SD300, SD400 and SD500 Digital ELPH cameras
  • Casio EXILIM EX-S100,EX-Z50 and EX-Z750
  • Fujifilm FinePix F410
  • Konica Minolta DiMAGE X50 and G600
  • Nikon Coolpix 3700 and S1
  • Olympus Stylus 400 Digital, 500 Digital and Verve
  • Pentax Optio S5i
  • Sony Cyber-shot DSC-F88, DSC-L1, DSC-P200, DSC-T1, DSC-T7 and DSC-W1

Compact digital cameras are slightly larger but will still fit in a loose pocket or purse. Some are very inexpensive and make the perfect entry level camera. Three to seven megapixels and optical zooms are standard, with advanced features on some models.
  • Canon PowerShot A400, A510, A520, S60 and S70
  • Fujifilm FinePix A330, A345 and E550
  • Kodak EasyShare C360, CX7430, DX6340, and DX7440
  • Nikon Coolpix 3200, 4600, 4800, 5600 and 7900
  • Olympus Camedia D-540, D-580 and D-595
  • Pentax Optio 30
  • Sony Cyber-shot DSC-S60, DSC-W5 and DSC-W7

Prosumer digital cameras are for the true photo enthusiast. They are a cut above the compact digital cameras, but less expensive than digital SLR cameras that professional photographers require. SLR-style TTL, six megapixels or more, image stabilization, super zooms and other advanced features are typical.
  • Canon PowerShot G6, Pro1, S2 IS and S70
  • Casio EXILIM PRO EX-P600 and EX-P700
  • Fujifilm FinePix S5100
  • Konica Minolta DiMAGE A2, A200 and Z5
  • Nikon Coolpix 8400, 8700 and 8800
  • Olympus Camedia C-5060 Wide Zoom, C-7000 Zoom, C-7070 Wide Zoom, C-765 UltraZoom, C-770 UltraZoom and C-8080 Wide Zoom
  • Panasonic Lumix DMC-FZ5 and DMC-FZ20
  • Sony Cyber-shot DSC-F828, DSC-H1 and DSC-V3

Digital SLR Cameras offer just about anything the serious photographer could want or need. High quality optics in interchangeable lenses, top rated sensors up to 16 plus megapixels, and advanced professional focus and exposure controls make these cameras a photographer's dream come true.
  • Canon EOS 20D, EOS 300D Digital Rebel, EOS 350D Digital Rebel XT, EOS-1D Mark II Pro and EOS-1Ds Mark II Pro
  • Fujifilm FinePix S3 Pro
  • Konica Minolta MAXXUM 7D
  • Nikon D50, D70, D70s, D2x Professional and D2h High Speed Professional
  • Olympus E-1 and E-300 EVOLT
  • Pentax *ist D and *ist DS
Of the hundreds of digital cameras on the market, these rated at the top of their categories. Each camera has unique features, but all are best digital camera values.

Saturday, October 20, 2012

5 Basic Digital Camera Terms You Need To Know

Being familiar with the terminology used in any subject of interest in is always useful, and digital cameras are no exception. Although most digital cameras available on the market allow you to simply point your camera and quickly snap a picture with the touch of a button, there is often a lot more going on behind the scenes than you may have realized.
Put simply, understanding the most important terms about digital cameras will allow you to make a better-informed purchase of a new digital camera, let you have more control over your digital camera's features, and help you to take the best quality photos possible.
1. Megapixel
When we use the term megapixel, we are referring to the maximum resolution at which a digital camera can take photos in millions of pixels. This means that a camera with a range of 4 megapixels can take photos which each contain a maximum of 4 million pixels.
But what does this mean to the consumer? One word: quality. A higher megapixel count means better quality photos, and considering the price of digital camera getting lower all the time; you should try to stick with a digital camera that has a 3 megapixel range or above, especially if you intend of making prints of your photos.
2. Focal Length
Focal length is a term overlooked far too often in amateur photography, and refers to how much the lens of a camera can magnify a shot. Focal lengths are generally split into two categories, these being wide-angle and telephoto, which are better for spacious and narrow fields of view respectively.
Due to the ease of manufacturing telephoto lenses, digital camera manufacturers seem to provide wide-angle lenses in a lot less cameras, even though these lenses are better suited towards the type of photos that most people commonly take, including groups of friends and wide landscapes. To sum up, a wide-angle focal length is the better choice in most cases, with the 20mm and 35mm varieties catering to most people's needs.
3. Digital Zoom
Unlike the focal length, digital zoom is a term that seems to be given a lot more attention than it deserves. Unlike optical zoom, which uses the physical lenses inside the camera to enlarge a scene, digital zoom electronically enlarges the pixels in the center area of a photo, meaning that any time you use the digital zoom function on your camera you are actually sacrificing the quality of your photos. It is a good idea to disable the digital zoom function all together to stop this from happening.
4. ISO
The term ISO stands for the International Standards Organization, but what does this have to do with your digital camera? The organization sets standards for photography, and the ISO range of a camera refers to how sensitive the camera is to light.
For instance, a low ISO number (100 or under) is not very sensitive to light, and is best for shots in good lighting conditions. A higher ISO range means that the camera will be suitable for photography in darker conditions, so it is best to look for a camera that has an adjustable range; ISO 100 to 400 should be adequate for most people's needs.
5. Shutter Lag
Shutter lag refers to the time between pressing the button to take a photograph and the time when the picture actually gets taken. This may not seem a very important factor when buying a camera, but think of it this way: if you have to wait a second or longer for a photo to be taken, like with many older and inexpensive digital cameras, then chances are that you won't end up with the photo you desired. Many camera manufacturers do not list the shutter lag time for their cameras, so the best way to find this out is by testing a camera before you buy.
Conclusion
Hopefully this article has helped you to better understand some of the most important terms used when referring to digital cameras, and in turn will help you to choose the digital camera that best suits your needs. I think that testing a digital camera before you make a purchase can help greatly when it comes to making a final decision, and it makes sense to do so; you may be using the camera you choose to capture your memories for years to come!

Digital Camera Guide - How to Select the Best Digital Camera

An electronic machine that converts images into electronic data is known as digital camera. Latest multifunctional digital cameras can take photographs, video and sound. Digital cameras are categorized as video cameras, still cameras and professional modular digital camera system.
Digital cameras require memory to store any kind of data. Cheap digital cameras or camera phone utilize onboard memory to store the data. Several dedicated cameras come with a removable memory card that store data temporarily. Digital cameras use secure digital cards, XD cards or memory stick cards in order to store data.
Nowadays market is full of different kinds of digital cameras and you should choose the best digital camera as per your needs. Digital cameras come with different price ranges that enable you to choose the best as per your budget. Before purchasing a digital camera your first decision should be about the resolution of digital camera. Sometimes a higher resolution camera proved as wastage of money, storage and processing power.
A large number of pixels don't mean a better image so be cautious while purchasing. Lower resolution camera is the best to post images to the web, email files or view images on your computer. Don't think that only a high capacity memory card will give better performance because a small-capacity memory card can also give high quality performance.
Sometimes digital camera uses its own battery and charger or it can also use double-A sized batteries. Digital cameras may connect to a computer for data transmission. Most common method of connectivity is USB but sometimes people use Fire wire port or Blue tooth. Various cameras like EasyShare are able to connect to computer networks wirelessly.
You can easily buy best quality digital camera at cheap rates with a slight concentration and knowledge about digital cameras.

