An especially sleek portrait-length prime, the 56mm f/1.4 DC DN is part of Sigma's Contemporary series of lenses, and is designed for use with APS-C-format Sony E-mount mirrorless cameras. The lens is characterised by its bright f/1.4 maximum aperture, which suits working in difficult lighting conditions and also offers improved control over depth of field for isolating subjects and working with selective focus techniques. The optical design utilises two aspherical elements and one SLD element, which help to reduce both spherical and chromatic aberrations for greater sharpness and clarity. A Super Multi-Layer Coating has also been applied to suppress flare and ghosting in order to achieve more contrast and color accuracy when working in strong lighting conditions. Complementing the optics is a stepping AF motor, which suits both photo and video applications due to its quick, precise, and near-silent performance. This lens looks to be in near mint condition with almost no signs of use. The optics are clean and clear with no marks or scratches. The lens barrel shows almost no cosmetic marks. There is some dust within the internal elements of the lens. The focus ring is smooth and in great condition. The lens mount is in great condition showing almost no signs of use.