The Sigma AF 23mm f/1.4 DC DN Contemporary is a wide-angle lens designed for cameras with Sony E-mount, Leica L-Mount, and Fujifilm X mounts. It offers an equivalent focal length of 35mm. The lens features a fast aperture of f/1.4, a nine-blade diaphragm, and an optical construction consisting of 13 elements in 10 groups. Focusing is available in both automatic and manual modes, utilizing a stepper motor for precise control. The minimum focusing distance is 0.25m, with a maximum magnification of 0.13×. The depth of field scale is marked at F16. There is no image stabilization or tripod mount. The filter thread measures 52mm. Dimensions: 65.8x78.9mm, weight: 330g. Included in the package are front and rear caps, as well as a lens hood.