Sigma 17-70mm f/2.8-4 DC Macro OS HSM Contemporary Lens

Features: 27.2-112mm (35mm Equivalent) Aperture Range: f/2.8 to f/22 Two FLD Elements, One SLD Element Three Aspherical Elements Super Multi-Layer Coating Hyper Sonic Motor AF System OS Image Stabilization 1:2.8 Magnification, 8.7" Minimum Focus Rounded 7-Blade Diaphragm The Sigma 17-70mm f/2.8-4 DC Macro OS HSM is a Contemporary-series lens, also characterized by its compact, lightweight profile. The bright f/2.8-4 maximum aperture range pairs with the wide-angle to short-telephoto zoom range to create an ideal travel and everyday lens. The optical design uses a series of low dispersion and aspherical elements to control color fringing and distortion in order to realize high clarity and sharpness. A Super Multi-Layer Coating has also been applied to suppress flare and surface reflections for improved contrast in bright conditions. Also, this zoom sports a high 1:2.8 maximum magnification and 8.7" minimum focusing distance to suit working with close-up subjects. In terms of handli