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The one question I still have and will need the manual to figure out is how the points can be restricted. With the previous 45pt system you could set it to just use 19pts and I think even less like 5 or something. There is a line seen in the menu screenshots that seems to be for this. Chuck Westfall in some video (can't recall where, either on engadget or planet5D) said you can limit the camera to just use x-type depending on the lens but not sure if you can limit the points in other ways. We do know it is basically like the 7D with the different types of modes: all pts, zone, expansion(2 options 4 or 8 pts), and spot. Also don't fully understand if it can track in expansion mode across the entire range. i.e. will the initial point selected in AF expansion (AI servo of course) hand off to another and change it to the center of the expansion and then keep passing off as the subject moves across the frame? CF III 8-3 does this on the 1D4 but the 7D can't do this. The 7D only passes off in "all points" and AF zone modes but the problem with these two modes is they always look for the closest thing to focus on. AF expansion mode is better because it tries to stay with the initial subject. I think the 1DX will be the best in this because of its colour/face tracking mode tied in with its better metering system. Maybe this will be the one thing the 5D3 won't have when it comes to the AF compared to 1DX. Only the manuals will let us know.