| Year | 1979 |
| Lens Groups | 6 |
| Lens Element | 7 |
| Aperature Blades | 9 |
| Minimum Aperture | f/32 |
| Closest Focusing | 14 m |
| Max. Magnifcation | 1:17.5 (0.057x) |
| Filter Size | 48 mm |
| Diameter x Length | 149 x 577 |
| Weight | 4600 gr (10.14 lb) |
| Hood | - |
| Beefiness | 0.46 |
Photos tagged for the Canon FD 800mm f/5.6 L in the Canon Classics Flickr Group.