View Single Post
  #7  
Old 28-11-2018, 02:43 PM
Peter Ward's Avatar
Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,090
Quote:
Originally Posted by multiweb View Post
Fair enough. So you move the secondary spider until the center spot and the laser coincide then adjust the tilt to have a perfect concentric reflection back on to the primary? Do you have enough rings spaced enough to do that given the short path and the secondary is convexe?
Oh crap no...the spider on my scope is set at the factory and should never be touched.

The seconday mirror’s center spot can be aligned using the Taka or Laser...but it’s not a point, it’s a spot...hence I’ve found the laser reflecting back on itself does a better job that guestimating the spot centration.
Reply With Quote