I'm wondering how the mirror in a DSLR or SLR camera is flipped up (and back down again) when a photo is taken.
Is this mirror typically actuated by a motor, magnet, spring and gravity, or something else? If there are any specific examples, I'd also love to see how this mechanism actually looks.
Answer
Today, most DSLR mirrors are operated by a dedicated motor. Return springs are used to move the mirror back into position. Some DSLR's have two mirror motors. One to raise and one for return. Here is a video that shows how the Canon EOS 7D Mark II operates: https://www.youtube.com/watch?v=kLU5oygrkpw
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