
Sigma 12-24mm f/4 DG HSM Art Lens for Nikon F
F-Mount Lens/FX FormatAperture Range: f/4 to 22FLD and Aspherical ElementsSuper Multi-Layer CoatingHyper Sonic AF Motor, Manual OverrideRounded 9-Blade DiaphragmTSC Material, Brass Bayonet MountDust- and Splash-Proof ConstructionCompatible with Sigma USB Dock