Originally Posted by
neuroanatomist
Is it me, or is that is a seriously weak AF system? Point spread no better than the 5DII, two more selectable points but four fewer points in terms of Servo tracking (which wasn't the 5DII's strong point anyway). Sure, the -3 EV is nice, but not salvation by any means given the frequency most users shoot in light that low (my 5DII, spec'd to -0.5 EV, could AF in light that needed ISO 25600).
Only one cross-type sensor, and that one not even a dual cross.
Now that the 60D's 9 cross-type AF with center f/2.8 dual cross has trickled down to the T4i/650D, IMO the Rebel line has a better AF system than the 6D.