Originally posted by Warped I rarely use a tripod, so know very little about plates and that kind of thing.
All I can say is that I borrowed a friends Manfrotto carbon fibre tripod and it's got the standard plate that she uses for her Canon 5D and Pentax K20D (same looking plate as the ones on my cheap little aluminium tripods) and that works fine with the 645D.
You know, I have a Manfrotto carbon fibre tripod that is supposed to be good for up to 15 lbs. BUT, I have tell you though that when I mount my 645D on it, even with the mirror up, I can see the whole unit vibrate just a tad with a shutter motion. It shook enough that it was apparent to the naked eyes. So now I feel like having to rest my hand gently on the camera/tripod unit itself when taking a shot.
I think that I need a better tripod. I realize this thread is for the plates, but I thought I would throw in my 10 yen worth of opinion.