The Sigma 12-24mm f/4.5-5.6 II DG HSM for your Nikon body is equipped with a hypersonic focusing motor, a seal against splashing water and dust, and an internal lens coating to prevent lens errors. There are lens elements to keep chromatic abberrations to a minimum. Thanks to its wide viewing angle, this lens is a zoom lens and a pleasant partner when, for example, shooting landscapes or architecture. You can frame your picture well, because you can zoom between 12mm and 24mm. Are you looking for a similar lens with a fixed focal point? Take a look at the Nikon 24mm f/2.8.