Quote Originally Posted by Joel Bookhammer
So now to the question would a camera body that is deamed to have a faster AF system allow the 85 1.2 to focus on the subject quicker?

I don't know. My best guess is that the slowness is an issue of the 85mm f/1.2 lens itself in this case. Another issue aside from focus speed is accuracy. I would guess that a different body (e.g. 1D4) would be more accurate -- especially if using more than just the center point.