The Magic Behind Digital Camera

A digital camera, as opposed to a film or videotape camera, uses an electronic sensor to transform images (or video) into electronic data. Modern digital cameras are typically multifunctional and the same device can take photographs, video, and/or sound.
In 2005, digital cameras are starting to push traditional film cameras out of many markets. Shrinking device sizes have recently allowed miniaturized digital cameras to be included in multifunctional devices, such as cell phones and PDAs.
Classification
Digital cameras can be classified into several groups:
Video cameras
* Professional video cameras such as those used in television and movie production. These typically have multiple images sensors (one per color) to enhance resolution and color gamut. Professional video cameras usually do not have a built-in VCR or microphone.
* Camcorders used by amateurs. These are a combination of camera and VCR to create an all-in-one production unit. They generally include a microphone to record sound, and feature a small LCD to watch the video during filming and playback.
Still cameras
Digital still cameras are generally characterized by the use of flash memory and USB or Fire Wire for storage and transfer.
Most have a rear LCD for reviewing photographs. They are rated in mega pixels; that is, the product of their maximum resolution dimensions. The actual transfers to a host computer are commonly carried out using the USB mass storage device class (so that the camera appear as a drive) or using the Picture Transfer Protocol and its derivatives.
All use a CCD (for Charged Coupled Device) which is a chip comprised of a grid of phototransistors to sense the light intensities across the plane of focus of the camera lens.
There has recently been some application of a second kind of chip, called a CMOS (Complementary Metal-Oxide Semiconductor) sensor, and this chip is often differentiated from a CCD proper in that it uses less power and a different kind of light sensing material, however the differences are highly technical and many manufacturers still consider the CMOS chip a charged coupled device. For our purposes, a chip sensor is a CCD.
* Standard Digital Cameras: This encompasses most digital cameras. They are characterized by great ease in operation and easy focusing; this design allows for limited motion picture capability. They have an extended depth of field.
This allows objects at multiple depths to be in focus simultaneously, which accounts for much of their ease of focusing. It is also part of the reason professional photographers find their images flat or artificial-looking. They excel in landscape photography and casual use.
* Digital SLRs typically have a sensor nine times larger than that of a standard digital camera, and are targeted at professional photographers and enthusiasts. They resemble ordinary professional cameras in most ways, with replaceable flash and lens components, which give the user maximum control over light, focus and depth of field.
They are also bulkier and more expensive than their casual-use oriented counterparts. They are superb for portraiture and artistic photography because they can be customized for various applications with a comprehensive range of exchangeable lenses.
Professional modular digital camera systems
High-end digital camera backs used by professionals are usually separate devices from the camera bodies which they are used with. (This is because most of the large- and medium-format camera systems in professional use at the time that digital capture overtook film as the professional's medium of choice were modular in nature, i.e. the camera body had multiple lenses, viewfinders, winders and backs available for use with it to fit different needs.)
Since the first backs were introduced there have been three main methods of "capturing" the image, each based on the hardware configuration of the particular back.
The first method is often called "Single Shot," in reference to the number of times the camera's sensor is exposed to the light passing through the camera lens.
Single Shot capture systems use either one CCD with a Bayer filter stamped onto it or three separate CCDs (one each for the primary additive colors Red, Green and Blue) which are exposed to the same image via a beam splitter.
The second method is referred to as "Multi-Shot" because the sensor is exposed to the image in a sequence of three or more openings of the lens aperture. There are several methods of application of the multi-shot technique.
The most common originally was to use a single CCD with three filters (once again red, green and blue) passed in front of the sensor in sequence to obtain the additive color information.
Another multiple shot method utilized a single CCD with a Bayer filter but actually moved the physical location of the sensor chip on the focus plane of the lens to "stitch" together a higher resolution image than the CCD would allow otherwise. A third version combined the two methods without stamping a Bayer filter onto the chip.
The third method is called "Scan" because the sensor moves across the focus plane much like the sensor of a desktop scanner.
These CCDs are usually referred to as "sticks" rather than "chips" because they utilize only a single row of pixels (more properly "photosites") which are again "stamped" with the Bayer filter.
The choice of method for a given capture is of course determined largely by the subject matter. It is usually inappropriate to attempt to capture a subject which moves (like people or objects in motion) with anything but a single shot system.
However, the higher color fidelity and larger file sizes and resolutions available with multi-shot and scan-backs make them attractive for commercial photographers working with stationary subjects and large-format photographs.
Webcams
* Webcams are digital cameras attached to computers, used for video conferencing or other purposes. Webcams can capture full-motion video as well, and some models include microphones or zoom ability.
These devices range in price from very inexpensive to expensive higher-end models; many complex webcams have a servo-controlled base capable of tracking facial motion with the help of software.
Interpolation
Image color or resolution interpolation is used unless the camera uses a beam splitter single-shot approach, three-filter multi-shot approach, or Foveon X3 sensor.
The software specific to the camera interprets the information from the sensor to obtain a full color image. This is because in digital images, each pixel must have three values for luminous intensity, one each for the red, green, and blue channels. A normal sensor element cannot simultaneously record these three values.
The Bayer filter pattern is typically used. A Bayer filter pattern is a 2x2 pattern of light filters, with green ones at opposite corners and red and blue elsewhere.
The high proportion of green takes advantage of properties of the human visual system, which is determines brightness mostly from green and is far more sensitive to brightness than to hue or saturation.
Sometimes a 4-color filter pattern is used, often involving 2 different hues of green. This provides a wider color gamut, but requires a slightly more complicated interpolation process.
The luminous intensity color values not captured for each pixel can be interpolated (or guessed at) from the values of adjacent pixels which represent the color being calculated.
In some cases, extra resolution is interpolated into the image by shifting photosites off of a standard grid pattern so that photosites are adjacent to each other at 45 degree angles, and all three values are interpolated for "virtual" photosites which fall into the spaces at 90 degree angles from the actual photosites.
Connectivity
Many digital cameras can connect directly to a computer to transfer data. USB is the most widely used method, though some have a Fire wire port.
Integration
Some devices, like mobile phones integrates digital cameras. Mobile phone cameras are much more sold than standalone digital ones.
Storage
Digital cameras need memory to store data. The higher one goes in pixel size, the more memory will be needed. Cameras use a removable memory card to store data, but the cheapest and smallest cameras may simply use fixed internal memory instead. Some cameras come with inbuilt memory as well.
Autonomous devices
An autonomous device, such as a PictBridge printer, operates without need of a computer. The camera connects to the printer, which then downloads and prints its images. Some DVD recorders and television sets can read memory cards too.

