| Year | 1968 |
| Lens Groups | 6 |
| Lens Element | 7 |
| Aperature Blades | 8 |
| Minimum Aperture | f/16 |
| Closest Focusing | 0.6 m |
| Max. Magnifcation | 1:9.9 (0.101x) |
| Filter Size | 58 mm |
| Diameter x Length | 65 x 51 |
| Weight | 340 gr (0.75 lb) |
| Hood | - |
| Beefiness | 2.01 |
This is a sharp lens with good bokeh and overall solid build. I use with the Canon FP and Pellix QL. It is a fast lens that is comparable in IQ to the FD and nFD 50mm f 1.4. It slightly heavier than the FD and a lot heavier than the nFD. It takes the metal clamp on hood S-60.