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In digital cameras and
digital video recording devices, a
zoom lens
let you to select any focal length within the len's range. The lens
changes the angle of view and its magnifying power based on the zooming range selected.
Zooming out gives the photographer a
wide-angle view that captures a wide expanse of a scene. When you zoom in, the
field of view narrows and you can focus on small portions of the scene without having to physically
moving closer.
See "A
Quick Guide to Digital Cameras" in the
Quick Reference section of
Webopedia.
See also Megapixel.net for news, reviews
and a active community for digital camera and photography enthusiasts.
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 Digital Content Producer Magazine
Film & video production in a multi-platform world.
Digital Video: Why Digital Video?
The shortest answer to the question "Why digital video?" is "Because analog video is dead." This isn't advertising hyperbole, its a simple fact. It may take a few years for analog cameras to completely expire, but their demise is foreordained.
Webopedia's Quick Reference: The Digital Camera Picture
If you can't keep up with advances in digital camera, you're not alone. We help you make sense of megapixels, zero in on the zooms (digital, optical and total) and delve into everything from price points to paper to printers.
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digital cameradigital photography digital zoom optical resolution zoom zoomed video
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zoom lens Products :
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9.95One-Touch Manual Focus and Zoom Multi-Coated Lens Surface Macro Capability Automatic Aperture Dimensions: 3.85 x 2.5 inches (9.8 x 6.4 cm) / Weight: 1... |
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209.0059.1 in. Digital Telephoto Lens Macro Lens for Close-Up Pictures of Small Subjects, Auto and Manual Focus, Tele-Macro Function to Make Your Subject St... |
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9978.99Fix the Canon EF 600 mm f/4L IS USM Super Telephoto Lens to your camera and capture high-quality close-up shots. The lens features one fluorite elemen... |
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19.95One-Touch Manual Focus and Zoom Multi-Coated Lens Surface Macro Capability Automatic Aperture Dimensions: 3.85 x 2.5 inches (9.8 x 6.4 cm) / Weight: 1... |
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488.95Equipped with Sigma's own unique OS (Optical Stabilizer) technology Four SLD elements and three Aspherical lenses provide high image quality throughou... |
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