Fahim,
I will send you Hugh's details. Can you photograph the focuser of your please so can compare some dimensions etc. The one I have uses the Pentax rotatable collar, but with a Vixen M60 female thread so I can fit a Baader Vixen Click Lock, and also use Vixen spacers etc which I have plenty of.
The SDUF uses a helical focuser but I think yours uses a standard Rack and Pinion?
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