Jimbobp Offline Image Upload: Off
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I'm concerned becuase I used it in AI servo mode on a 300 F2.8 L IS shooting a soccer game and the subject was not sharp. Blades of grass were sharp but not the subject. I'm only going by experience. I had the 40 and 50D's and their AI servo performance with all points selected sucked. And by sucked I mean that the subject was in the middle of the image, high contrast area (white jersey, large dark numbers) and the sharpest thing in the image was the guy in the fourth row up on the edge of the image. This was consistent and sent the bodies back to Canon and they agreed there were problems. I ended not trusting the AI servo performance and keeping the 1DMKII. I've had some issues with the 5DMKII, which is why I just recently acquired a 1DSMKII. I haven't had time to run a lot of tests on the 7D and frankly should not have to, but until I do, given the history of the gear I've had, I will reserve judgement. Yes I like the 1DMKIII and yes I experience issues on occasion where an image is soft or out of foucs when shooting a series, but I can live with that given the number of images I take that are fine.
So, to answer your question, I am concerned just based upon the limited useage of it and the experience I've had with recent camera bodies and AF. I am extremely hopeful it will be fine and I can resolve the source of the problem. becuase I love the viewfinder, the handling, size, etc. and wanted it enough to move the 1DMKII (which was hard for me to do.....).
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