The first of the series is the standard lens 30mm F1.4 Dc Dn | Contemporary, and the second is the wide-angle lens 16mm F1.4 Dc Dn | Contemporary. The third addition is this smallest mid-tele lens in its class, 56mm F1.4 Dc Dn | Contemporary. While retaining the compact, lightweight, and outstanding image quality concepts of the Contemporary line, thanks to Sigma s leading-edge technology