Well, I have officially cancelled my 1DsMKIII order until a LOT more info is available and a LOT more images are out there for review. My dealer was not happy, but @ $8,000., come on now, you HAVE to be blown away, not left wondering.
I have to be straight up honest, I took this action because I also am NOT thrilled with the images from the 1DMKIII either ... and I've been working with this camera for some time now shooting thousands of wedding images.
In truth, my heart sunk when I got home from shooting my first wedding with it. "WTF" came to mind when faced with so many images that needed so much post attention. "Well", I said to myself, "you need to set this all up better, after all it is a different camera". Many months later, much twiddling with settings and post techniques, I'm still NOT a happy guy. Others may be pleased as punch, I am NOT. The stuff is okay, but not what I've come to expect from Canon. There's just a smeary softness to the images shot in low light with fast L glass. Makes me wonder if Canon over AA filtered this camera also? I don't buy into "all is well" because people post nice shots taken in nice light ... with God knows how much post done ... I don't have that luxury.
I sold my 5D and 1DsMKII in anticipation of these two new cameras, now I have to figure out what to do before next wedding season starts. I need two really fast AF cameras. At least one has to have dual memory card slots for supreme back-up of "one chance" shots.
The thought of switching back to Nikon makes me cringe. All this L glass sitting there begging for a better camera. It's enough to make you lose your mind.