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How i moved the primary mirror to get focus on my GSO 12" inch dobsonian

Tiago Ferreira

By Tiago Ferreira
in DIY Astronomer

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Tiago Ferreira

Tiago Ferreira

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In this video i show with detail how i moved my primary mirror to get inward focus for filter wheel, focal reducer and astrophotography zwo asi224mc camera. This was made in my 12" inch GSO dob and solved all backward focus issues allowing me to use all kind of things with my telescope. It's a good modification to do in this kind of telescopes.
 
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