My problem is: If you use these lenses, why use a Canon camera body? Well, yes, rt flashes and Magic Lantern, but beyond that?Ergonomics.
I agree, but then again I've never shot with a Nikon for a longer time and I'm inclined to believe millions of people *are* able to adjust to them :-> ... and the difference between a right-hand 60d/6d design vs. a "pro" dual-hand joystick 5d3/1dx is probably as large as towards another brand.
Still, there was something 'natural' about the Canon bodies when I was looking for a DSLR. Nikon somehow always confuses me. That said, Sony isn't all that great either. I wish my NEX-6 had a better menu structure, and an easier way to do exposure compensation. The A7(r) looks like it is massively better. However I'm not ready for a full-frame mirrorless... Yet.
OTOH, on that NEX, I'm using (old) Canon lenses on a third party body. How's that?
5D3, 5D2, Sony α6000, G16 | SY14 f/2.8, 24 f/2.8, 35 f/2, Ʃ35 f/1.4A, 50 f/1.8 I, Ʃ50 f/1.4 EX, 100L Macro, 17-40L, 24-105L, 70-200 f/2.8L IS II, 1.4x II, 2.0x III, 70-300L | E-mount: SY12 f/2, 35 F1.8 OSS, 16-70 ZA OSS, 55-210 OSS, SY 300 F6.3 ED UMC CS, MB Speed Booster and Canon FD(n) & FL lenses