NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2010 Sep 21, 12:42 -0700
Jeremy,
I have never seen a double prism on a sextant so it is good to hear your first hand experience with this attachment. My original question though pertains to an optical lens that stretches out a point of light into a line which is perpendicular to the sextant frame. Modern sextants don't seem to have this stigmatizing lens and I was wondering if this was to lower cost or because there is no real benefit to the star observation. I too prefer rocking the sextant to consistently determining the vertical.
Greg Rudzinski
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