Friday, October 19, 2012

Top Ten Tips For Mastering Small Camera Digital Photography

First and most importantly... Don't be silly, you can't master anything based on ten tips but novice photographers can improve their skills and photographic results by following a few simple guidelines for beginners.
  1. Read the manual that comes with your camera. Actually you may want to read it before you even buy the camera and this can often be done at the manufacturer's website. Sure it's mind-numbing but there is a lot of good information in there that is going to be more useful that the stuff they tell you in the sales blurb. You may decide on a different model based on what is in the manual. Know what your camera can and can't do before you use it.
  2. Always have your camera with you and ready to shoot. This means you will never leave the house with a dead or dying battery or without a working memory card (one that is not already full). You must have the camera with you and it has to be accessible and ready to fire at a moment's notice. Practice your quick draw technique then shoot first and ask questions later.
  3. Move in close. Most small digital cameras have zoom lenses that are slow and finicky to adjust at anything other than the widest or longest setting. Don't stand there waiting on it, just move your feet! If I hand you a camera and you ask me how to use the zoom, I'm going point at your shoes and tell you to start moving them. So don't bother asking, just get going.
  4. Use the rule of thirds. What? Never heard of that? What? It simply means that most of the time your composition will be improved by moving the subject so that it is not in the center of the frame. There are exceptions to every rule so when in doubt take at least two photos with slightly different framing and you can make up your mind which one looks best later. You may need to focus on your subject first and then lock the focus by holding the shutter button half way down. Focus, lock and recompose.
  5. Use the flash indoors and out. I know you are likely to remember to use the flash indoors but the fact is that the flash will greatly improve your photos of people or other objects in the foreground if you use it outdoors as well. You should also try to keep in mind that open shade is a lot better for taking photos of people than bright overhead sun and when they are outdoors a lot of people like to wear hats, which also cause dark shadows on faces. Just remember to use that flash all the time and keep in mind that it has limited power so don't get so far away from your subject that it can't reach them. You can find the flash range in the camera manual.
  6. Watch the background and keep it simple. No it's not always going to be easy but if you think about it in advance you can usually find a less distracting background for your people portraits. Sure it may be a hoot to see a flagpole sticking out the top of your friend's head but it won't get your photo in to National Geographic Magazine either.
  7. Hold it steady (as a rock). The best thing you can do to improve the sharpness of your photos is to buy a tripod. No matter how good (or expensive) your camera and lenses are you will always take sharper photos on a tripod. Tripods are a must for landscape photography where you will want to capture the maximum amount of detail your camera can render. A tripod will also allow you to make creative photographs of moving water and capture the magic light of the rising and setting sun. Small cameras usually work great on bright sunny days but they may need a little assistance when the sun is low or clouds fill the sky. A small tripod is better than no tripod and can often be set on top of a rock or tree stump to get it up off the ground. On cameras lacking a cable release or infrared shutter remote you can use the built in self-timer to get vibration free shots and even put yourself into the action.
  8. Turn the camera sideways. Sometimes things look better in a vertical frame. Portraits often look better in portrait mode and the same is true for landscapes. Shooting vertical allows you to include details in the foreground of your landscape shots that give them a sense of depth and perspective. It's a good idea to get in the habit of shooting things in both horizontal and vertical formats. Just don't try shooting vertical if you are making a video clip.
  9. Details, details and macros. Does your camera have a macro mode? If it does then you better be using it to record the fine details of your outdoor experience. The folks back home will love seeing a photo of the cut on your finger or the tick stuck in your leg. You can take photos of the camp food, dragonflies, fish scales or close ups of your dirty toenails. The choice is up to you, the storytelling options are limitless. Use your mini tripod or brace the camera against a water bottle or other solid object. Any movement will be magnified along with the subject, so keep the camera steady.
  10. Mind the light and move like a satellite. Keep an eye on the light at different times of the day. Morning and evening light are often best for landscapes while cloudy or overcast light works well for softly lighted flattering portraits. Remember that light is often directional, so a good rule of thumb is to act like a satellite or moon in orbit so you can study your subject from every possible angle. It gets back to the idea of moving your feet and choosing the view or perspective that best suits what you are trying to photograph.

Better Photos From Better Cameras - Digital SLR Cameras For The Masses

Digital single lens reflex cameras (aka DSLR) are the newest rage in photography. While they have always been the choice of professionals, recent camera buyers are opting for these types of cameras much more frequently. All major manufacturers have models available, but the most popular brands are Nikon and Canon. Mid-range DSLR cameras can be purchased for about $1500. This is a real bargain when you consider prices only a few years ago were much higher. Right now, you can get one of the budget models for about $600.
If you have followed the trends in digital photography, you know that the size of image sensors has found a happy medium after a few years of intense competition, starting at 6-megapixels and increasing to the present day 14-18 megapixel sensors. Currently, if you get a camera with a 14-megapixel sensor, you will have plenty of "pixel-power" to produce images of the finest quality at just about any size for hanging on your wall.
In addition, features and settings have improved tremendously. Video is now a common feature and it usually comes with stereo sound and full HD quality. There are creative features and additional mode settings so that you can choose a photo style that will give you a finished photo with a professional look. This simply means that you can shoot your pictures and practically eliminate the post processing that was previously needed to get your images to wow your audiences.
Of course, the one thing that most new buyers state as their top reason for buying a mid-range DSLR camera is the flexibility that comes with interchangeable lenses. Lens choice can make a night-and-day difference in the outcome of a photo shoot. If you want to take more professional looking portraits, you can choose a lens just for that purpose. If, on the other hand, your goal is to get much better at nature photography, you would choose a different lens. The beauty is that the lenses go on the same camera. It is true that the lenses can actually cost as much or more than the unit you attach them to, but even if you can't afford the biggest and best at first, you can build your kit as time goes on. And if you discover at a later time that macro photography is the way you want to go, again, the lens is all you need.
You may wonder if getting a lens that is more expensive than the camera is a good investment. The answer is, yes. This is a decision you will have to make as your skills develop. But experts agree that the lens is as important as the camera.
And the most important of all is the one who is holding all this fabulous equipment. You will have to develop your knowledge and skill to reach your goal of taking better pictures. If you don't study and practice, you may as well just keep taking pictures with your old point and shoot model or your cell phone.

