Testing out the Sigma 35mm f/1.2 L mount lens on the S1R – How is it for video at f/1.2 in continuous autofocus? Tough call, very shallow depth of field. I do think that the background is pulsing though. For accurate, non-pulsing, face detect video, I’ll stick with the Nikon Z6, but if you’re manual focusing, then the Sigma 35mm f/1.2L can really provide some nice bokeh for your shots.