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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Bris Sextant
From: Doug Royer
Date: 2005 Nov 7, 16:06 -0800
From: Doug Royer
Date: 2005 Nov 7, 16:06 -0800
This also would explain another "deficiency" the 8 images if Sun that I see are not aligned on one vertical line. However I don't see how it could affect precision, and don't think it does. On my opinion, the only limitation of precision is the absence of the scope. If one attaches the scope, the attachment should certainly have a collimation adjustmeent (rotating the Bris part around a vertical axis). With such adjustment, I do not see why Bris device will be less precise than ordinary sextant. (Of course I do not mention again its other limitations). Alex. Alex, I've followed this thread from the start. Glad you got one of these Bris "sextants" as they are a great and a unique tool. I found mine in a chandler's shop in San Pedro, Ca. a few years ago and have used it many times. I carry mine in an old aluminum film canister when not in use. I also took a pair of glasses, popped the lens out and attached a wire clip arrangement to hold the Bris to the frames while useing.
