Hi, I just realised that the new MC-14 teleconverter could potentially be used with adapted lenses. Even though the MC-14 protrudes a bit forward it doesn't look like it protrudes that far forward so I guess most adapters will provide anough clearance so the converter won't risk touching the rear elements of the adapted lens when the adapter is attached to the converter. Also, converters make most sense with telephoto lenses and many of them are anyway made to work with native teleconverters that protrude inside the lens. Has anyone tried? I suppose the MC-14 might be optically better than eg native Canon FD converter.