Jan 27, 2020 ·  As with its slightly cheaper sibling, the Canon RF 85mm f/1.2L USM DS lens 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, 9 rounded diaphragm blades for smoother bokeh, 85cm close-focus distance, a configurable control ring, and a weather-resistant construction. 

Sep 03, 2020 ·  The Canon RF 85mm F1.2 L USM DS is a big, gorgeous prime lens with absolutely impeccable optics and an internal filter that for softer, more pleasing bokeh. Canon RF 85mm F1.2 L USM DS Specs Get... 

Jan 21, 2020 ·  What about the Canon RF 85mm F1.2L USM DS? The lens on test is joined by a slightly more costly (+$300) 'DS' variant, and while the it adheres to the same basic formula and optical design as the non-DS version, the ‘DS’ suffix denotes the presence of Defocus Smoothing technology. 

Dec 19, 2019 ·  The Canon RF 85mm f/1.2L USM DS is the nichest of niche lenses; this is the closest that Canon has ever come to making a Lensbaby-esque special effect optic. It renders the smoothest, creamiest, dreamiest bokeh we've ever experienced on a lens – the DS coating takes this beyond even f/0.95 lenses in terms of noise-free blur. 

Jul 24, 2019 ·  The Canon RF 85mm f/1.2L USM is designed with 13 elements spread across nine groups, with a single ultra-low-dispersion element and an aspherical one to control aberrations and general image quality. 

The DS features an apodization filter for an even smoother bokeh. Unsurprisingly, the RF 85mm f/1.2 USM L is a member of the professional-grade L class in Canon's growing R-mount lineup. The build quality of the (big) Canon RF 85mm f/1.2 USM L is exceptional. 