The Contax Planar 35/2 T* lens v2.0 for Leica M-mount by Mr. Ding is now available in black finish (initially, only the silver version was released)
Previous coverage of M-mount lenses by Mr. Ding can be found here.
Additional information on the Contax Planar 35/2 T* lens v2.0:
Now available: Contax Planar 35/2 T* non-destructive lens conversion kit 2.0 for Leica M-mount
The new Contax Planar 35/2 T* non-destructive lens conversion kit 2.0 for Leica M-mount