Cash From Your Camera - Digital Photography Levels the Playing Fields

 The buzz word in the digital world is that cash can easily be made from your digital camera. How much, remains to be seen. What digital does do is level the playing fields bringing thousands of photographers into play that formerly were restricted by the financial constraints of film. Does this include the digital point and shooters with inferior equipment hoping to jump on the band wagon? Absolutely not!
The making of money from stock photography debate rages on, fueled by the eBook systems that say anyone can make hundreds of dollars per day from their old images. Let me put it straight. There is no money to be made by point and shooters with low quality images that will ever make the grade of the stock site reviewers. 99% of their images are just not good enough. Micro stock does not mean micro standards or micro quality.
What I am talking about are the photographers who are able to shoot great images and have done so for years. These are the ones who will make money. In the past they weren't able to shoot the high volumes of images needed to get the great shots because of the high costs involved. This was one of the barriers for the high quality amateur photographers of film. It is only now with the reduction in prices of good quality SLRs that the former shooters of film are coming out of the woodwork and transitioning to digital. Many have waited for the quality gap between digital and film to narrow and then only taken the leap of faith to digital.
I see that there are two factors involved involved here:
1. Digital allows the amateur photographer to shoot quantity.
Although shooting quantity doesn't guarantee quality it does allow the variations and experimentation that will allow amateur photographers to vary their portfolios thereby increasing their chances of getting those great shots. Time, care and careful composition are still absolutely essential for any photography; digital just helps you get there quicker. In the past cost meant that it took longer to do this. Digital means that you can shoot in a few months what it took to shoot in years with film. No amateur used a motorwinder to increase chances of getting the shot because the film costs were just too prohibitive. With digital, how fast you shoot is only governed by the camera's frame rate, the size of your memory card and not your wallet.
2. Digital narrows the gap between amateur and professional
This leads on from point one. The costs. No amateur could afford the many rolls of film it took to get THE shot. With digital this is now possible.  With film the pro used more than one camera with different films of varying speeds. This was not possible for an amateur. But now with digital the ISO, white balance and other settings can be varied from shot to shot on a single camera. The instant feedback of the digital camera allows the amateur to see mistakes immediately and correct them in the field thereby reducing the time it takes to get to a pro level quite drastically. Of course, you can't exclude the raw talent of many professionals but it does level the playing fields and allow the amateur without financial backing and the same raw talent to compete.
Again I want to emphasise the fact that it is the amateur with talent, ability and fine photo composition skills together with good equipment that will make money from stock photography. The reviewers on the stock sites are looking for everyday, run of the mill images of QUALITY that the photo buyers will buy. Not the amateurish photos of the point and shooter using any old digital camera and lead on by the promises of the "cash from your camera" eBook authors.
Just take a look at the microstock photography forums and look at all the questions, moans and crying over false expectations and equipment that doesn't make the grade of the stock site reviewers. These people aren't making the money they were promised. Buy this book, no photography skills required and let the dollars roll in borders on fraud. It's like the stock market. Lots of money to be made but not by the masses. If anyone could make money without any skill there would be no more poverty in the world. Is there still poverty? You answer that.
How is digital going to help you sell your photos? By speeding up the process of learning drastically so that you can begin to produce good quality images that stock companies want on their websites and buyers want to purchase. Learn the fundamentals of great image taking quickly and easily through the amazing medium of digital. Learn first and then work at making money from your camera.

Thursday, October 18, 2012

My Digital Cameras Keep Becoming Obsolete

As a digital camera owner, this scenario likely applies to you. After visiting a digital camera store, talking to friends, reading reviews, or possibly shopping online, at one time you bought what you thought was the perfect digital camera for your needs.
After purchasing this digital camera and using it for a few weeks, you later visited the same store, browsed the same websites, or scanned through the latest issues of those same magazines, and guess what? A newer, 'better', faster, and cheaper digital camera is now available, making your current camera seem 'uncool', agonizingly slow, and obsolete. I can definitely say the above scenario has happened to me - way too often. I've purchased five digital cameras in the last few years and have friends who have been through many more. Instead of continually burning holes in your wallet, how can you purchase a digital camera that will continue to stay cutting-edge for years to come?
Welcome to the sad truth - obsolescence is inevitable with digital cameras, just as it is with cell phones, computers, television sets, or other electronics. No matter how much time you take researching digital cameras, no matter how much money you spend, sooner or later a new model will be released, making you rue the day you purchased your 'old' camera. You may be thinking, "I'm ready to purchase a new digital camera. Should I spend the money now and buy a camera, or wait a few months until something better comes along? The one I am interested in buying might become obsolete soon."
My advice: unless you are still very happy with your current digital camera and absolutely know a specific new digital camera model will soon be available, go ahead and purchase the best camera you can find. When I mean "best", I don't mean the most expensive, or even the digital camera with the most "bells and whistles". I mean the camera with the best combination of features and value for your budget. Life is short - really short. You could wait, watching the releases of camera after camera, and think, "I'm smart. I'm going to wait until a better digital camera exists." While you may technically save money in the long run, there are larger costs you're enduring - the opportunity and enjoyment costs of not having the right equipment for your needs during the time waited.
If you always wait for the newest crop of digital cameras to be released, you could very well wait forever. Digital cameras continue to advance in technology with no end in sight.
* Megapixels: I remember when one megapixel cameras were all the rage. Now twelve+ megapixels is not uncommon, and if you read this article years from now, who knows what will be the norm.
* Focal length: My first camera had no zoom at all. My old prosumer camera has 7x optical zoom, I have a digital SLR with a 28mm - 300mm zoom lens, and other cameras and lenses on the market have even greater focal distances.
* Speed: Expect continual increases in shutter speeds, plus decreasing startup and memory writing times. And if you own a digital SLR, newer and faster lenses will be released to market.
* Image Quality: New lenses and image sensors will continue to produce clearer, more exact replicas of your subjects in digital form.
* Battery length: Think your digital camera can't last but a few dozen or hundred photos before switching batteries? Even that will change.
You could constantly worry about obsolescence, or you have a couple of other options:
* Plunk down more money and purchase a digital SLR camera instead of a prosumer or compact camera. Unless you are familiar with dSLRs, you may have to spend some time familiarizing yourself with controls and techniques, but these cameras have several advantages. Digital SLRs may have quicker start-up and media write times. Since dSLR lenses can be changed, you can acquire different zoom distances and quicker exposures without buying a new camera body. And if later you do purchase a new camera body, if you purchase the same brand of camera you may be able to reuse your current lenses.
* Are you sure you have read your manual and taken full advantage of your current digital camera? Have you learned about adjusting shutter speeds and ISO sensitivity to take faster exposures, white balance settings to make photos seem truer to life, and bracketing so you can better experiment with all of these features?
* As New Yorkers are prone to say, "Fugitaboutit"! Great photography requires more than just great equipment, and great pictures can be made without top-of-the-line electronics. Remember that even with a first-class digital camera, if your composition is boring and your lighting dull, the results will prove likewise.
An ancient proverb states that "the only thing constant is change". Such is true with the development of digital cameras. Don't let life pass you buy while waiting for the perfect digital camera that will never become obsolete. That day may not occur, at least in our lifetimes. If you're in the market for a digital camera, buy the best one available for you, enjoy shooting photos, and don't always be concerned about newly available 'better' digital cameras. Eventually you may upgrade (again), but for the time being, just relax, enjoy your hobby, and get everything you can out of your camera.

Digital Cameras Christmas Gifts Guide - Know the Top 10 Xmas Presents Now - Canon Powershot?

