Quote:
Originally Posted by Dum777
Hi Guys my daughter bought a second hand newtonion 150 and for the life of me i carnt align secondary mirror to see the 3 clips of primary mirror .
Been trying for 3 days and don't want her to lose interest , any help or tricks ill
appreciate
Thanks Ian
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More important than seeing the three clips, is actually aligning the mirrors.
The secondary may be too high in the tube.
I had trouble collimating until I was referred to astro babys guide to collimation.
HERE