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Thanks john.
Ah, OK, that makes sense now. I presently have a range of typical rack and pinion types and also a couple of Chinese crayfords. I'm looking seriously at one really good focuser at the moment to finish one of my scopes, a 12.5" F6 Newt planet gobbler, and have looked at the Clement Focussers (EXPENSIVE!!!), and also possibly Feathertouch or similar. I don't know anyone who has used or seen a Clement though. Would be interested to know if anyone has? Seems to me with the Clement, you don't have to worry about a focusser tube getting into the light path if you position it close in.
Infocus travel shouldn't be an issue as I built the scope and can re-arrange things to some degree to accomodate. Had this problem some time ago with Binoviewing already, so the Pararcorr shouldn't be an issue with this previous experience.
The Paracorr is very tempting...
Cheers
Nick
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