Canon EF 70-200mm f/2.8L USM AF Lens Kit, USA - Bundle with 77mm Photo Essentials Filter Kit, Flex Lens Shade, Lens Cap Leash, Lens Cleaning Kit, Lens Hood ET-83 II, Pro Software Package Canon EF 70-200mm f/2.8L USM AF Lens - Lens Cap E-77U - Rear Lens Cap E - Lens Hood ET-83 II - LZ-1324 Lens Case - Strap - Tripod Collar - Canon 1 Year USA Warranty - Bundle Includes: - 77mm Filter Kit (UV/CPL/ND2) - Flex Lens Shade - Lens Cap Leash - Professional Lens Cleaning Kit - Lens Hood ET-83 II - Pro Software Package (Includes Corel PaintShop Pro X9; Corel VideoStudio 9; Corel AfterShot 2 Pro; AutoFx Mystical Ultimate Bundle Gen2; FileCenter Professional) Maximum Aperture: 1:2.8 Four UD-glass elements to correct chromatic aberrations Lens Construction: 18 elements in 15 groups Inner focusing system with USM