I use this glass with Canon EOS 7D devices, and Canon EOS 5 film camera. Genres - architecture and extreme sports (the extreme requires a wide angle when shooting Skateboard and Street-, (and, or), Freeskate-Rollers, as well as BMX)). I was pleased with the working suitability at ALL aperture values. I was lucky - I got a copy without back-front focus. The lack of IS is not critical for stills, but for video I recommend the 24-105L USM. (I filmed football with him FROM HANDS, and everything is fine)