CANON LENS RF 28-70MM F/2 L USMRF Mount Lens Full Frame Format Aperture Range: f 2 to f 22 Ultra Low Dispersion Elements Ring Type Ultrasonic Motor AF System Customizable Control Ring Rounded 9 Blade Diaphragm ###split### Combining the versatility of a zoom with the speed typically reserved for a prime, the Canon RF 28 70mm f 2L USM is a wide angle to portrait length lens distinguished by its impressively unique f 2 constant maximum aperture. This bright design yields excellent low