Focusing Problems I just bought the Canon 20d. I shot a wedding with it two weeks ago, and really liked how it performed in low light. However, I noticed a lot of my photos from the low lit reception came back out of focus. (The outdoor ceremony shots were fine). I noticed 3 issues with the images: 1-The main subject, which often was dead center and took up 1/2 to 2/3 of the frame, was often NOT in focus. Rather, the camera selected some point way off to one side or off in the distance somewhere to focus on. 2-Some photos had the subject in focus and the background soft. This is fine, however when i looked where the focusing point was in the Canon Utility program, it said that the focusing point it chose was actually NOT the in-focus subject, rather something else that was not in focus. 3-Some images came back perfect focus with deep DOF, but when I looked where the AF point was, there were NONE lit up. I was using P mode, 400 ISO, evaluative metering, an external 580 flash, single frame shooting, and One Shot mode. I also used both a 17-35mm 2.8 and a 28-70mm 2.8 Canon lenses. The reception hall was fairly low light, and sometimes the subject was moving, and sometimes it was stationary. Any ideas why my focusing seems to be all over the map? Thanks!

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