Sigma 12-24mm f/4 DG HSM Art Lens (Nikon F)

The Sigma 12-24mm f/4 DG HSM Art Lens gives photographers a wide-angle full-frame option with the build and image quality people have come to expect from the Sigma Art series lenses. ;Using FLD and aspherical lens elements, along with Super Multi-Layer coatings, the Sigma 12-24mm Art series lens offers high image quality, with minimal aberrations, distortion, flare, and ghosting. ;Sigma's Hyper Sonic AF motor offers fast, accurate focus, and the large focusing ring with full-time manual override settings for quick adjustments. ;The 12-24mm f/4 Art lens is also fully compatible with Sigma's USB Dock for firmware upgrades and calibrations.