Description Sigma 17mm f/4 DG DN Contemporary Overview Offering excellent image quality in an ultra-compact design, this Sigma 17mm f/4 DG DN Contemporary Lens is an ultra-wide-angle prime for Sony E-mount cameras. Designed with an inner focusing system and stepping motor, this lens provides fast and reliable autofocus for both stills and video. The optical design produces high sharpness and clarity throughout the aperture range, and individual elements feature a super multilayered coating to suppress flare and ghosting for greater contrast and color fidelity when working in strong lighting conditions.
