View Single Post
  #13  
Old 08-08-2013, 07:14 PM
doppler's Avatar
doppler (Rick)
Registered User

doppler is offline
 
Join Date: Nov 2012
Location: Mackay
Posts: 1,689
Quote:
Originally Posted by noeyedeer View Post
I did defocus to see how bad it was out of collimation and by the website it looks like it's only tube currents .. even after a few hours. defocused, stars looked more like this \\|// ... with the star under the | ...(if that makes sense)

When you use the defocus method to check collimation you need to use a high magnification eyepiece on a bright star to see the "airy discs" properly(I use a 6mm on my 8" f6 newt to check collimation)

Rick
Reply With Quote