R100mm f/3.5 (I)
| Marketed | May 1961 |
| Original Price | 17,000 yen |
| Lens Construction (group) | 4 |
| Lens Construction (element) | 5 |
| No. of Diaphragm Blades | -- |
| Minimum Aperture | 22 |
| Closest Focusing Distance (m) | 1 |
| Maximum Magnifcation (x) | -- |
| Filter Diameter (mm) | 40 |
| Maximum Diameter x Length (mm) | -- |
| Weight (g) | 210 |
