Canon FL Lenses
Prelude to the venerable FD Lenses
Canon FL refers to a bayonet lens mount standard for 35mm single-lens reflex 35mm cameras. It was introduced in April 1964 with the Canon FX camera, replacing the previous Canon R mount. It was in turn replaced in 1971 by the Canon FD lens mount.
FL lenses were manual focus lenses with an automatic diaphragm tied into the photo exposure metering system. Focusing was done wide open but when the shutter release was pressed the diaphragm quickly closed to the setting determined by the metering system to be best for the chosen shutter speed. These lenses can also be used on FD-mount cameras.
The following cameras were released with the FL mounting system:
- Canon FX (1964)
- Canon FP (1964)
- Canon Pellix (1965)
- Canon FT QL (1966)
- Canon Pellix QL (1966)
- Canon TL (1968)