Could the new lenses fit a medium format Canon??
You're probably both correct. Looking at the new lenses, they're not much larger in size than the old ones, and yes these wide angle primes were due a facelift.
I suppose the IS is in there because, well, why not, may as well. Strange they didn't include IS on the new 24-70 2.8 L though.
Anyway, I think you're right, Canon would be nuts to move into medium format digital cameras when they can easily just make more of the same and sell loads..........
Thanks for the replies