Pairing a medium-telephoto focal length with an extremely bright maximum aperture, the Canon RF 135mm f/1.8 L IS USM offers an engaging mixture of high sharpness and shallow depth of field, making it an ideal choice for portrait subjects. Benefitting this desirable combination is an advanced L-series optical design, robust and weather-sealed construction, and fast AF along with dependable image stabilization for intuitive use.

Impressively bright f/1.8 maximum aperture affords extensive control over depth of field for selective focus applications and also benefits working in low-light situations. Three ultra-low dispersion elements control a variety of aberrations in order to achieve high sharpness, clarity, and accurate color rendering. Both Air Sphere and Super Spectra Coatings improve image quality by maintaining high contrast and color accuracy while reducing lens flare and ghosting when working in strong lighting conditions. Rounded nine-blade diaphragm contributes to a pleasing bokeh quality.