INCLUDED - Sigma 70-200mm f/2.8 DG DN OS Sports Lens, Front/Rear Caps, 4-Year Warranty, Slinger Lens Case, ProOPTIC Filter Kit, and Lens Cap Tether for immediate use. SUPERB IMAGE QUALITY - Achieve exceptional clarity and sharpness with 6 FLD, 2 SLD elements, and 3 aspherical elements, minimizing aberrations for stunning results. VERSATILE FOCAL LENGTH - The 70-200mm zoom range offers flexibility for various shooting scenarios, from portraits to sports, ensuring you capture every moment. BRIGHT F/2.8 APERTURE - Capture stunning low-light images and achieve beautiful background blur with the constant f/2.8 aperture, enhancing your creative possibilities.