The Sigma 30mm f/1.4 EX DC designed for professional use is stands apart from any other prime lens. Sigma 30mm has a large f/1.4 aperture and high speed suitable for low light conditions. Sigma 30mm has an image sensor that functions as a normal lens relatively duplicating the human eye field of view. Sigma 30mm features bright f/1.4 aperture, minimum focusing distance of 15.75" and 1:10.4 max magnification. The Signa 30mm f/1.4 consistently delivers outstanding optical performance.