The fast standard lens SIGMA 30 mm F1.4 DC DN Contemporary lets users of mirrorless cameras experience the fun of shooting with a maximum aperture of F1.4. Particularly appealing are the beautiful bokeh that can only be achieved with a fast lens, and the exceptionally precise optical performance that characterises a top-class fixed focal length lens. These technologies and design considerations, characteristic of the Contemporary product line concept, are well balanced in this lens. A fixed focal length lens that, at around 50 mm and a speed of F1.4, offers an angle of view similar to that of the human eye. The shallow depth of field at full aperture offers photographers ideal conditions for fascinating portraits and still lifes. For landscapes or snapshots, a smaller aperture with a greater depth of field can be selected. Standard lenses offer a wide range of photographic applications and have therefore been part of photographers' basic equipment for decades. This standard lens offers a 35mm equivalent focal length of 60mm on the Micro Four Thirds system and 45mm on the Sony E-Mount or Canon EF-M system. Sigma lenses with the "DC" designation offer optimal performance on cameras with APS-C image sensors. Using a DC lens on a camera with a full-frame image sensor will inevitably lead to vignetting. For optimal results, match the active image field of the sensor to the image circle of the lens. Sigma lenses with the "DN" designation offer optimal performance in conjunction with cameras with a short flange focal distance.