3 Item(s)
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  1. Takahashi TOA-130NS 5.1" F/7.7 Ortho-Apochromat Triplet Refractor OTA

    $7,200.00
    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 . . .
  2. Takahashi TOA-130NFB 5.1" Ortho-Apochromat Triplet Refractor OTA

    $8,110.00
    This performance of this 4" focuser 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, both visually and for medium format and 35mm/large format CCD imaging . . .
  3. Takahashi TOA-150B 5.9" F/7.33 Ortho-Apochromat Triplet Refractor OTA

    $15,070.00
    This big Takahashi 5.9" ED triplet refractor is optically too good to be called simply an apochromatic scope. Only the term ortho-apochromatic is good enough to describe its optical excellence . . .
3 Item(s)
Set Descending Direction