Does anyone know where to get an Olympus OM to Canon FD adapter or if one exists at all. I have a metabones FD to m43 adapter and would like to also try an OM lens on this adapter. For this, I would need an OM to FD adapter. I found NIKON to FD adapters. The NIKON and OM flange distances are similar so an OM to FD adapter should be possible.