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A few fellow astrophotographers have built and used them successfully (forum link in Polish): https://astropolis.pl/topic/71039-monta%C5%BC-wirus-2020/ https:/
by gattr 5y ago
A few fellow astrophotographers have built and used them successfully (forum link in Polish):
https://astropolis.pl/topic/71039-monta%C5%BC-wirus-2020/ https://astropolis.pl/topic/71039-monta%C5%BC-wirus-2020/