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

EF-Mount Lens/APS-C Format
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