Sigma APO 50-500mm F4.5-6.3 DG OS HSM for Canon EOS Lens Includes Bonus Xit 60" Full Size Photo / Video Tripod, and More SIGMA AUTHORIZED DEALER With FULL Warranty INCLUDES BONUS Digital Pro Series Universal Gadget Bag - Large - scb800, 1 Piece Micro Fiber Cloth, Lens Cap Keeper, Dust Removal Blower System, Vivitar Tri-fold Memory Card Wallet - Stores up to 3 Memory Cards, Xit 60" Full Size Photo / Video Tripod, Xit Hi-Speed SD and Micro SD USB 2.0 Card Reader, Xit 95mm Multicoated UV Protective Filter, 3pc. Lens Cleaning Kit ALSO INCLUDES 3-Year Warranty LENS CONSTRUCTION CONSISTS of 22 Elements in 6 Groups; 4 SLD (Special Low Dispersion) glass elements provide optimum color correction & sharpness. OFFERS SIGMA'S OS System (Optical Stabilization) for handheld photography in low-light situations and HSM (Hyper-Sonic Motor) for quiet & high-speed auto focus. ANGLE OF VIEW: 46.8-5.0, Minimum Aperture: f22, Minimum Focusing Distance: 50-180 cm / 19.7-70.9 in, Filter Size (mm): 95, and Maximum Magnifications: 1:3.1. SUPPORTS ONLY SIGMA 1.4X MF and 2X MF Teleconverters for use on Canon digital SLR cameras. A LENS HOOD, hood adapter, front & rear lens caps and carrying case are included with the lens.