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Re: Simplified Bris Sextant (calibration)
From: Alexandre Eremenko
Date: 2012 May 15, 00:34 -0400
From: Alexandre Eremenko
Date: 2012 May 15, 00:34 -0400
Greg, > No camera or magnification used. Just the Mark 1 eyeball through > polarizing filters. What's "Mark 1 eyeball"? Naked eye? But your Bris, judging from the photos you posted is of clear glass... How did you attach a dark filter to it? You mention "polarizing filters". Can you look through polarizing filters at the Sun? Alex.