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  1. Astro-Tech AT92 f/5.5 Triplet Apo Refractor OTA Astro-Tech AT92 f/5.5 Triplet Apo Refractor OTA

    Astro-Tech AT92 f/5.5 Triplet Apo Refractor OTA

    $1,795.00
    9 Review(s)
    If you are looking for the best fast focal ratio/compact APO refractor that Thomas Back and Roger Ceragioli could create, then look no further.

    Out of stock

  2. ES102 102mm f/7 "Essential Series" ED triplet refractor Explore Scientific 102mm f/7

    Explore Scientific 102mm f/7 "Essential Series" FCD-1 ED Triplet Refractor

    $1,199.99
    8 Review(s)
    This 102mm (4") Explore Scientific Essential Series 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.
  3. Sky-Watcher Esprit 150mm f/7 ED apochromatic triplet refractor with field flattener Sky-Watcher Esprit 150mm f/7 ED apochromatic triplet refractor with field flattener

    Sky-Watcher Esprit 150mm f/7 ED apochromatic triplet refractor with field flattener

    $8,250.00
    1 Review(s)
    The big Sky-Watcher Esprit 150mm 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 imaging. It's a superb 6" apo refractor that can be the heart of your observing and wide field imaging system for years to come.
  4. TSA-120 4.7" F/7.5 Ortho-Apochromat triplet refractor OTA Takahashi TSA-120 4.7

    Takahashi TSA-120 4.7" F/7.5 Ortho-Apochromat triplet refractor OTA

    $5,240.00
    2 Review(s)
    This Takahashi TSA-120 4.72" ED triplet refractor puts true-color "super apochromat" optical excellence in a portable 15.4 lb. package . . .
  5. Save $531.00
    Esprit 80mm f/5 ED apochromatic triplet refractor with field flattener Sky-Watcher Esprit 80mm f/5 ED apochromatic triplet refractor with field flattener

    Sky-Watcher Esprit 80mm f/5 ED apochromatic triplet refractor with field flattener

    Regular Price: $2,230.00

    Special Price $1,699.00

    3 Review(s)
    The compact Sky-Watcher Esprit 80mm ED apochromatic triplet refractor has the premium high contrast/high resolution optical performance you need to let you use it as the heart of your observing and wide field imaging system. 
  6. Save $711.00
    Esprit 100mm f/5.5 ED apochromatic triplet refractor with field flattener Sky-Watcher Esprit 100mm f/5.5 ED apochromatic triplet refractor with field flattener

    Sky-Watcher Esprit 100mm f/5.5 ED apochromatic triplet refractor with field flattener

    Regular Price: $3,210.00

    Special Price $2,499.00

    1 Review(s)
    The Sky-Watcher Esprit 100mm ED apochromatic triplet refractor has the premium high contrast/high resolution/flat field optical performance you need to let you use it as the heart of your observing and wide field imaging system.
  7. 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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