found at DigiDirect
Laowa Shift Adapter for 12mm f/2.8 Zero D Lens - EOS to Sony E
Convert your LAOWA 12mm f/2.8 Zero-D into a wide angle SHIFT lens
Laowa Magic Shift Converter (MSC) is an adapter specially designed to convert the Laowa 12mm f/2.8 Zero-D (Canon / Nikon mount) into a 17mm f/4 +/-10mm Shift lens and use it with the Sony full frame E-mount cameras. With the MSC, you can have absolute vertical lines rather than converging lines while shooting. This is a super useful feature in architecture and interior photography.
Laowa Magic Shift Converter (MSC) took advantage of the short flange distance of mirrorless cameras and incorporated a patented optics system into the converter.
The patented optical system in the MSC will enlarge the image circle of the 12mm f/2.8 Zero-D from 43.2mm to 60mm in diameter and convert it a 17mm f/4 lens with +/- 10mm shift capability. The camera can be rotated in a 360 full circle, allowing a quick switch between landscape and portrait framing or to change the shift direction.