OK here is a picture of my image train behind the Tal 200K.
From the front
M68 to 57 adapter (custom machined)
Helicoid focuser (7758)
Spacer M57 t0 M57 (smallest)
Focal Reducer (7887)
Canon adapter (5005)
This gives an unvignetted image to a full frame Canon 5DH.
The FR has a facility for 48 or 52mm filters in the front.
Brilliant is it not in its simplicity?
Bert
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