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

The Canon EF 100-400mm f/4.5-5.6L IS USM is a versatile telephoto zoom lens beloved by wildlife and sports photographers. Its push-pull zoom design, weather-sealed L-series construction, and effective image stabilization make it reliable in challenging conditions. Offering impressive sharpness throughout its range, this lens features a rotating tripod collar, focus limiter switch, and compatibility with Canon teleconverters. While superseded by a Mark II version with improved optics and twist zoom, the original remains popular on the used market for its excellent reach-to-weight ratio and legendary durability.