Can Tamron 17-50 be used on 5D?
for my curiosity, I am looking for a test between 17-50 and 17-40 on FF camera. Surely Tamron said 17-50 is only for APS-C, but at least on my 20D, 17-50 is better than 17-40 (which is compatible with FF) at border. Maybe on FF, 17-50 is not that bad as they said.
Anybody has done it?