All the cameras that I'm aware of move lens elements to obtain focus, although I'm not familiar with the workings of in-phone cameras. It occurred to me this morning that you could also focus by moving the sensor in or out. Just curious if a) it's really possible, b) it has any advantages, c) it's been done?
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Why is the front element of a telephoto lens larger than a wide angle lens?
A wide angle lens has a wide angle of view, therefore it would make sense that the front of the lens would also be wide. A telephoto lens ha...
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A wide angle lens has a wide angle of view, therefore it would make sense that the front of the lens would also be wide. A telephoto lens ha...
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I know that a real gray card is the best thing to use to determine exposure. But I'd like to know if there are other naturally available...
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Nikon specifically recommends not breathing on the glass elements to clean them as harmful acids in the breath can damage the coatings on t...
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I've read a lot around this site that an ideal quality of the lens is achieved when using f-stop roughly 2 stops slower than the fastest...
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