| Lens mount | Leica M |
| Focal length | 40 mm |
| Largest aperture | f/2 |
| Smallest aperture | f/16 |
| Minimum focus distance | 0.8 m |
| Optical design (elements/groups) | 6/4 |
| Filter thread size | 40.5 mm |
| Weight | 125 g |
| Introduced | 1973 |
| Lens mount | Leica M |
| Focal length | 40 mm |
| Largest aperture | f/2 |
| Smallest aperture | f/16 |
| Minimum focus distance | 0.8 m |
| Optical design (elements/groups) | 6/4 |
| Filter thread size | 40.5 mm |
| Weight | 125 g |
| Introduced | 1973 |