Central sharpness is excellent even at open aperture of f/1.2, becoming outstanding from f ... For this review, the lens was tested on a Canon EOS R using Imatest. CA (Chromatic Aberration ...

The widest lens in the hybrid range, the Canon RF 20mm f/1.4L VCM is also the company's widest professional lens; only the ...

Central sharpness is very good at f/1.8 and f/2, excellent from f/2.8 through to f/5.6, very good from f/8 to f/16 and fair at f/22. The edges are good at f/1.8 and f/2, very good from f/2.8 to f ...