Kristofgss said:
Every image coming out of the 7d II looks as if it has a diffusion filter over it. It's not front or backfocus, it's as if the sensor moves or the image is not correctly converted from the camera sensor to image. And it's not user error, we tried different users and direct comparison with 600D and 7D mark I camera. Both the 600D and 7D mark I are razor sharp (with a 24-105 F4L) and the 7D mark II keeps giving diffused images. It has already been sent to canon and came back with a "software reinstalled" notice, but no improvement of the image quality.
I upgraded from a 600d to a 7dii, and I half know what you mean. I'd say that I need a faster shutter-speed with the 7dii (maybe because it's heavier?), but I wouldn't say it's at all fuzzy. If I drop the ss to what I used with the 600d, then I get fuzzy. I would also say that it's making me much more aware of exactly where I put the focus. Out of focus looks awful, and I'm now much more aware of this (but I wouldn't say the 7dii was worse at focussing).
It's difficult to say what the focus hit rate is. If I'm focussing on a kestrel, and it's flying past, I hardly expect to get a shot when it's at speed. The AF system works very well when the bird's filling the frame, and really not so well if it's small. But that's to be expected, right? If the bird is 50% or more of the frame, I end up with endless in focus shots (of wing tips, eyes, bodies, etc etc), even if its not exactly the part of the bird I'd like the camera to focus on.
Surfing photos are all perfect. No problems at all.
People shots with the Sigma 35 1.4 are more approximate. At 1.4 I increasingly feel like I'm taking my chances (and sometimes a single point on the eye seems to yield an in focus shoulder, for reasons I don't understand).
Take a look: https://www.flickr.com/photos/michaelhooper/