Interesting.
Sample photos as well as
photos of and from the lens are available... Especially interesting is the comparison with the Noctilux-M.
Seems like a cool concept; love that it's Sonnar-based. Pretty small and light, all things considered! Though it also appears to be a bit on the "quirky" side:
"On the rear element of the lens there is a coma adjustment ring. With settings for infinity, 4m, 2m, and 1m. This is designed to assist with aberration issues which were faced with early Sonnar tyoes when wide open. With the coma selection you can select the focal length you will be using by twisting the rear element inside the lens. When selected the system will help to reduce spherical aberration.""The optimum performance on this lens is looking to be around f/1.6 to f/2."The aperture settings also lack detents (similar to the SLR Magic HyperPrime).
Finally, it's about $1,400 USD (110,000 Yen). A bit more than the Nokton 50mm f/1.1...