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    Re: Sextant mirrors
    From: Bill B
    Date: 2007 Oct 09, 00:50 -0400

    Fred
    
    > Yes, rear-coated mirrors give
    > multiple images, but they are easy to distinguish.
    
    I use an Astra IIIB deluxe, with a traditional (split) rear-silvered horizon
    mirror and front-silvered index mirror. I have not noticed this phenomena.
    
    My understanding is that if you have a front-silvered horizon mirror the
    glass may be omitted on the direct-view portion so refraction differences
    are not a problem.
    
    Would you please give and example or two, what to look for, and the reasons?
    
    Thank you
    
    Bill
    
    
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