With 9 circular blade diaphragm, the bokeh achieved are creamy and simply breath-taking. Performing extremely well in low-light conditions and with its 9 circular blade diaphragm, the bokeh are breath-takingly creamy. The Blue Spectrum Refractive Optics (BR) and Ultra-low Dispersion (UD) optics within the RF85mm f/1.2L USM extensively suppresses chromatic aberration with the Air Sphere Coating (ASC) greatly reducing the flare and ghosting issues.
An additional control ring on the barrel of RF85mm f/1.2L USM that could be customised to control exposure settings; shutter speed, aperture, ISO and exposure compensation, providing a more intuitive control especially while shooting through the Electronic View Finder. The control ring has a tactile, easily distinguished surface and features a clicking mechanism that provides tangible feedback during adjustment.
| Focal length: 85mm |
| Aperture range: F1.2-16 (In 1/3 EV stops) |
| Filter thread: 82mm |
| Close focus: 0.85m (2.79 ft.) |
| Maximum magnification: 0.12x |
| Diaphragm blades: 9 (rounded diaphragm) |
| Hood: ET-89 round-shaped hood (supplied) |
| Length / Diameter: approx. 103.2 x 117.3 (4.06 in. x 4.62in) |
| Weight: approx. 1,195g (approx. 2.63lbs) |
| Optical construction: 13 elements in nine groups |
| Features |
| Aimed primarily at portrait, fashion, wedding and event photographers, the RF 85mm F1.2L USM brings together a handful of RF-specific technologies with those seen previously in the EF line. |
| Despite its size and weight, the lens has been designed with just 13 elements in nine groups, although some of these are necessarily quite large. They include a single ground aspherical element to keep spherical aberration and corner softness from being a problem, and an Ultra Low Dispersion element positioned just ahead of it to help combat chromatic aberration. |
