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The other night I noticed that my 2" EPs seemed to wobble in the focusser. Upon further investigation, it appeared the tapered barrels on the 28UWAN and 40 Paragon do not mesh well with the brass expansion ring and the only way to get the EPs to fit snugly is to raise them somewhat in the focusser. My thoughts had been to get a better focusser, however, now it is not apparent that this problem will go away. Considering the weight of the 28 UWAN, it still seems that a better focusser is in order, perhaps something designed to manage imaging equipment. Any help out there?

Jud

Judson Mitchell said:

The other night I noticed that my 2" EPs seemed to wobble in the focusser. Upon further investigation, it appeared the tapered barrels on the 28UWAN and 40 Paragon do not mesh well with the brass expansion ring and the only way to get the EPs to fit snugly is to raise them somewhat in the focusser. My thoughts had been to get a better focusser, however, now it is not apparent that this problem will go away. Considering the weight of the 28 UWAN, it still seems that a better focusser is in order, perhaps something designed to manage imaging equipment. Any help out there?

Jud

Jud:

I recently purchased a 28mm Uwan here on Astromart... No wobble in my old Paracorr... And I am believing that Paracorr is almost a necessity with a 28mm Uwan and a fast Newt. Probably better to spend the money on the Paracorr than the focuser if you don't have one already...

That's my two cents.

Jon

Jud,

What brand focuser do you have? A Pic? I did not have this problem with either of those eyepieces in the stock Orion focuser or in the upgraded Orion dual speed for the XT10. Also a warning, I have one of the older Paracorrs which only has one tightening screw for the adjustable tuning top. When near the highest setting, the entire tuning top wobbles on the Paracorr main housing. Probably why the more current ones have the double lock. So if you get a Paracoor to solve the problem, make sure it is the varienty with the dual lock.

-Bill