The Canon EF 400mm f/2.8L IS III USM Lens is a professional super-telephoto prime lens, designed for sports, wildlife, and action photography. Featuring a bright f/2.8 aperture, it delivers stunning subject isolation, excellent low-light performance, and beautifully smooth bokeh. As the lightest 400mm f/2.8 lens in its class, it ensures improved handling and portability for extended shooting sessions. Equipped with 5-stop Optical Image Stabilization (IS), this lens significantly reduces camera shake, ensuring sharp images even at long distances. The Ultrasonic Motor (USM) autofocus provides fast, silent, and precise focusing, essential for capturing high-speed action. Advanced L-series optics, including Super UD and fluorite elements, minimize aberrations for unparalleled image quality. Its weather-sealed, durable construction makes it reliable in extreme shooting conditions.