goamules
Well-known
If you have a live view mirrorless camera (pretty much any of them) it is easy to adapt the Vitessa lens for about $30 or so.
Shawn
The Vitessa is long gone. For the Prominent mount lenses, I did make a temporary focusing mount out of a Leica close up adapter. But it was not very nice looking or permanent. To be so, I could use some glue or wads of duct tape. But hate to ruin a very nice Ultron.