Interesting discussion! With wildlife photography, cropping is often necessary but more MP may not always help. When an animal is far away, there could be distortion due to heat waves from the ground. So more MP would just give you a more detailed image of a blurry subject. Also more MP always means more noise, and with wildlife you are quite often shooting at high ISO to get enough shutter speed. Speaking of speed, my understanding with high MP sensors is that you need a faster shutter speed to take advantage of the inherent sharpness. So the high ISO required to do that could end up working against you. I'd be interested in other people's thoughts on this.

Quote Originally Posted by clemmb View Post
I would love to have the latest and greatest but choose to spend my money on glass. What is more important is the lens you use and the technique.
Just my thoughts.
Glass is definitely important! But if you want a camera upgrade, let me know! I have a 1DX II that is looking for a good home