What is front focussing and what s this about the EOS 10D having this problem?
Ideally when you use your camera to autofocus on something the item you re focussing on should be sharply in focus. Simple enough. But if the camera consistently and erroneously brings the plane of focus ahead of the film surface (or image sensor surface on a digital camera) then you ve got a problem, since everything will look slightly out of focus. Unfortunately it appears that many samples of the EOS 10D digital camera have this problem. Not all do, and many cameras which seem not to be producing sharp results are probably not being used correctly. But some do. For more information on the problem and a simple way to test for it have a look at this Photo.net article by Bob Atkins.
