A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Peter Monta
Date: 2018 Jun 1, 16:16 -0700
I wonder if prisms could be used rather than mirrors.
My current prototype is much less ambitious and sticks with the standard Bris x2 on a 58mm uv camera filter and cut microscope slides 22mm x 25mm that are shimmed by pencil leads 0.7mm and 2mm. The resulting images (5,6,7,8) on each Bris do not need shading. Hs of 15 ,20 25 30...45,50,55 are formed for a useful set.