While the Sigma 30mm f/1.4 Dc Dn Contemporary Lens for Micro Four Thirds is a standard lens from the Contemporary line, it offers an extraordinary experience of shooting with F1.4 brightness. This lens is a perfect blend of Sigma's cutting-edge technologies and design insights, providing photographers with the joy of capturing stunning portraits, tabletop still life shots, landscapes, and snapshots with a beautiful bokeh effect that only a large-aperture lens can offer.This lens is designed for optimal performance on cameras with Aps-c image sensors, as indicated by the "Dc" in its name. When used with a full-frame image sensor camera, it may cause vignetting, so it's advised to adjust image area settings for optimal results. The "Dn" in the lens name signifies its design for optimal performance on cameras with a short flange back distance.The Sigma 30mm f/1.