View Single Post
  #1  
Old 27-06-2006, 11:02 PM
dugnsuz's Avatar
dugnsuz (Doug)
Registered User

dugnsuz is offline
 
Join Date: Aug 2005
Location: Hahndorf, South Australia
Posts: 4,373
Internal reflections in a GSO 2" ED Barlow

Hi all,
Received my 2" ED GSO Barlow from Bintel yesterday.
Checking out Jupiter I noticed some bright internal reflections bouncing around when I moved my eye around the 22mm Pano in the barlow.
Effect not noticed on deep sky work.
On inspection of the barlow, I noticed that the chrome barrel between the eyepiece holder and lens sections is not fully blackened - sort of dark metallic grey colour.
Could this be the reason for the reflections on bright objects?
If so, what is the best way to blacken an internal surface?
Any ideas/suggestions???
Cheers
Doug
Reply With Quote