Canon's RF-mount ultra-fast standard prime — f/1.2 at 45mm with STM motor for hybrid shooting.
The Canon RF 45mm f/1.2 STM is a recent addition to Canon's RF lens range, providing an ultra-fast f/1.2 aperture at the slightly-wider-than-50mm focal length of 45mm. The STM motor prioritises smooth, quiet AF for hybrid stills/video use.
Optically designed for the f/1.2 specification — the large aperture provides extraordinarily shallow depth of field at 45mm. STM motor provides smooth focus transitions for video. The 45mm perspective is slightly wider than standard 50mm — a subtle creative choice.
Canon RF mount. Full-frame coverage. The f/1.2 aperture demands large glass elements resulting in significant size and weight. Expected weather sealing. Minimum focus distance will be close for environmental shooting.
Very new — limited used availability. The RF 50mm f/1.2L USM is Canon's established ultra-fast prime. The 45mm focal length is an unusual choice — different from the standard 50mm. For Canon RF shooters wanting f/1.2 at a slightly wider perspective.