Sigma 85mm F/1.4 DG HSM Art Lens For Nikon F
F-Mount Lens/FX FormatAperture Range: f/1.4 to 16Two Low Dispersion ElementsOne Aspherical ElementSuper Multi-Layer CoatingHyper Sonic AF Motor, Manual OverrideRounded 9-Blade DiaphragmTSC Material, Brass Bayonet MountCompatible with Sigma USB Dock