Mr. Ding Studio is currently developing new Leica M-mount conversion kits for the classic Contax Zeiss 50mm f/1.7, 50mm f/1.4, and 85mm f/1.4 lenses. The design will keep the original outer barrel and brand ring intact. The installation process will be much easier. The new kits are in the final R&D stage and have already gone through several iterations of testing and refinement. The official release is expected by the end of the year.
Mr.Ding Studio is also working on a new M-mount rehousing/conversion kit for the Schneider Componon 50mm f/2.8 lens (see eBay listings):
Mr. Ding Studio currently still has in stock the following Leica M-mount lens conversion kits (see all products):
Mr. Ding Studio Contax G35 Planar 35/2 T* lens to Leica M-mount conversion kit V2.1 now available
Officially released: Contax Biogon G28/2.8 for Leica M-mount conversion kit by Mr. Ding