A manual ultra-wide zoom appears from Venus Lens. The Laowa 12-24mm f/5.6 zoom covers a full-frame image circle and is designed for mirrorless system cameras, serving the Sony E / Nikon Z / Canon RF and Leica M mounts. The angle of view corresponds to 84° to 121.9°; the distortion typical of these focal lengths is corrected quite effectively.

Laowa 12-24mm f/5.6 Zoom
However, with a continuous f/5.6, the speed does not turn out very high. The optical design with 15 elements in 11 groups includes two aspherical and three ED elements. The aperture consists of 5 blades. The minimum focusing distance is only 15cm from the sensor plane.
The lens length itself is about 93.6mm (E-mount), the diameter is 69.4mm (the filter thread measures 77mm). The relatively compact zoom lens weighs 497g.
The Laowa 12-24mm f/5.6 zoom costs ( with M-mount) plus duties (shipping is from Hong Kong).