| Focal Length | 12mm |
| Maximum Aperture | f/2.8 |
| Lens Mount | Canon RF |
| Lens Format Coverage | Full-Frame |
| Focus Type | Manual Focus |
| Image Stabilization | No |
| Maximum Aperture | f/2.8 |
| Minimum Aperture | f/22 |
| Lens Mount | Canon RF |
| Lens Format Coverage | Full-Frame |
| Angle of View | 121.96° |
| Minimum Focus Distance | 7.09" / 18 cm |
| Maximum Magnification | 0.2x |
| Optical Design | 16 Elements in 10 Groups |
| Diaphragm Blades | 7 |
| Focus Type | Manual Focus |
| Image Stabilization | No |
| Filter Size | None |
| Weight | 1.34 lb / 609 g |
| Package Weight | 2.25 lb |
| Box Dimensions (LxWxH) | 7.1 x 4.8 x 4.5" |