JB
Horrible sharpness. This lens gets so many positive reviews but for me it was terrible. At any focal length my photos were blurry. Maybe I just got a bad lens. I used it on a Canon SL2 with and without lens filters (to make sure the UV filter wasnt the issue) and I was very bummed out. My kit 70-300mm Canon lens blows this one out of the water for sharpness (and i consider it my worst / least sharp lens). Everything seemed to work fine with the lens and it seemed to be fairly heavy duty ..AF worked as good as manually focusing (pics werent sharp either way though). If the canon 100-400mm (arriving today) is blurry like this then I will update my review. My SL2 seems fine and takes very nice photos with my other lenses (kit and primes) so I dont think that the camera is the issue.