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What is Lens?
Published  07/8/2011 | Computer Encyclopedia Page 6 | Unrated
What is Lens?
The lens is one of the most important and expensive parts of a camera, and often makes the difference between a great photograph and a photograph. A camera may use a single lens, or a combination of lenses, which might be attached to the camera body, or detachable. Lenses are of many types, depending on what is being shot. Macro lenses are used to shoot at very small distances; telephoto lenses are suitable for objects at large distances. Wide-angle lenses (like the fisheye lens) are used for situations that need a wider angle of vision. Another category is the zoom lens, whose focal length can be varied, and is most commonly seen in point-and-shoot digital cameras.
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