Upload & Sell: Off
From going through the forums of several different photog site besides these, it's seems there are far more people that only use the center point. Why this is, escapes me.
From what I've read, focus and recompose is a terrible way to shoot people/ portraits, or much less anything that needs critical focus (obviously not landscapes).
But beyond that, I'd like to know how the outperform points act. I've never had an issue with my xsi/t2i/7d focusing with the outer points. But now as I'm examining upgrading to full frame, the 5d 2s horrible outer focus points are more front and center as an issue.
I tried the mark in in the shop and yup, those outer points are pretty lame, missing focus in trivial situations. If the 6d is anything like that,, that then it's a non starter- especially for 2k +. That's just a rip off in my opinion. To make it even worse the t4is full cross setup works very very well.
I do portrait work, and center point only camera for me is pretty useless. Basically, if those outer points can't even compete with a rebel, then I'm not buying into canons marketing BS.
Canon got caught with their lazy pants down, trying to rationalize the immense lack of features on the cameras market position. That's what I think.
But please, more input on the OUTER points people, thanks
People (like me) use the center point because of speed and composition. Its faster and more accurate (imo) to focus on your target and refresh your composition, than switching through AF-points (if you have many) or fixing your composition to whichever AF point your camera offers to you. If doing portraits the turn out of focal plain by recomposing may be one or two millimeters imo (If you are used and trained to recompose) using a 100mm lens.
But I have to admit, I personally I never used a camera that offered reliable outer points. There was just no camera or need for it.
6Ds outer points appeared to be more reliable than 5D IIs did (what does not answer your question because I can not compare with the cameras you mentioned), but I am pretty sure I will not use them often anyway. Outer AF points are used by me, if I shoot a previous fixed set using a tripod and having all time to shoot. That does not happen often to me.
Having a 59-61 (reliable) AF point camera I guess I would use them all and let the job of focusing to the camera when (e.g.) shooting BIF. Else I would use the center point and maybe the surrounding cluster and still recompose in 99%.