Sigma 50mm F1.4 ART DG HSM Lens for Canon

Description Style:Canon  |  Configuration:US Version SIGMA 50MM A LENS F1.4 DG HSM CANON EF MT   50mm focal length 75mm equivalent focal length on APS-C cameras, 80mm equivalent focal length on Canon APS-C cameras F1.4 maximum aperture; F16 minimum Ring-type ultrasonic-type AF motor with full-time manual focusing 77mm filters 0.4m/15.7″ minimum focus Available in Canon EF, Sony Alpha, Sigma SA, Nikon F (FX) mounts