I have a rather marvellous 400mm Telyt. It has a male 39mm O.D. thread which is bigger than the standard LTM. The normal way to connect it to an M series camera is to use a 16466 M which provides the matching female thread to a male M bayonet (23mm flange-to-flange), plus a Visoflex I or II which has M-bayonet to M-bayonet to connect to the camera and is 41mm flange-to-flange. The Visoflex houses the reflex mirror plus bits sticking out to set and trigger the mirror.
Now that I have an SL, I don't need the Visoflex. It would be nice to replace it with a simple 41mm spacer with M-bayonets on each side. i.e a dummy Visoflex. Does such a thing exist?
Alternatively I could replace both the Visoflex and the16466 with a 64mm spacer, 39mm female thread to male M-bayonet. Does such a thing exist?
The third alternative is disassemble the Visoflex. I haven't tried that. If I do, what problems might I face?