A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: David C
Date: 2016 Aug 1, 20:14 -0700
I cannot get my sextant telescopes to focus. I have attached a photo of the telescopes and fittings.
In particular I am puzzled by the lens labelled F. It has male threads on both sides. The threads are of different diameters. Despite trying every possible combination I cannot work out how it is meant to be used. I am wondering I am missing a tube with a female thread at one end, although there aren't any empty slots in the case.
Any help with a Sextant Telescopes 101 would be appreciated.