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.
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Best Canon EF lenses to buy right now
However, that lens retails at £13,549 and is for high-end professionals. For most people, the Canon EF 100-400mm f/4.5-5.6L ...