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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. Astro-Tech 6" F/4 imaging Newtonian optical tube

    $399.00
    This new light weight 6" f/4 Astro-Tech imaging Newtonian reflector makes serious very wide field astrophotography possible with even a small equatorial mount, and at a lower cost than ever before . . .

    Out of stock

  3. Sky-Watcher Skymax 150 150mm f/12 Maksutov-Cassegrain optical tube

    $880.00

    The Sky-Watcher 150mm (5.9") Maksutov-Cassegrain folded optical system is a compact optical powerhouse capable of producing sharp, high contrast images inside the solar system and out. And it does it all at a surprisingly reasonable price.

  4. iOptron 6" Maksutov Cassegrain Optical Tube

    $848.00
    Enjoy scanning the night skies with this fantastic 6" iOptron Maksutov.
  5. 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 . . .
  6. Sky-Watcher Esprit 150mm f/7 ED apochromatic triplet refractor with field flattener

    $8,250.00
    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.
  7. Sky-Watcher Evostar 150DX 150mm Apochomatic Refractor Optical Tube

    Regular Price: $4,100.00

    Special Price $3,199.00

    The Sky-Watcher Evostar 150DX is the most affordable 6" ED doublet refractor available today with a large format rack and pinion focuser.
  8. 6" F/8 achromatic doublet refractor optical tube, CG5/AVX dovetail

    $999.00
    Here's a sensational value - a big 6" (150mm) achromatic refractor optical tube that's priced like other manufacturers' 80mm scopes . . .
  9. Astro-Tech 6" f/9 Ritchey-Chrétien astrograph

    $479.95
    The exceptional value 6" Astro-Tech Ritchey-Chrétien astrograph is once again available for the serious deep space astrophotographer on a budget . .

    Out of stock

  10. Explore Scientific140mm f/6.7 FPL-53 Carbon Fiber APO Triplet Refractor With 3" Hexagonal Focuser

    $5,999.99
    140mm has long been considered the perfect size for an APO refractor. Explore Scientific makes that size a reality with fantastic optics and mechanics.
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