Voigtländer has officially announced its 21mm F1.4 Nokton lens for the Sony E mount after showing the concept at the CP+ show in February. The company says the lens will have electronic contacts to transfer EXIF data to the camera and distance information from the lens will help the camera’s image stabilization system. Turning the focus ring on the manual focus lens will activate focus assist modes in the camera, and the aperture ring offers click-less operation for those shooting videos.

The lens is constructed of 13 elements in 11 groups, features a 12-blade aperture diaphragm, has a minimum aperture of F16 and a shortest focus distance of 0.25m. It weighs 560g, measures 70.5mm x 79.5mm (2.78in x 3.13in) and takes a 62mm filter. Below is a (nowhere near full-res) gallery of sample images provided by Voigtländer:

The Voigtländer Nokton 21mm F1.4 will be available in June for ¥165,000 (approx. $1,500).
For more information see the Voigtländer website.