NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Has anyone made a Bris sextant - what kind of glass did you use?
From: David Fleming
Date: 2022 Feb 20, 16:58 -0800
From: David Fleming
Date: 2022 Feb 20, 16:58 -0800
You look thru the Bris at the horizon and wait for a multisurface reflection to sit on the horizon. You do not want to use welding glass or any absorptive glass. Microscope slides will do fine. It may be that glasses with a reflection coating are better but I haven't worked that out.
