(We measured about 3/4 EV falloff at wide-angle and about 1/2 EV at telephoto when we tested the same lens on SLRgear.) For our Indoor Portrait scene test, the Nikon D5100's flash required +1.0 ...
The Nikon D5100 includes live view capability with one ... The point of ideal focus is found by moving the lens elements back and forth and determining whether the contrast signal gets stronger ...