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How To Collimate A Refractor

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Dark Sky Geek

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LINKS MENTIONED IN THIS VIDEO:
* Dark Sky Geek Community Discord server:   / discord  
* Electronic Focuser Indiegogo crowdfunding campaign: https://igg.me/at/electronicfocuser
* Cheshire eyepiece for refractors: https://bit.ly/3wugf14
* DIY Cheshire Projection Adapter FreeCAD model: https://bit.ly/3T1Wzuv
* Howie Glatter Parallizer: https://bit.ly/48mOYek (Agena Astro) or https://bit.ly/3T2b29O (Starlight Instruments)
* Web page with a list of image artifacts and their possible cause: https://bit.ly/3wmRiot
* Grzybowskistyle collimator: https://www.fernrohrservice.de/4.html
* ‪@DaveUrbanAstro‬ YouTube Channel:    / @daveurbanastro  

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posted by Boussalemgf