[Jason D (Jason)]

Originally Posted by mswhin63

I have found for more serious collimation I watched a series of Youtube videos from http://www.youtube.com/watch?v=zd-fl9SEYHw about 9 parts. Way over the top for a lot of visual observing but does say that. What I found though was I helped me under in a lot of detail about the Newtonian and how it works.

I watched all 9 videos. The video is missing the part about how to align the focuser axis which can be accomplished by either:
1- Fine tuning the secondary mirror to redirect the single laser beam to the primary center or
2- Fine tuning the secondary mirror to align the primary center spot with the sight-tube cross hairs
In addition, the video shows the primary mirror being adjusted when the OTA is at horizontal position -- not a good idea. It is recommended to have the OTA at around 60 degrees when the primary mirror is adjusted
Jason