Quote Originally Posted by cxr
I just want to ask about image quality between the two lenses. Which one is sharper? According to the charts, it seems that the 24-105 is a bit sharper than the 24-70

At a 1 or 2 focal lengths the 24-105 is a LITTLE BIT sharper, but overal the 24-70 is better. And by a significant amount at wider apertures, like f/4 and f/5.6. Remember, Bryan's crops are not all the way to the extreme corner. So differances at certain focal lengths arenot visible in the charts, so ifyou see a significant differance inhischarts in the corners then the corners will beeven worse when you look at the full rez picture in the extremecorners.I think the most obvious differance between the two is at 24mm, the 24-70 is a little worse in the center but significantly better in the corners with about half of the distortion.


At atypical landscape aperture of f/11 they are about the same.


Hope this helps,


John.