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    Re: Can anyone tell me why my sextant has two sunshades?
    From: Frank Reed CT
    Date: 2006 Mar 14, 01:51 EST

    Greg, you asked:
    "Can anyone tell me why my  sextant has two sunshades?
    I have a MAC sextant with four shades:
    1  'redish' , 1 'greenish' , and 2 that are so dark as to only
    be for the sun -  why two?"
    Bad design. I've got a MAC sextant, too. It's a nice  "Tamaya-alike".
    Presumably the design was licensed from Tamaya with details  worked out by the
    manufacturer. There are several other odd brands of sextants  that in this category.
    I like my MAC sextant a lot, but there are a number of  little oddities. One
    dark shade is so dark that I can only believe it is  intended for use in the
    unlikely event that the Sun goes supernova. It serves no  real purpose. I use
    the others in combination to get a dark enough level for Sun  sights with this
    sextant, and the results are excellent.
    By the way, the  other people who replied on this are certainly not wrong,
    but until you've seen  an ultra-dark shade, like on that MAC sextant, it's hard
    to imagine.
    You  asked about a manual. I highly doubt that the MAC sextant shipped with
    one. Many  sextants don't have official manuals. Also, I agree with everyone
    else that you  should try a liquid mirror.
    42.0N 87.7W, or 41.4N  72.1W.

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