I've always thought that shutters were composed of two vertical curtains that moved along the sensor in order to expose it (at least for most DSLRs). Recently I've bought a Pentax K1000 that ...
I understand that in a camera the diameter of shutter opening — the aperture — controls how much light comes in, and this affects the resulting exposure. But I don't understand why, in a digital ...
I was just reading the question How many actuations are "too many actuations"? and trying to figure out what a shutter "actuation" actually is. The only thing I can guess is that it's the number of ...