Overview

The Canon EF 400mm f/2.8L IS II USM is a top-tier super-telephoto lens praised for superb image quality even wide open, incredibly fast autofocus, and best-available build quality. Its significant weight reduction allows handholding, a major improvement over its predecessor. However, it has a large, clunky lens hood with a problematic tightening knob, and the focusing ring may slip when resting on a bean bag. It suits professional sports, wildlife, and photojournalistic photographers who can afford its high price.