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

    Explore Scientific AR127 5" f/6.5 achromatic doublet refractor

    $749.99
    10 Review(s)
    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.

    Out of stock

  2. AR152 6" f/6.5 achromatic doublet refractor optical tube Explore Scientific AR152 6

    Explore Scientific AR152 6" f/6.5 achromatic doublet refractor optical tube

    $979.99
    16 Review(s)
    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.
  3. Save $866.00
    Sky-Watcher Esprit 120mm f/7 ED apochromatic triplet refractor with field flattener Sky-Watcher Esprit 120mm f/7 ED apochromatic triplet refractor with field flattener

    Sky-Watcher Esprit 120mm f/7 ED apochromatic triplet refractor with field flattener

    Regular Price: $4,165.00

    Special Price $3,299.00

    4 Review(s)
    The big Sky-Watcher Esprit 120mm ED apochromatic triplet refractor with thread-on field flattener combines premium high contrast/high resolution imaging performance with the flat field you need for critical deep space imaging. It's a superb scope that can be the heart of an observing and wide field imaging system for you for years to come.
  4. TOA-130S 5.1" F/7.7 Ortho-Apochromat Triplet Refractor OTA Takahashi TOA-130NS 5.1

    Takahashi TOA-130NS 5.1" F/7.7 Ortho-Apochromat Triplet Refractor OTA

    $7,200.00
    3 Review(s)
    This performance of this Takahashi 5.1" ED triplet refractor is too good to let it be called simply an apochromatic scope. Only the term ortho-apochromatic is accurate enough to describe its optical excellence . . .
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