It is my understanding that in regular conditions when using an SLR camera (No live-view) , the camera lifts the mirror to let the light hit the sensor. But while in Live-View, the mirror is already locked-up, so, at the time you press the shutter button, why the need to lower the mirror, and immediately lift it again just before exposure?
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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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Normally I use lens-hoods on every of my glasses (flairlight blocker, lens protection). Some days ago a bought the Canon EF 40mm STM (Panca...
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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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I encounter a contradiction. Many resources state that a digital sensor are unsensitive to UV light. Even wikipedia, "However, newer ph...
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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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