Central sharpness is very good at f/1.4, excellent from f/2 to f/11 ... For this review, the lens was tested on a Canon EOS 5DS R using Imatest. Barrel distortion measures at -0.26%, a very ...

Central sharpness is excellent from f/1.4 to f/5.6, very good at f/8 and f/11 and good at f/16. The edges match that, being excellent from f/1.4 to f/5.6, very good at f/8 and f/11 and good at f/16.

Canon R and L-Mount options. Other October announcements included the Sirui Aurora 85mm f/1.4 AF, setting its sights on being a perfect portraiture lens, complete with autofocus and an exceedingly ...