The Canon RF 85mm f/1.2 L USM is a flagship portrait prime lens engineered for Canon’s full-frame RF-mount mirrorless cameras. Its extraordinary f/1.2 maximum aperture delivers breathtaking background separation and stellar low-light performance, while Canon’s revered L-series build quality ensures dust and moisture resistance for professional use in any environment.
Optically, this lens is built around an advanced layout featuring a Blue Spectrum Refractive Optics element that virtually eliminates chromatic aberration and color fringing, complemented by one UD element and one aspherical element for edge-to-edge sharpness. A ring-type Ultrasonic Motor (USM) provides fast, near-silent autofocus, and the customizable Control Ring puts exposure adjustments—aperture, ISO, and exposure compensation—right at your fingertips.
Key features
- Exceptional f/1.2 Maximum Aperture: Enables precise selective focus with silky bokeh and outstanding performance in challenging low-light conditions.
- Blue Spectrum Refractive Optics (BR Element): Specially designed element that refracts short visible wavelengths to nearly eliminate chromatic aberrations and color fringing for stunning color accuracy.
- UD + Aspherical Elements: One ultra-low dispersion and one aspherical element work together to suppress distortion and aberrations, delivering razor-sharp, high-resolution imagery across the full frame.
- Air Sphere Coating (ASC): Applied to key elements to dramatically reduce flare and ghosting when shooting in bright or backlit environments, maintaining contrast and color fidelity.
- Ring-Type USM Autofocus: Fast, precise, and near-silent autofocus with full-time manual focus override, powered by optimized algorithms and a high-speed CPU for confident tracking of subjects.
- Rounded 9-Blade Diaphragm & Customizable Control Ring: Nine rounded aperture blades produce beautifully smooth bokeh, while the configurable Control Ring allows direct lens-side adjustment of aperture, ISO, or exposure compensation.
Specifications
| Mount | Canon RF |
|---|---|
| Format Compatibility | Full-Frame |
| Focal Length | 85mm |
| Maximum Aperture | f/1.2 |
| Minimum Aperture | f/16 |
| Optical Elements | Blue Spectrum Refractive Optics element, 1 UD element, 1 Aspherical element |
| Lens Coating | Air Sphere Coating (ASC) |
| Autofocus System | Ring-Type Ultrasonic Motor (USM) |
| Diaphragm Blades | 9 (Rounded) |
| Weather Sealing | Yes – dust and moisture resistant (L-series) |
Frequently asked questions
Is the Canon RF 85mm f/1.2 L USM compatible with Canon EOS R full-frame mirrorless cameras?
Yes. The lens features a native Canon RF mount and is designed specifically for Canon's full-frame RF-mount mirrorless digital cameras, such as the EOS R, EOS R5, and EOS R6 series, ensuring full electronic communication and autofocus functionality.
How does the Blue Spectrum Refractive Optics element improve image quality?
The BR (Blue Spectrum Refractive) element is a specially developed optical element that refracts shorter wavelengths of visible light (blue spectrum) to bring all colors to a common focal point. This virtually eliminates chromatic aberrations and color fringing, resulting in noticeably sharper, more color-accurate images—especially visible when shooting wide open at f/1.2.
Does the Canon RF 85mm f/1.2 L USM have weather sealing?
Yes. As a member of Canon's prestigious L-series, the RF 85mm f/1.2 L USM features a weather-resistant construction that protects against dust and moisture, making it suitable for use in demanding or inclement shooting conditions.
