Serenar 50mm f/1.9
| Marketed | January 1949 |
| Original Price | 29,500 yen |
| Lens Construction (group) | 4 |
| Lens Construction (element) | 6 |
| No. of Diaphragm Blades | -- |
| Minimum Aperture | 11 |
| Closest Focusing Distance (m) | 1.07 |
| Maximum Magnifcation (x) | -- |
| Filter Diameter (mm) | 40 |
| Maximum Diameter x Length (mm) | 47.6 x 42 |
| Weight (g) | 230 |
