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    Re: Compact Lightweight Metal Sextants - Freiberger Yacht vs. Astra IIIB
    From: Greg Rudzinski
    Date: 2012 Aug 9, 20:23 -0700


    The 7/8 sextants have there place as a handy space saver aboard small craft. The metal versions made by Freiberger and Tamaya will hold their index error better than the plastic 7/8 sextants and have a better 2 or 3 power scope. The half silvered horizon mirror vs. an all silvered horizon mirror question I'll leave to optical experts on the list. What I have noticed comparing them is that when observing the Sun with the half silvered horizon mirror there is a whole horizon mirror effect on the unsilvered left side which allows the visible horizon to be seen under the relfected Sun across the left half field of view.

    I will recommend going with the full size sextant for the simple reason that the mirrors are bigger making body acquisition easier.

    Greg Rudzinski

    [NavList] Compact Lightweight Metal Sextants - Freiberger Yacht vs. Astra IIIB
    From: David Fish
    Date: 9 Aug 2012 18:07
    In searching for available alternatives to the Astra IIIB sextant, I've found that I can obtain a new Freiberger Yacht sextant.

    While the Astra IIIB would seem to have clear advantage of readily available parts and accessories, I'm wondering whether some folks here might have perspectives on the relatively merits of the Freiberger Yacht Sextant.

    Unlike the Freiberger Drum sextant, the Yacht model is 7/8's size, very lightweight at just 1.9 lb. It is also available in white for whatever advantage that might offer in tropical temps and has a somewhat expensive illumination accessory.

    Also am curious about the implications of the Freiberger half-width glass mirror only (as opposed to half-silvered/half transparent full width glass on traditional horizon) approach?

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