A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2018 Apr 14, 12:49 -0700
For navigators that wear glasses the ghost ring on a sextant will offer more clearance and horizon field of view over a sight tube. It comes at the expense of a little more glare but may be worth it when in big swells on a small craft. Also an excellent option when taking horizontal sextant angle observations.