The Sony E-mount 20mm f/2 DG DN Contemporary Lens from Sigma provides excellent edge-to-edge sharpness in a stylish all-metal design. An ideal lens for landscapes, cityscapes, handheld vlogging, and video streaming, the lens provides a modestly bright f/2 maximum aperture for low-light performance and shallow depth of field control. This lens is designed to achieve a balance between convenience and performance and meshes a compact, lightweight build and versatile handling with notable optical attributes. The lens is constructed with one SLD glass element and one FLD glass element to correct chromatic aberration. I-series lens emphasizes a sleek and stylish physical design built to the same operational standards of Sigma's Cine lenses. A wide-angle 20mm lens designed for full-frame Sony E-mount mirrorless cameras, however, can also be used with APS-C models where it provides a 30mm equivalent focal length. Bright f/2 maximum aperture strikes an ideal balance between speed and size and manages to maintain a compact physical profile while also offering low-light performance and depth of field control.

The integrated stepping motor realizes smooth and quiet autofocus. A newly designed linear/non-linear manual focus function is also available. Minimum focusing distance of 8.7" for unique close-up shooting capabilities. All-metal body and high-precision metal parts with a dust- and moisture-resistant lens mount for increased protection from the elements. Compatible with optional CH-11 Magnetic Cap Holder, which features a mini-carabiner for clipping to a bag, jacket, or belt loop.