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    Re: accurate sextant
    From: Gary LaPook
    Date: 2008 Jun 19, 09:36 -0400
    Alexandre E Eremenko wrote:

    Of those listed above, SNO-T indeed seems the best,
    but mainly because of its 6x scope.
    
    
    This 6x inverting telescope seems to be
    the most important feature
    (which you do not find in other modern sextants).
    I add that a "normal" 3.5x sextant telescope that
    fits most modern sextants also fits SNO (M and T)
    and it can be probably bought from
    Celestaire. The factory package of SNO-T contains
    two telescopes, the famous 6x and a standard 3.5x.
    
    Gary LaPook ads:
    
    And, not suprisingly, the six power scope from my SNO-T fits on my Tamaya perfectly.
    
    gl
    

    Dear Bill (Engineer),
    
      
    I think the SNO-T(sometimes designated SNO-T) is probably
    the best nautical sextant ever made.
    Mechanically, it is sound and the
    optics, by Zeiss, are superb.
        
    
    This is an interesting statement:-)
    I would never say this unless I tried really many sextants.
    
    (In my Cel Nav career I tried an SNO-T, an Astra-IIIB,
    a very old C.Plath (1900) and
    a Tamaya-CLONE seriously, not counting a pocket sextant,
    and
    Astra-III-Professional, Cassens-Plath, Freiberger,
    Husun (old) and an old used C. Plath for a short time
    (let's say "in a store").
    
    Of those listed above, SNO-T indeed seems the best,
    but mainly because of its 6x scope.
    The main disadvantage of SNO-T from  my point of view
    is the "enclosed worm" construction.
    This is supposed to protect it from dust and bugs,
    but in fact it prevents you from
    cleaning and inspection of the
    worm screw. The same construction is shared by
    Freibergers and some Belgian sextants.
    
      
    The SNO-M is not quite so easy to use
    for the beginner as it has only one telescope,
    a x6 that gives on
    inverted image,
        
    
    This 6x inverting telescope seems to be
    the most important feature
    (which you do not find in other modern sextants).
    I add that a "normal" 3.5x sextant telescope that
    fits most modern sextants also fits SNO (M and T)
    and it can be probably bought from
    Celestaire. The factory package of SNO-T contains
    two telescopes, the famous 6x and a standard 3.5x.
    
    Alex.
    
    
    
    
    
      


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