FD800mm f/5.6L
| Marketed | December 1979 |
| Original Price | 495,000 yen |
| Lens Construction (group) | 6 |
| Lens Construction (element) | 7 |
| No. of Diaphragm Blades | 9 |
| Minimum Aperture | 32 |
| Closest Focusing Distance (m) | 14 |
| Maximum Magnifcation (x) | 0.057 |
| Filter Diameter (mm) | 48 |
| Maximum Diameter x Length (mm) | 149 x 577 |
| Weight (g) | 4,600 |
