Is it the case that a camera (be it a DSLR or a m4/3) tends to get sharper focus on objects within fairly close range compared to objects that are a bit farther away, say 5 yards/meters? Given that other parameters are equal (lighting, shutter speed, aperture, focusing method). This is something I've been noticing with my G5+Oly45.1.8 as well as my Rebel XSi+Tamron28-75/2.8. It seems difficult to get really sharp results when photographing a person who's a bit farther away. Not a moving person or anything like that.