It's a bit of a strange discussion ;-)
I still have the Leica 100-400mm f/4.5-6.3 OIS on my desk. Or in other words - a 200-800mm f/9-12.6 - and it is capable of taking very nice pictures. ;-)
A 600mm f/11 FF prime will be better still. If I was Canon I would have designed it to f/8 but then let's see what they'll come up with. It'll be exciting in any case.
I still have the Leica 100-400mm f/4.5-6.3 OIS on my desk. Or in other words - a 200-800mm f/9-12.6 - and it is capable of taking very nice pictures. ;-)
A 600mm f/11 FF prime will be better still. If I was Canon I would have designed it to f/8 but then let's see what they'll come up with. It'll be exciting in any case.
Chief Editor - opticallimits.com
Doing all things Canon, MFT, Sony and Fuji
Doing all things Canon, MFT, Sony and Fuji