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What is the difference between a 200mm lens and a 20 times lens?
It depends on the actual focal length. For a 35 mm format lens, 200 mm is about 4x magnification, to get 20x you'd need a 1000 mm lens. For smaller formats, such as 8 mm or a camcorder, find the...
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What is the difference between a Fresnel lens and a magnifying lens?
Fresnel lens is much thinner, larger, and flatter, and captures more oblique light from a light source, thus allowing lighthouses to be visible over much greater distances.
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What is the difference between a zoom lens and a fixed lens?
A zoom lens you can go from one focal length to another such as 70-200mm and a fixed is one focal length such as 50mm
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What is the difference between the human eye lens and a camera lens?
A human eye does the same as a camera lens, but instead, it captures the information in the retina, and sends if through the optic nerve. A camera lens does the same, but, using the light, it sends...
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What is the difference between converging lens and diverging lens?
converging lens show virtual and real images while diverging shows virtual images.