Zoom / sigma-sa
The SIGMA APO 135-400mm F4.5-5.6 Aspherical RF is a zoom lens covering the range from the wider end of the telephoto range to the super-telephoto range.
Compatible with the Sigma SA mount, it is suitable for a wide variety of subjects, including landscapes, wildlife, and sports.
“RF” in the product name identifies the lens series and does not indicate a Canon RF mount.