Hi, I'm keen to replace the R&P focuser on my SkyWatcher 150p. It's the older version (blue tube) and all the replacement focusers I've found seem to have much larger mounting hole points. The holes on my scope are 55mm (along the tube) and 65mm (around) apart. Are there any knowledgeable folks out there who could please steer me in the right direction?
Cheers
