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    Bris sextant questions
    From: Alexandre Eremenko
    Date: 2004 Nov 10, 14:08 -0500

    I am very curious about this Bris sextant,
    and have some questions to its owners:
    1. Doug Royer Mon Nov 08 2004 - 13:49:02 EST
    reports some fixes of amazing accuracy,
    Somewhere near San Diego, and he says this was "on land".
    Question: was a natural horizon or artificial
    horizon used?
    (I would be very proud to have such precision with my
    conventional equipment).
    Other people reported
    using it when "hiking in the desert".
    What horizon did they use in the desert?
    2. Bris sextant (according to the description
    on Cassens-Plath web site has some preset altitudes.
    So that you only need to mark the time.
    What are these altitudes? How many?
    (From the manufacturer description I could conclude
    that there are at least 4.
    3. How do you use it? Is it attached to eyeglasses
    (as shown on the Cassens-Plath picture)? How does it filter
    the sunshine, without obscuring the horizon?
    I mean which part of it has shades?
    4. Who sells it and for how much?

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