A powerful multiuse zoom for photo and video, the RF 24-105mm f/2.8 L IS USM Z Lens from Canon is the first of its kind at this focal length and aperture. By utilizing dual Nano USM motors, this lens achieves fast and nearly silent autofocusing. The constant f/2.8 aperture allows for optimal low light performance and provides flattering bokeh EF 24–105mm f/4L IS II USM: EF 24-70mm f/2.8L II USM: EF 24-70mm f/4L IS USM: EF-S 15-85mm f/3.5-5.6 IS USM: EF-S 17-55mm f/2.8 IS USM: EF-S 18-135mm f/3.5-5.6 IS USM: EF-S 18-200mm f/3.5-5.6 IS: EF-S 55-250mm f/4-5.6 IS STM: RF 24-70mm F2.8L IS USM: RF 24-240mm F4-6.3 IS USM: RF 28–70mm F2 L USM: RF24–105mm F4-7.1 IS STM: RF100-500mm F4 ixd25Y.