Stephane replied to the topic 'NGC-7380 / The wizard Nebula' in the forum. 4 months ago

ok so you have 2 issues, collimation and focus, I would say that you need to get the collimation spot on or you'll be chasing your own tail for the focus.
A quick search on Google starizona.com/tutorial/collimating-a-schmidt-cassegrain/

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