[Brightcolours]

Excellent points, Brightcolours!


Is that also the reason why Canon has 85/1.2 and Nikon don't?

Probably, because 85mm f1.2 is prestige, and I can't imagine Nikon not doing it if they easily could.

The 1st Canon 85mm f1.2 was on FD. I don't know too much about this lens, but its back element fills the mount. My guess is that it is a bit narrow there too, the lens does seem to "swirl" quite heavily anyway.

 

The EF versions have a much larger back element, so big that they cut away a part to make room for the lens contacts (similar to the 50mm f1.0 L USM).



 

I recall Zeiss making such a lens for Contax years ago in a limited edition (wooden case and everything, so probably not much of those lenses have seen some film surfaces behind them).


Still, not my cup of tea, those large apertures. For me f/1.4 is alright, I learnt how to handle those and guess f/1.2 is much harder for getting the focus right. At least with Nikon AF, I think Canon makes better ones.

On most bodies the focussing accuracy with the 85mm f1.2 L USM (II) is fine, but the lens is much slower to focus than your Nikkor 85mm f1.4. And 85mm f1.4 of course is pretty big, aperture wise!