ThenbspSigma AF 35mm f1.2 DG DN Art Lens for Sony Enbspis a large-diameter prime lens from Sigma39s new full-frame mirrorless lens series amp is Sigma39s first prime lens that features a bright f1.2 maximum aperture. The AF 35mm f1.2 delivers excellent image quality while its f1.2 aperture assists in achieving a shallow depth of field with extremely selective focus effects. Its bright aperture also makes it suitable for working in difficult lighting conditions. Spherical aberrations amp distortion are controlled via low dispersion amp aspherical elements which increases color accuracy as well as sharpness.The AF 35mm f1.2 features a large Hyper Sonic Motor which compliments its imaging capabilities by providing high-speed amp accurate autofocusing. Full-time manual focus override is featured while the HSM allows for quiet autofocus performance which is helpful when shooting video. The aperture ring39s de-click switch is able to prevent unwanted noise from being captured when shooting video with sound while the autofocus-lock AFL button can be custom-set to widen your range of functions that are available on the lens. Its rounded 11-blade diaphragm plays an important role in the pleasing bokeh effects.