One of the most wished for items or gifts this Christmas are digital cameras. And why not, when the digital cameras today are sleek, stylish gadgets that will allow someone to capture moments in time and keep them forever? If you're thinking of getting someone this special gift, then you better do some research first. Below is a list of the Top 10 Digital cameras - Christmas gifts for 2008. Hopefully it will help you crop your choices when buying a digital camera as a gift. Good luck!
1. Canon PowerShot A590IS 8MP Digital Camera with 4x Optical Image Stabilized Zoom - this beauty right here can capture images with such detail that they can be used in making 16x22 inch prints. The 8MP CCD is one of the best in the market. Add to that a 4x optical zoom with Image Stability, Face Detection Mode, and an Easy Mode for beginners, and you've got a great digital camera for a perfect Christmas gift.
2. Canon PowerShot SD1100IS 8MP Digital Camera with 3x Optical Image Stabilized Zoom (Blue) - another 8MP digital camera from Canon, this one comes in a stylish blue color. The same features are present, with the additional Motion Detection technology to reduce blur. Another great addition from Canon.
3. Canon PowerShot SD790IS 10MP Digital Camera with 3x Optical Image Stabilized Zoom - the beauty of this digital camera comes with the fact that it is perfectly designed. But beauty is not all that it has. Its astounding 10MP CCD can capture images for poster prints, and it has Face Detection, Motion Detection, and Image Stabilizer technologies to boot.
4. Canon PowerShot SD1100IS 8MP Digital Camera with 3x Optical Image Stabilized Zoom (Silver) - the fourth placer in the list of the Top 10 Digital cameras - christmas gifts for 2008 is another Canon digital camera. It's the same SD1100IS digital camera but it comes in a silver color which would appeal to your friend who likes the sleek, silver design. All the features are unchanged, of course.
5. Canon Digital Rebel XSi 12.2 MP Digital SLR Camera with EF-S 18-55mm f/3.5-5.6 IS Lens (Black) - this digital SLR camera is perfect for those friends of yours who are serious about their photography, but at the same time, wants the ease of use of a digital camera. Equipped with a 12.2 CMOS sensor, a huge 3.0 Inch LCD display, and powerful lenses, this digital SLR camera is the perfect choice.
6. Kodak EasyShare C713 7MP Digital Camera (Pink) -Kodak's offering is at number 6 in this list of the Top 10 Digital cameras - christmas gifts for 2008 . This digital camera is definitely an eye-catcher with its pink design. However, it's not just all looks for this one. It also comes with a 7MP resolution and a 3x optical zoom. It can also take VGA videos with audio. It's a fun, stylish camera for your fun and stylish friend!
7. Canon Powershot SX10IS 10MP Digital Camera with 20x Wide Angle Optical Image Stabilized Zoom - the 10.0 MP resolution alone is great. Add to that a 20x Optical Zoom with Image Stabilizer and a movie mode, and you've got a great multi-purpose camera for your loved one.
8. Canon PowerShot SD880IS 10MP Digital Camera with 4x Wide Angle Optical Image Stabilized Zoom (Silver) - Canon proves itself as the leader in the digital camera range once again. This time, it's this 10 MP beauty with Image Stabilization and Face Detection that has garnered a spot in our list. It's a great point and shoot camera with a lot of special features that would make your friend fall in love with it.
9. Canon PowerShot SD1100IS 8MP Digital Camera with 3x Optical Image Stabilized Zoom (Pink) - this pink version of the SD1100IS digital camera is great for the sophisticated ladies. It's classy, it's elegant, and most of all, it doesn't lack in any of the features that all the other Canon SD1100IS digital cameras have. In one word, it's perfection.
10. Canon PowerShot SD770IS 10MP Digital Camera with 3x Optical Image Stabilized Zoom (Silver) - the last in our list of the Top 10 Digital cameras - christmas gifts for 2008 is another Canon camera. You could never go wrong with this one. It has everything that the higher versions have (SD1100IS and SD880IS, for example) except that it doesn't have the Wide Angle option. Still, it's a great camera for your friend or family who's just starting to love photography!
Go ahead and use our list for the easiest and convenient holiday shopping.

Digital Cameras - Snap the Memorable Moments

Restoring the rare moment of one's life is the most beautiful and expensive possession. The memories of childhood, the convocation ceremony in the college and the lonely walk at old age are the special moments for everyone. All these moments can be captured with a simple click of soft button and can be stored for life-long memory.
A digital camera captures video or still photographs digitally by recording images on a light-sensitive sensor. There are also many digital camera which can record sound and movingof digital camera. With the captured images manipulation can be done through digital videos as well as still photographs. Restoring the photographs is one of the prime functions cameras, it has all the features for making changes to photographs.
Digital cameras are becoming smaller day by day and the features are also increasing in it. The choice of digital camera depends with the requirement of the user. There are various category of digital cameras like the compact digital cameras, ultra compacts, bridge cameras, digital single lens reflex cameras, line-scan camera, compact digital SLRs and digital SLRs.
This days digital cameras are used in many devices from mobile phones to personal digital assistants and vehicles. The Hubble space telescope and other astronomical devices are having specialised digital cameras. There are high-tech digital cameras available in the market with which one can take underwater photographs. The underwater digital cameras are very useful in capturing sealife, scuba diving and something artistic under the sea.
Taking some underwater pictures is everyone's dream and while exploring the deep sea, one can take photographs and can save magical memories that can be relived until the next undersea adventure. These photographs about looking into the eyes of rarely seen creatures can be permanent recorded from the underwater digital cameras. There are various underwater digital cameras namely sea and sea DX-1G compact digital 10.0 MP camera, Intova IC-700 7.0 MP digital camera with underwater housing, Sealife SL 320 Reef master mini underwater digital camera, VuPoint DC-WPC-ST531TBLK-VP underwater digital camera and many more.
The most important accessory of a digital camera is the memory card. It is used to store the pictures taken on digital cameras. The memory card in the digital camera can be equated with hard disks in computers. The memory card varies in capacity and the additional memory cards are generally either 128 MB or 265 MB. Memory Stick, Compact Flash and Smart Media, etc. are all different type of memory cards. The use memory card is dependent on the users camera type, the memory card can be re-used, once saving the required photographs on the computer, or copying them on a CDs etc. The most commonly used card in digital cameras is the 16 MB cards, and most of the digital cameras make use of removable storage memory for the purpose of recording images.
There are also cheap digital cameras available in the market; these camera are very handy and useful for all purpose. The cheap digital cameras is equipped with all the high-technology features and are very result oriented. The presence of this type of camera can be felt in the market, where it has a good share in the revenue. Many renowned companies are coming up with cheap digital cameras to cater the demand of the customers and to capture the market. This cheap digital cameras are second to none in terms of quality and durability as compare to any digital camera available in the market.
The demand for digital cameras are increasing with each passing day with some brilliant and high-tech digital camera in the market. The manufacturers are catering to the demand with all new features added everyday in the cameras.

Wednesday, October 17, 2012

The Early Digital Camera

A digital camera is basically a digital device that enables images to be captured. Digital camera images are stored electronically rather than on film. This process involves converting light into electrical charges, and then translating this back into the image that was seen through the digital camera LCD. Although the digital camera is a recent addition to the world of photography, the concept of the possibility of a digital camera was begun in the 1950s.
The early concept of the digital camera was closely linked to television technology. It began with digital images being recorded on scanners and in the form of digital video signals. In 1951 broadcasting companies were recording images as electrical impulses and onto magnetic tape from their television cameras, and this paved the way for digital camera technology to begin. By 1956 electrical impulse recordings were common practise within film industry, and camera manufacturers began to dream of a digital camera device.
The first record of a patent for a type of digital camera was in 1972 when Texas Instruments patented a camera that did not require film. However, the patent revealed a more analog based design rather than a digital camera, and there is no record of whether the camera was actually created. What the patent does show, however, is that interest towards a digital camera was growing with the idea that the need for film could be removed. A pioneer in the history of digital camera was Steve Sasson, an engineer at Kodak. Digital images were of the moon were being transmitted via satellite by NASA, using a mosaic photo sensor, and he saw the possibility of a digital camera for commercial use. In 1972 he began to group together available equipment used within the film industry to create an image digitally rather than on film.
Central to this early concept of the digital camera, and still used by digital cameras today, is the Charged Coupled Device. The CCD detects light and colour intensity and then converts this information into electrons. The value of each cell in the image is then read, and converted to binary format to make the image computer compatible. Steve Sasson produced his first digital camera image in 1979. The image took a total of 23 seconds to take, and a further 23 seconds to read from the playback unit. Although the digital camera image was less than perfect, it showed that the digital camera was a possibility. Kodak had developed a camera that developed picture from light, but it was never manufactured for the public.
The first camera to be marketed was the Sony Mavica electronic still camera in 1981. It was not a true digital camera as the image was recorded on mini disc, and then attached to a television or video. It was more a freeze frame video camera but it greatly influenced people`s attitude to the recorded image. It made public the possibility of a camera that stored images using techniques other than film. It still used more television technology but was the first hand held with the general idea of digital camera usage. Cameras that could transmit images via satellite became popular, but were used by the media only due to the expense incurred. The possibilities were becoming apparent and images were used for news coverage. The first camera for general use with a computer was the Apple Quicktake 100 camera which appeared in1984. In 1986 the Canon RC-701 was used for coverage of the Olympics, with quality images printed in the newspaper. This showed the possible quality, and the desire for the digital camera was born.
The first mega pixel sensor was invented in 1986. It contained 1.4 million pixels and was suitable for a digital camera image measuring 5x7 inches. In 1987 accessories for storing, printing, manipulating, transmitting, and recording digital images came onto the market, with the Fuji DS-P1 arriving in 1988. This is arguably the first true digital camera as recognised today, boasting a 16MB memory card. With the arrival of JPEG and MPEG standards in the 1990´s, the face of the digital camera was changed for ever. Kodak marketed the first readily available digital camera that met all standards, with the Kodak DC40 in 1995.
This article is under GNU FDL license and can be distributed without any previous authorization from the author. However the author's name and all the URLs (links) mentioned in the article and biography must be kept.

