Canon FD lens mount - Wikipedia The Canon FD lens mount is a physical standard for connecting a photographic lens to a 35mm single-lens reflex camera body. The standard was developed by Canon of Japan and was introduced in March 1971 with the Canon F-1 camera. It served as the Canon SLR interchangeable lens mounting system until the 1987 introduction of the Canon EOS series cameras, which use the newer EF lens mount. Canon EF 50mm f/1.4 USM Standard & Medium Telephoto Lens Amazon : Canon EF 50mm f/1.4 USM Standard & Medium Telephoto Lens for Canon SLR Cameras - Fixed : Camera Lenses : Camera & Photo Canon U.S.A., Inc. | EOS Rebel T5i 18-55mm IS STM Lens Kit disclaimer canon u.s.a.,inc. makes no guarantees of any kind with regard to any programs, files, drivers or any other materials contained on or downloaded from this, or any other, canon software site.