Sigma 24-70mm f/2.8 DG OS HSM Art Lens for Canon EF

Key Features
EF-Mount Lens/Full-Frame Format
Aperture Range: f/2.8 to f/22
Three SLD Elements
Four Aspherical Elements
Super Multi-Layer Coating
Hyper Sonic Motor AF System
OS Image Stabilization
Rounded 9-Blade Diaphragm