Cheap Digital Camera - Do You Really Want A Cheap Digital Camera?

So you recently bought a digital camera or perhaps your thinking about it. When choosing a camera, you need to decide what type of photographs you want to take with it. Purchasing a digital camera is a wise decision, particularly if you take a lot of pictures and you want to control how they are developed.
It is also necessary to remember that even though you might gift your child a digital camera to click photographs for school projects, they will be using it to take pictures of their friends. If you have made your mind up to start using a digital camera, or perhaps upgrading from an existing one, then you can be forgiven for being confused. The pictures taken by a digital camera have to be extracted by some means in order to get them onto a computer, or perhaps directly onto a printer.
Find a site that offers a wealth of information about how to choose your digital camera accessories, lighting and computer components to ensure you have everything you need to capture those special images. Software that can help you to organize your images properly is one of the essential digital camera accessories that you need. So should you be one of the lucky ones who find a digital SLR camera under the tree this year, you can maximize your photographic skills with the right camera accessories.
Much like a car, a digital camera loses around 30% of its value as soon as it leaves the shop so with Christmas coming up and the fact that soon many people will be trying to get rid of their unwanted gifts, it will shortly be boom time in the used digital camera market. Scrutinizing in some more detail, it can be observed that in digital photography some really good and fantastic one-trick-pony printers have filled up the market that are exclusively designed for the sake of printing digital camera photos.
One of the most important things for children is that the digital camera should be one of the latest available in the market. Looking at the advantages of these digital camera printers, the very first and the most significant one is that these printers do not require a computer for their functioning. Since a SLR is more expensive than other digital cameras, it is very important that you get yourself a proper insurance for the camera.
Hence, it is very important that you know exactly what you need your camera for in order to ensure that you are truly buying the best digital camera for yourself. So, the first question that you need to answer is that for what purpose you are planning to buy a digital camera. Before you buy a tripod for your digital camera, the first thing you must consider is how you plan to use the camera.
For long shots, if you don't have a tripod handy, you can always use someone else's shoulder for support - just so your cheap digital camera won't shake as much when you take the shot. If your objective is to take a camera on holiday, take it onto the beach and up a mountain and to print memorable images of your time on 6 x 4 inch prints, then do not spend a lot of money on your camera.
Remember, it's not too clever to spend a large sum of money on a brand new digital camera and after opening up the box only to read the instruction manual once and to not bother to learn all the cameras capabilities.
Doug Rogers has worked as a freelance photographer for the past 25 years in various fields of photography.

Knowing what Digital Camera Accessories you Need

Capturing a moment is best done with photography and in this time and age, the best option for this is through digital photography using a digital camera. Whether you are the type of person that is into photography or simply someone fascinated with capturing the beauty of certain views, then with a digital camera you will be able to tell the story of a moment that cannot be brought back. Digital photography allows you to touch many lives through the images of beauty and art which you are able to capture and be able to store electronically. It may perhaps be an option for others to be a profession and this could profession could even bring a lucrative compensation should you decide to take this path.
Living in today's high-tech world allows us to make use of the digital camera technology making it easier for us to shoot pictures on the go and be able to have them available in less time and with the use of digital camera accessories be able to improve or enhance the quality and experience of digital photography. The digital camera accessories available today as tools makes it better choice for us to invest in them especially if this becomes a hobby or a profession.
The Basic Necessities for Capturing the Moment
It doesn't really matter whether or not you do photography for profit or simply for leisure, it is probable that the next best equipment you need to invest in other than a nice new digital SLR camera are the digital camera accessories that you will use along with it. There are various types of digital camera accessories available that you may either need immediately or would need in the future which would help you with keeping your equipment in good shape, improve the quality of your photos, add additional capacity to your work output, reduce the complexities or simply just enhance your own photography experience. Some of the digital camera accessories may include any of the following and depending on your needs may even be further augmented as the need arises:
Camera Bags
The first probable investment being the camera bag, this is where you will place all the things that you will need when you are location shooting or traveling and it would also serve as your basic kit where all your photography equipment is stored and protected well. It is also one of the most inexpensive accessories that you may ever buy and add to this is that they enable you carry and protect the expensive equipment that you carry around. Camera bags come in many different shapes, sizes and colors through a wide variety of different brand names that specialize in this, and they are available for anyone's personal preference.
Camera Tripod
Of the camera accessories, perhaps the camera tripod is one that will help a lot of people since it helps reduce the amount of "camera shakes" when taking photos and allows you to take shots from a variety of angles. While does seem that this is a bulky and cumbersome accessory you should know that a great majority of tripods are either foldable or retractable and should be able to fit in most of the medium size to larger camera bags. If you happen to have one of the older tripods which you have used for your traditional cameras, then you should be ware that some of them are actually compatible with today's digital cameras and you may not need to re-invest in a new camera tripod. Just the ability to have steadier shot and a finer finished product is a must for many and this makes the camera tripod a great digital camera accessory to have and perhaps even a necessity for some.
Battery Chargers
For people who take vacations and for those that visit remote locations without the convenience or availability of digital camera accessories shops, the use of a battery charger is important. Even if you carry with you extra batteries sometimes these batteries just all of a sudden get drained and you are left with no power to your digital camera thereby rendering them useless. Having a battery charger is very handy in some situations and this may be the difference in being able to take that critical photo should the need arise. Being extremely affordable, it should be considered whenever deciding to but that those additional digital camera accessories on your next shopping spree.
Memory Cards
The memory card for a digital camera is perhaps the most important digital camera accessory for many as akin to a traditional camera that needs film, a digital camera needs memory for storage of images. Most people take this likely since the capacity of the memory cards they purchase with their digital camera is sometimes sufficient, it should however be known that some people do not delete or transfer the contents of the memory to other devices like PC's and in some cases the memory becomes full. Having that extra memory card with you will help reduce this from happening and will also be of great assistance during times when a large volume of photos need to be taken especially for professionals and for those that take a vacation in remote places where they are unable to transfer the images, and with no shops readily available in the vicinity.
You never know when your existing memory card will fail so keeping an extra card can pay dividends when the time comes. Just be aware though of what type of memory card your digital camera uses as there are various types of cards available for different digital cameras such as SD cards and Sony memory sticks. You don't want to buy a memory card that is not compatible to your digital camera.
Other Important Accessories
Lastly, one of the digital camera accessories that you may want to have is the digital photo printer, which is especially useful if you want to print your photos from the comfort of your home. Most locals now have photo shops that can process the printing of your digital images but for some the ability be able to print from home or from anywhere, then a photo printer is a must. All you will really need is to have printing consumables always available, your personal choice of photo paper such as matte or gloss and you will be able to print off any photo you want, at the sizes and quality you need. Most of the printers in the market today are already of photo output quality and the choice these days is what size of footprint you want, depending on your needs i.e. if you travel a lot then perhaps a small size printer will be best for you.
Conclusion
Whether you are a professional photographer or just enjoy taking pictures, you should be fully aware of the various digital camera accessories that are available in the market that can perhaps help you reduce the amount of effort in your profession or simply improve your photography experience. Some of these accessories can be expensive but a majority of them are indeed quite affordable and for many are in fact a necessity, and by being able to to have them can sometimes make the difference of being able to have that all important and perhaps even life changing moment captured. Availability for most of the accessories for your digital camera is in most cases excellent with a great number of electronic equipment shops in most locals and not to forget the growth of internet shops that specialize in providing thee services.
As a final note, even if the requirement for digital camera accessories is not for you, then perhaps someone you know such as family and friends has these needs and this actually makes for great gifts on special occasions like birthdays. Anyone with a digital camera will be more than happy to receive these accessories as gifts and this should give you more options when giving away gifts this Christmas or any other occasion during the year.

