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But realistically, how often are you going to find yourself shootin in similar lighting condition? Is Canon marketing this camera to the spelunking/caving/potholing crowd? If so, they'll need a better sealing on that 6D.
Maybe I'm just jaded, but it feels more like a gimmick that Canon added to take the focus away from the seemingly underspecced (compared to the competition) AF system.
My question is, how useful is it really? Am I the only one who thinks that a more reliable cross type outer AF points would be more useful than a single super sensitive center AF?
Not often that extreme. Usually I shoot what I can see in the viewfinder. - but its great to have it for x-tremes. I guess -2 EV ist still great, too. But with the common -0,5 EV I still could see my motiv and tried to focus manuel, because the AF was hunting and useless. (I shoot weddings at AL for example). Even in dark holes and rain I never got a problem in 5D IIs sealing.
I prefere having one cross type and some non cross type AF points that work instead of having a couple of cross type ones that do not work reliable. In my experience the new non cross type outer AF points of 6D worked more reliable than my 5D II ones. Of course I would have loved to have this -3 EV on all points and all of them cross type. But to be honest: I never used other AF points than the center one regulary ...