Canon RF10-20mm F4 L IS STM

The RF 10-20mm F4 L IS STM is an ultra-wide-angle zoom for full-frame EOS R cameras that opens the frame to a rectilinear 10mm, wider than any Canon zoom before it. That coverage is built for architecture, interiors, landscapes, and run-and-gun video where you need to take in a whole scene from a tight vantage point, and the constant f/4 aperture holds exposure steady as you zoom to 20mm. An optical formula with one Super UD element, three UD elements, and three aspherical elements keeps distortion and color fringing in check across the range.

A gear-type STM focus drive delivers the smooth, near-silent autofocus that video work depends on, and optical stabilization adds up to 5 stops of shake correction, rising to 6 stops when paired with a body that has in-camera IS. There is no front filter thread at this angle of view; the lens accepts rear gelatin filters instead. It ships with the Lens Cap 10-20, RF dust cap, and LP1219 lens case.