Join Date: Apr 2006
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Boasun, what's a Navigator? (G)
I'm not certified by anyone but have owned a Freiberger Yacht Sextant and C. Plath Horizon Ultra, have used the Ares, Astra, and Cassens & Plath as well. Bottom line...in some ways the cheaper ones are better than the top ones. The Ultra has some nice twists, like being able to reset the zero on the fly (one less number to work), and the horizon prism, and the polarized shades. And one very nice feature for star sights that's not mentioned or visible for sun sights: One mirror has a slight red cast, the other has a slight green cast. The result is that star sights show a distinct red/green split until they "pop" into a single white image, making it easier to get a real sharp image on a star. It gets "white" as it gets perfectly aligned.
On the other hand--the sight twists on back side, so it goes out of focus as it twists against your eye/glasses. Unlike the Freiberger and others where the twist is in the front--away from contact.
On a moving boat, they're all about the same precision, although the gimmicks on the Ultra would make nay one of them nice. (But heavier.)
Haven't had a GPS fail on me yet--although I never forget the one LORAN that wanted me to steer a course into Kansas. Don't trust any of the silicon kids any more.(G)