Sigma 24-70mm f2.8 DG OS HSM Art Lens for Nikon F

Key Features
F-Mount Lens/FX 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