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  1. Astro-Tech 6" f/9 Ritchey-Chrétien astrograph

    $479.95
    The exceptional value 6" Astro-Tech Ritchey-Chrétien astrograph is once again available for the serious deep space astrophotographer on a budget . .
  2. Astro-Tech AT6CC 6" f/12 Classical Cassegrain

    $499.00
    6" f/12 Classical Cassegrain,so much performance at such a great price.
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