Canon's flagship 400mm f/2.8 super-telephoto with IS III and revolutionary weight reduction.
The Canon EF 400mm f/2.8L IS III USM is Canon's current flagship super-telephoto prime, representing the ultimate in professional sports and wildlife lens engineering. The Mark III revision dramatically reduced weight while improving optical performance, making it the most advanced 400mm f/2.8 Canon has ever produced.
Optical quality is extraordinary with fluorite and Super UD glass elements delivering unmatched sharpness, contrast, and colour accuracy. The IS III stabilisation system provides up to five stops of correction. The ring-type USM autofocus is blazingly fast and accurate, essential for tracking fast-moving subjects at 400mm.
Build quality is professional-grade with weather sealing, a lightweight magnesium alloy barrel, and Canon's fluorine coating on the front and rear elements for easy cleaning. The dramatic weight reduction over the Mark II makes handheld shooting more practical and reduces fatigue during extended sporting events and wildlife sessions.
On the used market, the 400mm f/2.8L IS III represents enormous savings over current pricing while delivering the absolute cutting edge of Canon's super-telephoto engineering. For professional sports, wildlife, and press photographers, this lens defines the pinnacle of what is achievable in telephoto prime lens design.