Very bright aperture Edge-to-edge clarity Minimal distortion Dust and splash protection Fluorine lens coat 

Summary The Canon RF 50mm f1.2L USM is a supremely well-corrected ‘standard’ prime lens for Canon’s EOS R mirrorless system. It delivers the optical goods in every regard with crisp details into the corners, minimal distortion, and very shallow depth-of-field effects with lovely rendering. 

The Canon RF 50mm f/1.2L USM features a bright f/1.2 maximum aperture, a ring-type UltraSonic Motor (USM) AF system more usually found in Canon’s super telephoto lenses which delivers fast, near-silent autofocusing, 10 rounded diaphragm blades for smoother bokeh, 40cm close-focus distance, a configurable control ring, and a weather-resistant construction. 

Diagram of the Canon RF 50mm f/1.2L USM lens showing positions of weather seals While we found the RF 50mm f/1.2L to deliver near-flawless results in practical shooting situations, it also performed admirably in our lab testing. 

Review by Klaus Schroiff, published December 2018 Introduction It took us a little way (as always) but it is finally here - the review of the first Canon RF that came into our lab, the Canon RF 50mm f/1.2 USM L. Unless you lived behind the moon for the last few months, you probably know that Canon released its first full-frame mirrorless system at the Photokina 2018 (trade show). 

Jan 21, 2020 ·  Since the launch of the EOS R line in 2018, Canon has mostly concentrated its attentions on high-end RF lenses. The RF 85mm F1.2L IS USM is among the very best. 

Canon RF 50mm F1.2 L USM