Thanks Neuro, there goes one of my last reasons against the 1DX ;-)
I used a 5Dc with the EG-s screen for years! and it was perfect but I dont miss it with the 5D3 AF. Granted, I'd like to have both the EG-S and the 5D3 AF. Even the Focus confirmation is 10x more accurate with manual lenses on all AF points.
Yeah, I was wondering whether the AF was good enough to make up for the lack of an EG-S equivalent, but...
As for reach, Just get an new M-III tele-converter but canon is lacking in the wide department but If you that serious to buy a 2000$ 14-24, why not look into the Zeiss 15mm?
I am seriously considering the Zeiss 21mm, but I might get a 17-40 first in order to determine which focal length I like best.
If your in M mode, I don't see a need for Expo-comp because there must be a particular reason for the person selecting they're aperture or shutter speed. The Auto ISO works great on my 5D3 In M mode. Granted, I would appreciate a zoom histogram.
The expo-comp in manual with auto iso would bias the automatically selected iso and leave the time and aperture alone.
But you must appreciate that canon DOES have a 100-400mm, canon DOES have the 600EX-RT, and canon DOES have the Best AF on the Market, The fact that canon DOES allow you to even change focusing screens in the first place and so many things that make this platform unique.
Oh yes, I've got my personal prime trinity 35L, 100L, 135L and am very happy them, plus some more stuff that works great, too! If all I had was a 28-135, and I didn't care about the 135L, which is my favorite lens, I might already have a D800e, because what I don't really care for are anti-aliasing filters.
Speaking of AA filters, put that on the list of things for Canon to improve, i.e. optionally get rid of...