View Single Post
  #3  
Old October 16th 06, 10:43 PM posted to sci.astro.amateur
Glenn Holliday
external usenet poster
 
Posts: 26
Default Collimating Nexstar refractor?

RMOLLISE wrote:
Glenn Holliday wrote:
How do I decide which adjustment this Nexstar needs and
apply it correctly? Does somebody have the procedure I
need written up somewhere?


Do you mean at the center or near the center of the field OR out toward


At the center.

All you can do is loosen the screws on the tailpiece/focuser where it
connects to the tube and move the entire rear assembly gently in the
required direction until good collimation is achieved. I've frequently
done this with Short Tube 80s with good results, though this is
certainly not an optimum solution.


Thanks Rod. I'll go to work on it.


--
Glenn Holliday