Fittings and adapters for replacement focusers

[billhinge]

Hi

I'm purchasing bits and pieces for my ideal scope based on 1st gen Altair Wave 80mm APO. Original version came with a 3" focuser. I'm looking to add a Riccardi reducer so thought may be time to upgrade the focuser as well. I have changed the focuser on a SCT before but not on a refractor.

If I buy a native Feather-lite or 3" Baader what types of fitting do they have tube side?

I removed the focuser from the Altair and there appears to be a 104mm od screw thread on the OTA  with a kind of  dovetail adapter screwed onto this, the focuser is then held on to the dovetail by 3 grub screws and a thumb screw

I looked at the manufactures sites but they don't really explain the fitting side

[woodsie]

Hi billhinge

Check out the Feathertouch page in us for explanation of all the  adaptor types and sizes for their focusers and which scopes they fit. Telescoope service in Germany have a good stock of Feathertouch focusers. And or their own brand of rack and pinion focusers

Peter

[Gorr_77]

...Altair Wave? - call Ian at Altair - he would help you out.. and if you have to have special adaptor made: ( i've  used them 3 times now )- TS-Optics or RVOis the place.  

Other thing - mesure up the tube OD, call one of the dealers (FLO?) and either: they will find an adaptor for you. - or directly form FT