Archive for July 11, 2007

Using a telephoto lens to get in close to the action or sneak up on a subject from a discreet distance is terrifically exciting, and can yield great pictures. But the high magnification of long tele and zoom lenses accentuates the effects of camera shake caused by your inability to hold the camera and lens absolutely still. The effects of wind, moving or shaking floors, residual vibration from camera mirrors flipping up just prior to exposure, atmospheric haze, and heat waves can also add problems.

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Digital photos are computer files. They are stored either on the camera memory or on a computer hard disk. Like any other computer file digital photos are saved in well known formats. One of those standard formats is known as JPEG. Here is some useful information on JPEG files.

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