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  1. Explore Scientific AR127 5" f/6.5 achromatic doublet refractor

    $699.99
    This 5" Explore Scientific achromatic refractor optical tube is a big performer, both inside the solar system and out in the realm of the nebulas and galaxies, at a not so very big price.
  2. Explore Scientific AR152 6" f/6.5 achromatic doublet refractor optical tube

    $949.99
    This 6" Explore Scientific AR152 achromatic refractor optical tube is a sensational value - a big 6" (152mm) and fast f/6.5 refractor that's priced like an 80mm scope.
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