KIPON Mount Adapter CRF-L39 silver This adapter is for a Contax C lens to a Leica L39 body. This is a rare, discontinued mount conversion adapter. It allows you to attach rangefinder Contax lenses to L mount bodies like Barnack Leicas and various digital cameras. By attaching an ML ring, conversion to M mount is also possible. There are some scratches, but there are no practical problems.