Hey, are they playing on fake turf? I would guess so. Wait until you have some hot days with the heat waves coming off the turf... the 1DIII will be all over the place with focus, as will pretty well any AF system, but I found the 1DIII way more sensitive to this.
You got a lot of great tips in this thread. Have you been implementing any of the suggestions? Of the things that came to mind, I would recommend against using the outermost AF points for AI Servo. Just never seemed to be as consistent IMO from my experience. Also, if possible, set the exposure manually. Pick an ISO and a high enough shutter speed. The higher the better really. If they\'re going from shade to sun a lot, then auto can be more convenient, but for anything inside, with even light, there is zero reason to shoot on anything other than manual. Keep in mind though, with mercury vapor type lighting, as well as some fluorescents, you\'ll get WB and brightness flicker because the shutter speed is catching the lights at various stages in their on-off cycle. It sucks, but that\'s the way it is. Either you freeze the action but get the WB and brightness variations, or you\'re at too slow of a shutter speed.
You should also do a test: the 300 f/4L IS vs. the 70-200 f/2.8L IS II with the 1.4x teleconverter. I have the 300, and it\'s an OK but not great lens. There is a high probability you\'ll actually get better results with the zoom and teleconverter... sharper lens, faster AF.
Mar 17, 2012 at 12:55 AM
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