Thanks David,
Great post and great link... I really this site..optical limits. I have never seen it before, and I think is seems much better/ user friendly than one I discovered a few weeks ago: Dxomark, do you concur?
I asking for fine art, I shoot on the 24-105 for people/fashion, I don't make too many large prints: it's fantastic, but for fine art where you could end up printing 60" on the long side, you think any of the equivalent fixed lenses would be substantially sharper on the large print? I own a 50 1.8, and 28, 2.8. I never use these ever. Maybe I should? I don't think these version though are on the site, especially the 28 which is 11 years old.... been replaced with 1.8 with IS.
OH.. Thanks Ghagg!
I just bought an 11-24, but will return it, it's a bit heavy and will be getting the 16-35 f/4.