Viltrox AF 20mm f/2.8 is an autofocus wide-angle lens designed for full-frame mirrorless cameras, available for mounts such as Sony E and Nikon Z. The 20 mm focal length provides a wide angle of view, suitable for landscape photography, architecture, interiors, travel, urban shooting, and video or vlogging applications where including a broad portion of the scene is useful. The f/2.8 maximum aperture allows shooting in moderate light conditions while maintaining a compact and lightweight body, suitable for everyday use and compact camera kits. The optical design consists of 10 elements in 8 groups and includes ED, aspherical, and high-refractive-index elements, designed to help control chromatic aberrations, distortion, and edge softness. The autofocus system uses an STM motor, intended to provide smooth and relatively quiet focusing for both stills and video. The minimum focusing distance is approximately 19 cm, useful for close-up shots with a wide-angle perspective. The lens includes a 52 mm filter thread, with dimensions and weight varying depending on the mount; the Sony E version measures approximately 65 × 59.5 mm and weighs 157 g. Viltrox AF 20mm f/2.8 is a compact and accessible wide-angle option for users looking for a lightweight prime lens with autofocus and full-frame compatibility, suitable for general photo and video use.