I'm sooo disappointed.... I borrowed a lens from a friend for my Nikon D7000. The lens is a 50mm 1.8 AF ... thats about all I know about it cause I'm very new to photography. Get to the point Paul... well, I took 350 shots, of which about 300 are out of focus. The subect was a baby, close up, 2-4 feet away, indoors, average lighting. Mode- AUTO, AF, no flash... Why are so many shots out of focus? Is is a depth of field thing??. The lens seems to mechanically lock (apperture dial on outer lens body, moves from 1.8 to 22) at 2.8, and the camera displays an EE when ever outside the mechanical lock i.e. any setting other than 2.8. Looking for advise on how to pull my focus back in..??. Yes the auto focus was working / moving.