New FD300mm f/4
| Marketed | June 1979 |
| Original Price | 89,000 yen |
| Lens Construction (group) | 6 |
| Lens Construction (element) | 6 |
| No. of Diaphragm Blades | 9 |
| Minimum Aperture | 32 |
| Closest Focusing Distance (m) | 3 |
| Maximum Magnifcation (x) | 0.11 |
| Filter Diameter (mm) | 34 |
| Maximum Diameter x Length (mm) | 85 x 204 |
| Weight (g) | 945 |