Tuesday, October 16, 2012

Which is The Best Digital Camera For You

Digitalization of cameras has really revolutionized the world of photography. The digital cameras have outrun all the traditional cameras and have become the most popular and best selling cameras in the market arena. They are in fact too attractive due to their multi-utility applications.
To get the feel of this revolution of digital cameras, shop around for various models of digital cameras. Thanks to the ever-improving technology that we are getting the much better digital cameras every hey day.
Every time a new DigiCam with advanced features is introduced in the market, it becomes the best selling digital camera. This is enough to gauge on the popularity of digital cameras.
Technology is the prime factor that makes the digital camera best selling as compared to its counterparts. There are many digital cameras in the market that are well-equipped with excellent features and give you the most outstanding photo results. In fact if you are planning to buy the one for you, you must also be looking forward to buy a best-selling digital camera.
An array of digital cameras in different brands, models, shapes, sizes, resolution and performance are available in the market. One digital camera can be best selling for its one unique feature, while some other digital camera may have another great feature that makes it special. There are different sets of criteria, on the basis of which the critics, review writers and most importantly the users determine them to be the best sellers.
However, it is not compulsory that a best selling camera can be the camera suiting your needs and budget. Since all the digital camera users have their own choices and preferences, it is not right to say that the best selling camera can be the best one for all the users.
There are many qualities and features in the camera that make it best or worse selling. So keep a few points in your mind before picking your digital camera.
First things first, always define the purpose of your purchase clearly in your mind before you go out to hunt for your digital camera. You must also know well the restrictions of your budget, if any. And now must go out and look for the best selling cameras and compare their features with your specifications.
The photo editor in the digital cameras is its most interesting feature. You can have fun, at the length of your creativity, with them. You can also attach your camera with computer and play up even more with the art of photography.
The durability of the battery is another important aspect for purchasing any camera.. If life of battery is good, it will surely be high on the charts of the best selling digital cameras. The long lasting battery cameras are the most useful one in the times of excursions and outings on the hill stations. If your camera supports long lasting battery, you need not spoil the fun of clicking by worrying on the current life span of your camera at all.
If a camera offers good space for storage or memory, it is considered to be high for the quality of your digital camera. As it is not possible for the user to transfer the images to any temporary storage space, like CD or Pen Drives they do rely a lot on the memory of the digital camera. A best selling digital camera in the market will definitely have quality zoom in and zoom out options. You can also go for optical zoom or digital zoom cameras, if your budget does not restrict you.
The digital camera you choose should be, above all, user-friendly, compact and lightweight. It should be easy to handle and care for all the family members. The camera should have a strong and durable built, to tolerate little jerks. If your digital camera is compact, it will be easy for you to carry them as compared to the bulky and big cameras.
So now you know that before picking the best selling camera in the market, you should check that the camera is best for you even!

Confussed About Digital Cameras Ratings

The digital technology has become a great hit and this has generated numerous varieties of digital cameras in the market. As a result of this feast of hi tech cameras, more confusion has been generated among the buyers. People are bewildered as there are so many features and specifications offered by different manufacturers.
Generally a buyer of a digital camera remains indecisive as to which camera they should buy. Even you would get confused if you don't have an idea as to how to compare digital cameras and buy the best one which meets your requirements. This problem of confusion has been realized by the retailers and so they have provided the option of digital camera ratings on the internet.
The digital camera ratings are the great tools that help one in deciding about a digital camera. They tell you which camera fits you best as per your budget and needs. However, there is a difference between the ratings and the reviews.
The digital camera reviews are generally the opinions by the expert reviewers. But the digital camera ratings are not the same. They consider all the features, specifications, test results and designing intricacies of a particular model of digital camera before rating them. The rating experts analyze all the facts and summarize them all. This information is very helpful for the reader. The digital camera ratings certainly help you reach to a comprehensive decision of buying a digital camera for you.
But before reading and following the ratings, it is important to do a little homework. You must decide what type of digital camera you exactly want. Ask yourself, which camera suits your needs. There are broadly four types of digital still cameras available in the market. These are: Digital SLR, Mid-Sized, Compact and Ultra-Compact Cameras.
An effective digital camera rating requires a good comparison. For an effective comparison of the best digital cameras, two major things are required. Firstly you must know the features and specifications of the camera and secondly the performance ratings should be clear in your mind. To analyze the rating comparisons of the digital cameras, it is essential that you know what does a camera rating aim at.
A digital camera rating tells the user about how long the camera can be used? It answers questions such as: What quality and size of prints, it will produce? What are its remarkable features?
The rating experts write down all the details and rank the camera ratings as per the ranking norms. The ratings help you in all cases, whether they are for an average or a professional or snapshot camera. You can scan the ratings and can easily narrow down your choices to just a few cameras. It is best to select and pay for the best quality digital camera.
There are some top rated digital cameras, which are kept grouped as per their type. The first type, Digital SLR Cameras offers everything that a camera must have. These cameras are especially designed to suit the needs of a serious photographer. They have high quality optics, interchanged lenses, top rated sensors, 16 or above mega pixels, professional advanced focus, exposure control and much more features.
The mid-sized digital cameras suit the true photo fanatics. These are the better cameras than compact digital cameras, but little low on the marks as compared to the digital SLR cameras. These cameras offer a resolution of 6 mega pixels or more, SLR-style TTL, super zooms image stabilization, and other advanced features.
Ultra-Compact digital cameras are the most comfortable to carry due to their pocket size. They weigh just a few ounces and are perfect to be carried with you. These cameras provide three or more mega pixels and generate excellent photos. You can further enlarge them in the size more than 8" x 10".
All the digital cameras have their own unique features. You can learn from the digital camera ratings which cameras yield the best value for your money.

