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The lens may be the most important part of a camera, because it forms and
focuses photographic images and also plays a key role in the composition
and perspective of these images. A
filter,
affixed in front of a
camera lens, can help protect the lens from damage. Some filters
are used to alter the reality of a photographed scene.
Many different types of lenses are available for both film cameras and
digital cameras. To keep the price affordable, point and shoot,
auto focus cameras are equipped with a fixed lens, commonly with zoom
capability so focal length can be varied. More expensive cameras,
such as SLR models, can accept interchangeable lenses. While
changing lenses may be somewhat inconvenient, better image qualities can
be achieved. For SLR cameras, you can choose standard fixed or zoom
lenses, as well as wide-angle, macro, or telephoto lenses. Each lens
has its own particular benefits. Versatile, standard lenses are used
for photographing anything from landscapes to portraits. Wide angle
lenses or wide-angle zoom lenses are used to take in a wider view.
They will help you include more of a scene in your image.
Macro lenses are used for close-up photos or magnified images.
Telephoto lenses let you zoom in close to a faraway object. When
choosing a lens, remember that focal length is the key to image character.
Check the camera lens manufacturer sites for lens specifications and
features. All major camera manufacturers supply their own branded
camera lenses. Other leading camera lens manufacturers include
Tamron and
Sigma.
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Camera Lenses - Camera Lens Selection Guide
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