One of the most versatile lenses available, the Canon EF 70-200mm f/2-8L IS III USM Lens is an L-series telephoto zoom distinguished by its bright design and advanced optics- Ideal for a variety of subjects ranging from portraiture to sports, the fast constant f/2-8 maximum aperture excels in difficult lighting conditions and also offers increased control over depth of field for isolating subjects- The optical layout makes use of one fluorite element and five UD elements to suppress chromatic aberrations and color fringing in order to realize a high degree of clarity throughout the zoom range- An Air Sphere Coating is also featured, and works to reduce flare and ghosting for greater color fidelity and contrast in all conditions- Complementing the speed and optics is an Optical Image Stabilizer, which compensates for 3-5 stops of camera shake to better enable working handheld and in low-light situations- A ring-type USM and internal focusing mechanism also afford quick, quiet, and accurate autofocus performance, as well as full-time manual focus override- Additionally, this lens is weather-sealed for use in trying environmental conditions-{Key Features} - EF-Mount Lens/Full-Frame Format - Aperture Range: f/2-8 to f/32 - One Fluorite Element & Five UD Elements - Air Sphere Coating - Ring-Type Ultrasonic Motor AF System - Optical Image Stabilizer - Internal Focus, Focus Range Limiter - Weather-Sealed Design, Fluorine Coating - Detachable, Rotatable Tripod Collar - Rounded 8-Blade Diaphragm {Box Contents} - Canon EF 70-200mm f/2-8L IS III USM Lens - E-77 II 77mm Lens Cap - Lens Dust Cap E (Rear) - ET-87 Lens Hood - LZ1326 Lens Case - Tripod Collar{Product video}