Digital Cameras - Time to Dump Them?

Digital cameras are changing the world of photography. They are great pieces of technology that are not hard to learn to use. They are attractive and appeal to many consumers because of their availability in a wide range of prices and features. Digital cameras are very popular devices these days with good reason. They offer many advantages when compared to old, film-based cameras.
Cameras are now found in PDAs and cell phones and even in newer vehicles. The advantages include the ability to keep and print only the photos you want. Their extremely small size makes them very easy to carry around. The easy sharing of photo files over the internet and the ability to adjust image output quality to match individual needs makes them almost indispensable for anyone who uses the internet meaningfully.
These cameras are perfect for normal amateur shots of friends, family, landscapes and other general views too. Many photographers get into digital photography because they can print photos from their home printers.
Digital cameras can range in price from less than $50 to more than $4,000. Cameras with less than one megapixel are inexpensive, but they usually lack important features. Digital cameras with resolution in the four to ten megapixel range are capable of producing professional-quality images. These cameras are designed for amateur intermediate and professional photographers with intermediate skills, and will be rich with features that may take you a month of study and practice to discover.
Compact digital cameras are designed to provide a moderate number of features, stylish looks, and often fit easily in your pockets. If you care more about features like interchangeable lenses, flashes, and other accessories, you will most likely have to consider a dSLR (digital single lens reflex) camera which are more expensive but offer outstanding features.
Only the most serious amateur photographer will demand the flexibility of these cameras, and of course, you should expect them to be larger and heavier than compact or standard models. For example, they won't fit in your pocket. You will also need to devote more time and practice to learn how to use them.
Accessories
There are a number of accessories available for digital cameras: battery chargers, underwater housings, slave flashes, tripods,carrying cases, neck straps, conversion lenses, remote controls, and printers to name a few. Each of these accessories will add to the cost of your camera but may be worth it if makes taking good photos easier.
Memory
Most digital cameras include some form of memory, whether it's built into the camera or is part of a separate memory card. When you
purchase one, it is very important to purchase at least a 2 megabyte memory card or more. These memory cards will help you to make the most of the features of the camera. If you enjoy taking short video segments, any extra memory will make that task much easier. It's often better to think of your digital camera the same way you look at a computer; the more memory, the better.
Warranties
Most cameras come with a limited one-year warranty from the manufacturer that covers defects only. If you plan to take your camera on backroad trips , up mountains, on river rafting trips, extended camping trips or to sports events, you would be wise to purchase the extended warranty that is often offered at the register. If, on the other hand, you will only be using it around the home for birthday parties, then you may be able to make do with the standard warranty that comes with the camera. Remember, digital cameras are not very sturdy and are susceptible to the elements.

Monday, October 15, 2012

Camera Digital Technology - Sensors, Storage Space And Snapshot Sharpness

Camera digital technology: do you have to understand it to utilize it? Probably not, especially if you're using a consumer digital camera - a point-and-shoot - and you just want to get that holiday trip recorded for posterity...
On the other hand, it is quite useful to have a good grip on camera digital technology to get the best out of that little technological marvel!
For starters, it makes sense to know that the number of pictures you can take on your camera depends on the file format you select, and on your camera's storage capacity.
Camera digital technology generally works with two main formats, the JPG and the RAW file. The latter is for storing as much as possible original data per picture, to be adjusted later on a PC. The RAW format is of particular interest to professionals. RAW pictures often need nearly 10 times as much storage space as JPG files, so a casual photographer will generally choose to use JPG.
However, your camera might give you the option of selecting high quality JPG's or standard quality JPG's - the latter using less space, and mostly giving quite satisfactory results.
The camera will store the picture files on a card. A 256MB card can sometimes store more than 80 images of standard JPG size. If you're willing to spend more, new camera digital technology allows you to buy cards with 10 times more storage capacity.
Another aspect of camera digital technology which is useful to know about, is the way the images are captured. In stead of the film of well, film cameras, digital cameras have a silicon sensor with light-sensitive photosites (pixels) which capture the light information.
These sensors are often less precise than film when it comes to rendering detail in shadows and highlights. Camera digital technology therefore dictates that you should be careful not to "blow" your highlights. If they are not captured in the first place, you can't make any adjustments afterwards in your software processing.
To ensure you capture as much shadow and highlight detail as possible, and in a balanced way, camera digital technology offers you the use of a histogram. This handy tool is a little graph which indicates how the levels of brightness are distributed in an image. Many cameras show a histogram in real time, while you compose your image, giving you the opportunity to make exposure adjustments.
While digital camera lenses are essentially "old technology", it is useful to know that you can get excellent quality pictures from fairly inexpensive consumer cameras. This has once again to do with the sensor used in camera digital technology.
As the sensor in these point-and-shoots have a much smaller surface area than the 35mm film of a film camera, the former can get a much sharper and detailed image than a film camera with the same lens, due to the smaller focal area.
Camera digital technology has the major advantage of offering you stacks of opportunity to experiment with taking first-rate pictures, because you don't have to be concerned with the expenses relating to camera film.
So go out there and put the new camera digital technology to use!

Camera Digital Lenses - Choosing the Right Lenses For Your Style of Photography

Making Up Your Mind: SLR Camera Digital Lenses
 
There is such a large range of SLR Camera Digital Lenses that it can be quite difficult to know how to choose the right one for your style of photography. Here is a simple explanation of what to consider when attempting to select the right Digital Lenses for your SLR Camera.
Pick an SLR Digital Camera Brand
Why am I writing about digital cameras? Well before you can purchase Digital Lenses, you need to have either decided upon a brand of SLR Digital Camera or have already bought one. The reasoning for this is quite simple. Branded Digital Camera Lenses are not interchangeable between different brands of Digital Cameras. While some 3rd party lenses can come with interchangeable camera mounts, most of them don't.
Deciding on a Lens for your SLR Digital Camera
A logical process to consider when choosing lenses for your SLR Digital Camera is as follows:
1.      Choose the desired Focal Length
- A low focal length will allow you to take photographs which capture a wider image.
2.      Do you want a prime lens or zoom lens
- Prime lenses have a fixed focal length, which means you cannot zoom in and out. Zoom lenses allow you to get a close up to the object without having to physically move any closer to it.
3.      Select the desired maximum aperture
- A large aperture (low f/Stop number) allows lets more light into the camera which therefore allows you take better photographs in lower light and indoors.
4.      Branded lenses or third party lenses
- Branded lenses are the gold standard, especially if you are buying from a quality manufacturer like Nikon or Canon. However, 3rd party lenses have improved significantly over the years to now present an excellent and affordable alternative to accompany your SLR Digital Camera. If you are an enthusiast just beginning, it may be well worth starting with a good tamron or sigma lenses before deciding on how seriously you want to pursue photography.
5.      Google for online reviews
There are so many to choose from. As you might imagine, there are lots of people who are quite passionate about photography and are nice enough to provide their experiences with certain products.