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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Shade safety on Davis 15
From: Paul O
Date: 2026 Mar 27, 08:48 -0700
From: Paul O
Date: 2026 Mar 27, 08:48 -0700
Thank you. For testing UV blockage, I've been directed to get a UV lightsource, cover it in cardboard, then cut out a spot to try my ND filters. If working properly, and safely for my eyes, then there should be no exit of black light. It'll be a fun project.
I did reach out to Davis just now as well - should have done so in the past.
tks
Paul






