Canon EF 70-200mm f/2.8L IS III USM is a fast-aperture telephoto zoom lens and a favourite lens with professional photographers. It’s a lens for all genres and works great in bright light and most challenging conditions. The maximum aperture f/2.8 delivers pin-sharp subject against smooth out of focus background. A 3.5-stop image stabilizer smoothes camera shake and a fast f/2.8 aperture lets light twice as f/4 lens. The first and last lens surfaces are coated with fluorine which helps it to be dust-proof and drip-proof. Canon’s Air Sphere Coating(ASC) minimizes Ghosting and Flare. Closest Focussing range is 1.2m and it also has 8-bladed diaphragm. Features a fast, near-silent AF system and inner focusing ring USM system with high-speed CPU and AF algorithms. Also offers full-time manual focus.