Quote:What? You can't rate the optical performance on FF, but you can on 1.6× crop? :blink: Don't understand. Also, what your scale of "perfection" might be and which lens does fullfill all demands?
I will provide a rating on the 5Ds R.
The point is that I need a broader guidance first. The Sigma 24mm Art hasn't received a rating either.
This is, of course, much easier on the 7D II - after all 20mp vs 15mp is just an evolution whereas the 50mp vs 20mp is a bit more than that. Don't you agree ?
"Perfection" doesn't exist. We'll provide a 5* rating for the cream of the cappuccino - thus the best 5% max.
The Canon got a 4* rating which is darn good, don't you think ? However, this is a 3000$ lens which doesn't perform any better than the Sigma 8-16mm. Thus it is a little hard to be overly enthusiastic, don't you think ?
Klaus