Canon FD lens mount
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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 197
Lens mount of the Canon T90
Canon FD 50 mm f/1.4 on AE-1 Program.
50 mm f/1.4, breech ring version 1 ("chrome nose")
55 mm f/1.2 S.S.C., breech ring version 2 (black nose, green o)
Canon EF lens mount
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The EF lens mount is the standard lens mount on Canon’s EOS family of cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled by a dedicated electric motor built into the le
Canon FD lens mount
…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. The FD mount lingered through the release of the 1990 Canon T60, the last camera introduced in the FD system, and the end of the Canon New F-1 product…
The rear end of an EF mount lens with its electronic contacts visible
The EF mount of a Canon EOS 50
Electronics of an EF-S lens
An EF lens showing its different controls and features