Best telescope mirror alignment tool. Telescope Collimation. Celestron C8-N
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90 degree secondary mirror alignment. Secondary mirror and focuser alignment. Sec. Mirror holder compatible with C8-N.
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When using newtonian telescope we very need make collimation. It is very difficult if you don't use any tool. That tool is good way to alignment 90 degree of secondary mirror. After that that tool is good way to alignment main mirror.
The 45 -degree cut at the end of the tube allows the secondary mirror to be fully achieved to the focus tube 90 degrees.
If the laser tube does not sit tightly in the main tube, you can wrap a tape around it and provide tightening.
The laser light is fully centered and no shaking.
There is also a rectangular opening at the end of the tube to reach the laser in the main mirror.
Put first long tube, second short tube into tube. When you see with your eyes that two holes alignment, understand that you are looking at the very middle of the Focus tube. You can align secondary mirror.
After that you can align main mirror normal procedure.
I test it with Celestron C8-N. And Baader steel diamond focuser. I also add the measurements of the parts.
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