Argonavis
23-07-2022, 12:21 PM
Orion Ultra Block broadband "light pollution" filter 1.25inch $50
cloudy nights:
https://www.cloudynights.com/topic/561960-uhc-filter-ts-vs-orion-ultrablock/
https://www.cloudynights.com/topic/83830-orion-ultrablock-filter-what-a-difference/
cloudy nights:
https://www.cloudynights.com/topic/561960-uhc-filter-ts-vs-orion-ultrablock/
https://www.cloudynights.com/topic/83830-orion-ultrablock-filter-what-a-difference/