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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Sextants with Polarizing filters
From: Frank Reed CT
Date: 2006 Jan 24, 06:11 EST
From: Frank Reed CT
Date: 2006 Jan 24, 06:11 EST
Any opinions on these? I think they're rather neat, but is there a downside? If you haven't seen them, the idea is to use crossed polarizing filters which can be rotated to produce any desired amount of darkening (within a certain range) instead of the standard sextant shades. The earliest sextants with polarizing filters apparently date from the Second World War. Is that right? -FER 42.0N 87.7W, or 41.4N 72.1W. www.HistoricalAtlas.com/lunars