R400mm f/4.5
| Marketed | January 1960 |
| Original Price | 10,900 yen |
| Lens Construction (group) | 4 |
| Lens Construction (element) | 5 |
| No. of Diaphragm Blades | -- |
| Minimum Aperture | 22 |
| Closest Focusing Distance (m) | 3.1 |
| Maximum Magnifcation (x) | -- |
| Filter Diameter (mm) | 48 |
| Maximum Diameter x Length (mm) | 100 x 208.4 |
| Weight (g) | 1,700 |
