An RF zoom super-telephoto lens with a focal length of 400mm. It is lightweight in design but still maintains excellent image quality. The optical image stabilizer of the lens provides up to 5.5 levels of anti-shock effect1. When used with EOS R3, EOS R5 or EOS R6, it can be used with the body anti-shock to further improve the anti-shock effect to level 622, making handheld shooting easier.