Tessar 2.8/50
Specification
| Mount | M42x1 |  |
|---|---|---|
| Diaphragm action | Preset/semi automatic/fully automatic | |
| Focal length, mm | 50 | |
| Maximum aperture | f/2.8 | |
| Angle of View | 45° | |
| Minimum focusing distance | 35 cm | |
| Filter size | 49 mm | |
| Construction | 4 elements in 3 groups | |
| Dimensions, (Diameter x Length) | 51x45 mm | |
| Weight, kg | 0.175 |