Sigma 70-200mm f/2.8 EX DG APO OS HSM Lens for Canon

Features Up to 4 Stops of Optical Stabilization Optimized for Canon Full-Frame DSLRs Auto and Manual Focus Super Multi-Layer Lens Coating Fast f/2.8 Maximum Aperture Fast & Quiet Hyper-Sonic Motor (HSM) 77mm Filter Size Excellent for Action/Low-Light Shooting 55.1" (140cm) Close Focusing Distance Lens Hood & Adapter Included The APO 70-200mm f/2.8 EX DG OS HSM from Sigma is a telephoto zoom lens covering a useful portrait-length to medium telephoto range. Characterized by its bright f/2.8 constant maximum aperture, this lens excels in difficult lighting conditions and also affords flexible depth of field control for isolating focus. Featuring an apochromatic designation, this lens's optical design employs a series of low dispersion elements to virtually eliminate chromatic aberrations and color fringing for high clarity and color accuracy. A multi-layer coating is also used to control ghosting and flare for improved contrast when working in bright and backlit condit