It is part of the FL line of lenses from Canon, predecessors of FD lenses and using the same mount. They were produced for Canon film cameras and can be adapted as per below chart.
|FREE ADAPTOR for:||Canon M, RF, EF, Sony E, Fuji X, Micro Four Thirds, Panasonic SL|
|Film camera compatibility:||Canon AE1, A1, AV1, etc|
Buy with confidence ! All lenses come with caps and are fully functional. No dust, fungus, scratches or any internal issues unless mentioned in the "remarks" box.