I've tried 2 bodies, both had AF problem.
I've tested with different lenses and in different situations to make sure its camera, not me. The first just failed to focus in most situations, whereas the second had some days not in a mood to focus, the other days it was focusing just fine. After my son's birthday, I've found all images were not in focus, finally I gave up and got 40D. I must admit 450D IQ is the best, even better then 40D, but OOF pictures is a big disappointment. I had NO OOF images so far with 40D at all.
Problems:
AF.
I've tested with different lenses and in different situations to make sure its camera, not me. The first just failed to focus in most situations, whereas the second had some days not in a mood to focus, the other days it was focusing just fine. After my son's birthday, I've found all images were not in focus, finally I gave up and got 40D. I must admit 450D IQ is the best, even better then 40D, but OOF pictures is a big disappointment. I had NO OOF images so far with 40D at all.
Problems:
AF.