But lacks of speed in actionphotography. I was amazed to get each bird with the 7D or the 5D Mark 3. Only the 6D was often unable to follow the bird, most of the shots were unsharp. I often lost contact with the center AF-point.
You were successful in keeping track with single point af on the 7d or 5d3? In my experience (at least on the 60d) single-point af for tracking is bound to loose focus often, thus the main advantage of the 7d/5d3 are simply more af points.But lacks of speed in Our teachers say, that the 7D Mark 2 starts selling in the end of spring 2013 (in Germany and Austria). But it will be expensive.
My guess it'll be the same price as the 6d then - just below $2000, but with the 7d2 advantage of better af and crop so you don't need super-tele primes. It really seems that Canon would like you to buy two camera bodies...
We shot eagles, owls and hawks at starting and in passing an feedingdummy. There the AF workes perfect. I just got 1 semisharp picture out of 20 from the 6D, all other were unsharp. Other participants had an better output, 3-5 out of 20.
But one "plus" for the 6D: The AF of the
The 7D Mark 2 should be a little bit cheaper as the 5D Mark 3.