Canon EF 50mm f/1.8 II Autofocus Celltime Premium Fixed Lens Kit for Canon EOS 7D, 60D, EOS Rebel SL1, T1i, T2i, T3, T3i, T4i, T5i, XS, XSi, XT, XTi Digital SLR Cameras 50mm focal length 80mm equivalent focal length on Canon APS-C cameras F1.8 maximum aperture; F22 minimum Micromotor-type AF motor without full-time manual focusing 52mm filters Lens not zoomable