Canon's classic FD fast normal prime — 50mm f/1.4 with excellent optics for FD-mount film cameras.
The Canon FD 50mm f/1.4 is one of photography's classic fast normal primes, produced throughout the FD-mount era. Available in both breech-lock and New FD bayonet versions, it provided the standard fast prime for Canon film SLR users.
Optically very good — sharp from f/2.8 with characterful rendering at f/1.4 that film photographers appreciate. The f/1.4 provides excellent low-light capability. SSC (Super Spectra Coating) on later versions improves contrast and flare resistance.
Canon FD mount. 55mm filter thread on breech-lock, 52mm on New FD. Compact and lightweight. Manual focus and aperture. All-metal construction. The FD mount does not adapt to Canon EOS without quality-reducing corrective optics.
Available used at budget prices. FD lenses adapt well to mirrorless cameras (Sony E, Fuji X, MFT) via simple adapters — the 50mm f/1.4 is a popular adapted manual lens. Does NOT adapt well to Canon EOS. Check for smooth aperture blades and clear optics.