Lens Lab
    Canon EF 100-400mm f/4.5-5.6L IS USM
    Canon EF 100-400mm f/4.5-5.6L IS USM

    Canon EF 100-400mm f/4.5-5.6L IS USM

    100–400mm · f/4.5–5.6

    Overview

    The Canon EF 100-400mm f/4.5-5.6L IS USM is a versatile telephoto zoom popular for wildlife and sports. Optically, it is ultra sharp with very little distortion, though its maximum aperture is slow. Build is solid all-metal, but the push-pull zoom mechanism is polarizing: it allows fast zooming but can suck in dust and requires constant tension adjustment. The first-generation IS provides about 2 stops of stabilization. It suits photographers needing reach in a relatively compact, professional-grade package.