The Sigma 35mm f/1.2 DG DN Art Lens features Sigma's first prime lens design with a f/1.2 maximum aperture. Delivering excellent image quality while optimizing size, as well as weight, the lens' fast f/1.2 aperture helps to achieve shallow depth of field as well as extremely selective focus effects and is also suited for working in very difficult lighting conditions. Three low dispersion glass elements and three aspherical elements, including a double-sided element, effectively control spherical aberrations and distortion for increased sharpness and accurate rendering.