I think I found a candidate for MFA on the 7D. My 50mm f1.4 appears to be front focusing by quite a bit. For this image of my cat the center focus point was on the cat's face. The cat is clearly not in focus, but the chair, which is about 2ft closer, appears to be sharply in focus. The cat's face and the chair are 100% crops. High ISO noise aside, the focus is clearly off. I noticed it earlier when I was trying some macros with the 50mm and the 12mm extension. The center aiming point was always slightly off and the sharpest area was just before it.
Full scene (reduced, of course).
100% crops.
