Showing 31 to 40 of 61 total
Set Descending Direction
  1. 2
  2. 3
  3. 4
  4. 5
  5. 6
  1. Explore Scientific AR102 4" f/6.5 achromatic doublet refractor optical tube

    $599.99
    This highly portable 4" Explore Scientific achromatic refractor optical tube (only 25.5" long, with a weight of 11.3 pounds) is a great value for spur-of-the-moment grab and go astronomy . . .
  2. Astro-Tech AT130 EDT f/7 ED Triplet OTA Used

    Regular Price: $1,899.00

    Special Price $1,249.00

    Some observers feel that the Astro-Tech AT130EDT 5.12" f/7 ED triplet apochromatic refractor compares favorably in performance to scopes nearly four times its price. We won't go quite that far, but we will say that the AT130EDT is an exceptional performer and an exceptional value.

    Out of stock

  3. Astro-Tech AT80EDT f/6 ED Triplet Refractor OTA

    Regular Price: $849.00

    Special Price $749.00

    For the backyard grab-and-go observer, for the Milky Way star field scanner, for the wide field imager, for the birder and terrestrial photographer . . . the Astro-Tech AT80EDT 80mm f/6 ED triplet apo is the Swiss Army knife of refractors.
  4. Astro-Tech AT80EDL Refractor OTA FCD-100 and Lanthanum f/7 Doublet

    $899.00
    The Astro-Tech AT80EDL takes the performance of the it smaller siblings and combines it with the mechanics of the EDT line.

    Out of stock

  5. Astro-Tech AT152EDT f/8 Triplet APO Refractor OTA

    Regular Price: $4,395.00

    Special Price $3,495.00

    A true APO using FK61 and Lanthanum in a temperature compensated cell. This is a fantastic instrument.

    Out of stock

  6. Astro-Tech AT150EDL Refractor OTA FCD-100 and Lanthanum f/8 Doublet with Hard Case

    $2,995.00
    The Astro-Tech AT150EDL takes the performance of the it smaller siblings and combines it with the mechanics of the EDT line.
  7. Sky-Watcher Evostar 120mm f/7.5 ED doublet apochromatic refractor

    Regular Price: $2,490.00

    Special Price $1,999.00

    This 120mm Sky-Watcher Evostar 120ED is a premium doublet apochromatic refractor with highly-reviewed high contrast/high resolution optics that Sky & Tel said were on a par with scopes costing three times its price . . .

  8. Astro-Tech AT102ED 4" f/7 ED Refractor OTA Damaged exterior box

    Regular Price: $649.00

    Special Price $549.00

    The Astro-Tech AT102ED is a fantastic value and incredible performer.
  9. Explore Scientific 102mm f/7 Carbon Fiber FCD100 ED Triplet Refractor

    $2,000.99
    This 102mm (4") Explore Scientific Carbon Fiber air-spaced ED triplet apochromatic refractor is loaded with quality optical performance at a surprisingly reasonable price for a scope of its size and optical quality.
  10. 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 . . .
Showing 31 to 40 of 61 total
Set Descending Direction
  1. 2
  2. 3
  3. 4
  4. 5
  5. 6