Another crazy? how is the build quality of the 15-85 say vs the 28-135? Just curious? It would be nice if the was a store that sold canon lens locally!
I own both of these lenses. The 15-85 is excellent. The 28-135 is very good. Build of the 28-135 is not as good. The 28-135 is sharp wide open, in the center 50%. The 28-135 is a bit less sharp at 135 than it is shorter, but still very good in the center. My copy of the 28-135 looks much better when shot on FF than on APS-c.