Canon's FD-mount constant f/4 telephoto zoom — classic manual-focus design for FD system.
The Canon FD 70-210mm f/4 is a telephoto zoom from Canon's FD (breech-lock bayonet) lens system for Canon A-series and F-series 35mm SLR cameras. The Canon FD mount is incompatible with Canon EF and RF mounts without an optical adapter. Manual focus only. Canon FD mount.
f/4 constant aperture. 70-210mm zoom range. Manual focus only. Canon FD mount (breech-lock bayonet). At approximately 535g. 58mm filter thread.
The Canon FD mount uses a breech-lock mechanism distinct from later Canon EF bayonet mounts — FD lenses require an optical adapter (with correction element) to function on EF and RF cameras, or a mechanical adapter that moves the lens further from the sensor to approximate the correct flange distance. The 70-210mm f/4 was a popular telephoto for the FD system in the 1980s.
On the used market the Canon FD 70-210mm f/4 is a vintage telephoto for Canon FD-mount film cameras. Condition checks: breech-lock ring condition, zoom and focus ring smoothness, 58mm front element for marks or haze, aperture blade condition. FD mount — requires optical adapter for EF or RF use.