Hi everyone,
Seeing a lot of threads saying good words about the EOS 6D (original). I looked up DxOMark and saw that those sensor measurements are really good.
However, I'm hearing a wide gamut of opinions when it comes down to autofocus. I would use it to shoot subjects that are moving. I may not use it for sports (my EOS 7D can do it), but I will be shooting moving people, which kind of concerns me.
Any EOS 6D users can give their opinion on the AF speed and subject tracking? Thanks!
Bottom line, the 6D has the most sensitive center AF point of any Canon DSLR I've tried- this includes 1D mIV/X, 5DS R, 5D III cameras, for low light it locks on nearly anything.
It's a very fast AF system too overall, tracking very solid (tenacious) and reliable, again using the center AF point. It's surrounding points aren't nearly as sensitive, but again you are comparing those to the very best AF point I've used.
With a quick focusing lens (like the Sigma 100-400mm (C) f/5-6.3), the 6D has no problem tracking on the center point for moving subjects. Burst rates border 5fps, so its no speed demon, however pick your shots and do single bursts, and you can get some winners.
*edit: The main variable in the differences you see in testimony come down to lens choice. The key, is getting a lens that interacts with the camera quickly and immediately. I've gone through several telephoto lenses (more than I want to admit) trying to find the best for consistent, fast, and reliable tracking. Try a few telephoto choices out on it, don't be afraid to try Sigma either. Tamron are glitchy and unreliable on both my Nikon and Canon systems and I don't recommend them for BIF or action photography. Canon and Sigma are your best choices. The lens I recommended is a proven performer time and again on multiple bodies and two systems and works flawlessly on the 6D. Go for the higher end Sigma lenses or L Canon glass (the 100-400 or f/2.8 models in second generation for example).