Leica M body + C-mount lens
Unfortunately the flange focal depth doesn't allow conversion.
Flange focal depth of the C-mount is 17.526mm, while the Leica M's is 27.8 mm, and no recessed adapter is able to make up for that difference.
Have you found an error, or would you like to share some insight about an item? Feel free to mail it to us, we appreciate your help in improving the site.