1200mm f/18.0 T Large-format T-series lens
Nikkor T 1200mm f/18.0 ED
| Focal Length (mm) | 1200 |
| Maximum aperture ratio | 1:18 |
| Minimum aperture | f/64 |
| Lens construction (elements/groups) | 8 / 5 |
| Covering power (Max. aperture) | 10° |
| Covering power (f/22) | 15° |
| Image circle (mm) (Max. aperture) | 200 |
| Image circle (mm) (f/22) | 310 (8 x 10) |
| Shutter (Copal® No.) | 3 |
| Shutter speed (sec.) | 1~1/125, T, B |
| Sync socket | X-contact |
| Front mount size (mm) | 100 |
| Attachment size (mm) | 95 x 1(P) |
| Rear mount size (mm) | 70 |
| Flange attachment size (mm) | 62 x 0.75(P) |
| Flange focal distance (mm) | 527.4 |
| Overall length (mm) | 176.5 |
| Weight (g) | 1,600 |
