By contrast (no pun intended), phase-detect AF uses a system of prisms ... focused if the eyes are crisp.) Other Nikon D7000 Live View autofocus modes are: Wide Area, designed for hand-held ...

For some reason, though, on some (but not all) Nikon bodies, the Sigma causes the camera's exposure system to overexpose by somewhere between two thirds of a stop and a full stop. The D7000 is one ...