[USED] SIGMA 70-200 mm f/2.8 EX DG APO OS HSM

Key Specifications Focal Length: 70–200mm (Equivalent to 105–300mm when mounted on an APS-C crop sensor) Aperture Range: Constant maximum f/2.8 to minimum f/22 across the entire zoom range Optical Stabilization (OS): Built-in system providing up to 3 to 4 stops of shake correction, featuring two modes (Mode 1 for general shooting, Mode 2 for panning) Lens Construction: 22 elements in 17 groups Special Optics: 2 FLD (“F” Low Dispersion, mimicking fluorite performance) and 3 SLD (Special Low Dispersion) elements to fight chromatic aberrations Diaphragm Blades: 9 rounded blades for smooth background blur Closest Focusing Distance: 1.4m (4.6 ft) Filter Thread Size: 77mm Dimensions & Weight: Approx. 86.4mm x 197.6mm; weighs a substantial 1,430g (3.15 lbs) Autofocus Motor: HSM (Hyper Sonic Motor) internal focus drive with full-time manual override