Sigma 85mm f/1.4 DG HSM Art Lens for Nikon F

Key Features
F-Mount Lens/FX Format
Aperture Range: f/1.4 to 16
Two Low Dispersion Elements
One Aspherical Element
Super Multi-Layer Coating
Hyper Sonic AF Motor, Manual Override
Rounded 9-Blade Diaphragm
TSC Material, Brass Bayonet Mount
Compatible with Sigma USB Dock