Sigma 35mm f/1.4 DG HSM Art Lens for Nikon FProduct Description: An optically advanced wide angle prime, the Nikon F 35mm f 1. 4 DG HSM Art Lens from Sigma mixes a comfortable focal length with an especially fast design. The bright f 1. 4 maximum aperture helps to achieve shallow depth of field and selective focus effects, and also suits working in difficult lighting conditions. The optical layout incorporates both low dispersion and aspherical elements, which help to improve sharpness and