Description This Sigma 35mm f/1.2 DG DN Art Lens For Sony E Mount 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. Complementing its imaging capabilities, the lens includes a large Hyper Sonic Motor to produce quick, smooth, and quiet autofocus performance with full-time manual focus override. While the aperture ring’s de-click switch can prevent unwanted noise from being recorded while capturing video with sound, the built-in Autofocus-Lock (AFL) button can be assigned additional functions to widen the range of operations available on the lens. Additionally, a rounded 11-blade diaphragm contributes to a pleasing bokeh quality.