gabebalazs wrote in post #17893247
I think
technically the all-11-AF-points mode should track in AI Servo mode, meaning you start with the center point and if the subject moves off the center point, the other AF point(s) take over (whichever is covering the subject.) Now, I say "technically" because it does not work as well in the 6D as in other Canons where most or all the off center points are cross type. Plus there are only 11 AF points so there will be a relatively small area covered and there may even be gaps between the AF points.
Yes this is the way it should work in AI Servo, with all points selected. I shoot a 50D and this is how I shoot with that. I have BBF with focus removed from the shutter button, AI Servo and all points selected. I can use this sa if it were Single Shot just by pressing the focus button, then release the button to lock focus. Since the system isn't at that point tracking it only uses the center AF point. If I have a moving subject then I just hold the button, and it tracks as normal for AI Servo.
I would never use AI Focus, it's rubbish, and can never seem to make up its mind. I used to have to use it all the time with my 300D, as that was the only thing you could select. It pretty much stayed in One Shot mode, I don't think I ever saw it change to AI Servo. All AI Focus is supposed to do is decide if the subject is moving or stationary, and automatically select One Shot or AI Servo, something it seemed incapable of doing.
Alan
