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(From Canon lens literature) Designed to satisfy the discriminating needs of sports and wildlife photographers, the EF 200–400mm f/4L IS ... to 280–560mm (f/5.6). This capability is extremely ...

In summary, the Canon EF 400mm f/2.8L IS III USM lens is a superb performer. You can view additional images in the Equipment Database, where you can add your own review, photos and product ratings.