Testing astrophotography filters with a HIGH RESOLUTION spectrophotometer

Опубликовано: 24 Август 2026
на канале: Dark Sky Geek
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DESCRIPTION:
In this video, I describe the equipment and the procedure I use to do spectrophotometric analysis of astrophotography filters with an astonishing level of resolution and accuracy. I present some of the results I've obtained, and talk about the reaction of some filter manufacturers, both good and bad, when confronted with the data. Today, we're keeping them honest!