NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: dip angle refraction correction
From: Greg Rudzinski
Date: 2011 Dec 2, 23:10 -0800
From: Greg Rudzinski
Date: 2011 Dec 2, 23:10 -0800
Here is a dip short calculator
http://www.starpathdemos.com/bowditch/table14.htm
A 200mm lens on a DSLR would give a nice image to count pixels for both dip short and level to horizon dip.
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