Ask the Tech Guy:
Choosing a Digital Camera

It is predicted that this year digital cameras will outsell film cameras. Although they look very similar, their internal processes are quite different. To preserve an image, film cameras use a chemical process, while digital cameras utilize an electronic sensor called a CCD (Charge-Coupled Device).

The two main categories of digital cameras include the point-and-shoot and SLR (Single Lens Reflex) varieties. The point-and-shoot cameras have a fixed lens and display their images on an LCD (Liquid Crystal Display). SLR cameras have interchangeable lenses while an image is observed through the viewfinder.

For a novice digital photographer, the point-and-shoot cameras are generally recommended because they are easier to use and are usually less expensive. These cameras also sport a host of manual features as well as numerous automatic picture-taking modes.

Digital images can be touched-up if necessary with photo-editing software, printed, emailed, uploaded to Web sites, and more. Some printers allow cameras to be connected to them directly without the use of a PC (Personal Computer). Some cameras also have an optional dock that connects to your PC which adds features such as showing a slideshow on your TV with a remote control while re-charging the camera batteries.

Digital cameras have the advantage over their film counterparts whereas you can take a picture and immediately just delete it if you are not satisfied with the results. You no longer have to develop pictures that you are not going to keep anyway. Digital cameras store their images on internal memory or flash memory cards. To free-up memory, you can download the stored images unto the hard drive of your PC, or just delete the unwanted pictures from your camera.

The most prominently displayed feature of a digital camera is its number of megapixels (MP) which is a measure of its resolution. Each megapixel equals approximately one million pixels. Higher megapixels add to the price of the camera, and increase the size of the image and file size.

There is a relationship between the amount of megapixels and the size of the picture. Most cameras allow you to turn-down the resolution for smaller images and file sizes. This is convenient where small file size is important for certain uses such as email or saving space in the camera’s memory. However, some photographers keep the resolution at a higher setting, just in case they decide to print the pictures later. Generally, a 2MP image can yield a high quality 4 x 6” print, while 4MP can produce an 8 x 10”.

Another important feature to watch for is the zoom capability. Optical zoom is by far the most commonly used. Basically, optical zoom changes the focal length and magnifies the subject. Digital zoom crops the subject, and then magnifies that area, which gives a much less accurate rendering. Optical zoom provides the finest and most clear results.

Many digital cameras offer additional features such as video, sound, and more. However, think of these as bonus features, and consider the camera for its primary function – taking high-quality digital photographs. After all, this is exactly where the manufacturer has placed most of its quality and resources.

Bottom Line: With such a vast number of cameras on the market, how do you narrow down the selection process? I will offer a few suggestions to get you started. Currently, there are several highly-rated cameras that I am familiar with. Here at the Oasis, we like the HP Photosmart R717 for its many useful features, extensive help menus, ease of use, and picture quality. A few other contenders would be the Fujifilm FinePix F10, and the Nikon Coolpix 7900.

Remember, though, select a camera that works best for you - relevant to your needs and taste. Always try a camera out first if possible before making the purchase. Does it meet your expectations? Is it easy to operate? Are you comfortable with the size, shape, weight, and controls? A camera is of little value if it just sits on the shelf because it is too complex or the controls are too cumbersome to manipulate comfortably. Make sure the camera meets your specifications, but that it is also right – for you! Do you have to forfeit your film camera once you hop on the digital bandwagon? Of course not, but more photographers are increasing their use of digital cameras once they realize just how easy and practical they are to use.

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