Canon RF 15-35mm f/2.8L IS USMOne of the zoom trinity lens favoured by photographers across genres, RF 15 35mm f 2. 8L IS USM has made a leap forward in its design made possible with RF mount. Going 1mm wider comparing to EF 16 35mm f 2. 8L USM III, but increasing angle of view by 4. Designed to provide up to 5 shutter speed stops of Image Stabilization that ensures sharp images in dimly lit situations. Edge to edge clarity detail across the focal length, whether for the majestic