Lame-Duck wrote:
terpfan...I own a 7DII and a full frame 5DIII. I shoot pretty much all wildlife. I like the 7DII for the additional reach (1.6 crop factor), but prefer the full frame for image IQ. The noise factor is reduced substantially with the 5DIII, and I prefer the images I get with the full frame. If you can, I'd recommend keeping and shooting with both cameras.
I have the 7DII and the original 6D full frame. The IQ is better on the 6D and Hi ISO performance. My biggest complaint on the 6D is the focus system. The focus system is better on the new 6DII but in reality not much because you have all of the focus points tightly in the center. That means you still have to focus and recompose most of the time. If your coming from the 7DII which has a better focus system and wider coverage, you'll probably be disappointed with any of the 6D's focusing system. If I were to choose between a 6DII or 5DIII, I'd take the 5DIII because of the wider spread on the focus points. Focus system is more important to me than any other feature on a camera because if a shot is out of focus, nothing else will matter. High ISO performance, FPS, IQ and everything else becomes irrelevant when a shot is out of focus. Hindsight, I should've bought the 5DIII instead of the 6D at the time. Don't get me wrong, I still love the IQ and high ISO performance of the 6D but spoiled with the 7DII focus system.