Serenar 100mm f/4 I
| Marketed | January 1948 |
| Original Price | 17,720 yen |
| Lens Construction (group) | 3 |
| Lens Construction (element) | 3 |
| No. of Diaphragm Blades | -- |
| Minimum Aperture | 22 |
| Closest Focusing Distance (m) | 1.07 |
| Maximum Magnifcation (x) | -- |
| Filter Diameter (mm) | 34 |
| Maximum Diameter x Length (mm) | -- |
| Weight (g) | 459 |
