More contrast under suburban skies — my real-world experience with the Baader UHC-L Booster Filter (50.4 mm).
Three projects, challenging conditions, and an honest technical conclusion from my backyard in Koblenz.

https://astrocamp.eu/en/more-contrast-under-suburban-skies-my-experience-with-the-baader-uhc-l-booster-filter/

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