^^ One shot or servo? Looks nice and sharp.
I did some more tests after resetting the camera. Here is the subject, the lens cap from 24-70mm. Lens used 24-70mm f2.8 II which is fast to AF. In one shot mode, I can AF using any point but in AI servo mode, the center top most point (horizontal camera position) just refuses to AF. It keeps raking the lens back and forth. If I move AF point to the one left/right to center top most, camera locks AF. So not sure why center top most point won't work.
As you see one shot mode, it is perfect. in AI servo mode same shot but using top most center no AF at all. With center point or side points AI servo, it locks fine.
Would some 6d owner be kind enough to try same case? Thanks in advance.