| Focal Length | 1200mm |
| Maximum Aperture | f/8 |
| Minimum Aperture | f/64 |
| Lens Mount | Canon RF |
| Lens Format Coverage | Full-Frame |
| Angle of View | 2° 5' |
| Minimum Focus Distance | 14.1' / 4.3 m |
| Maximum Magnification | 0.29x |
| Optical Design | 26 Elements in 18 Groups |
| Diaphragm Blades | 9, Rounded |
| Focus Type | Autofocus |
| Image Stabilization | Yes |
| Tripod Collar | Fixed and Rotating |
| Filter Size | 52 mm (Drop-In) |
| Dimensions (ø x L) | 6.6 x 21.1" / 168 x 537 mm |
| Weight | 7.3 lb / 3340 g |