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Takahashi TOA-130NS 5.1" F/7.7 Ortho-Apochromat Triplet Refractor OTA
$7,200.00This 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 . . . -
Sky-Watcher Esprit 150mm f/7 ED apochromatic triplet refractor with field flattener
$8,250.00The 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. -
Explore Scientific AR152 6" f/6.5 achromatic doublet refractor optical tube
$979.99This 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. -
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. -
Takahashi TOA-130NFB 5.1" Ortho-Apochromat Triplet Refractor OTA
$8,110.00This 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 . . . -
Explore Scientific 152mm f/8 FCD-1 ED Triplet Refractor, Carbon Fiber, 2.5" HEX Rack and Pinion Focuser
$5,499.99This big and optically excellent 152mm (6") Explore Scientific air-spaced ED triplet apochromatic refractor has a carbon fiber body and a 2.5" Hex rack and pinion focuser. It is superb for visual observing and long-exposure DSLR and CCD imaging. -
Celestron 6" Advanced VX Series Go-To Equatorial Refractor
$1,899.00This 6" f/8 Celestron AVX6R achromatic doublet refractor telescope has anew imaging-optimized Advanced VX Series computerized go-to German equatorial mount that will find and followover 40,000 deep space and solar system objects for you . . . -
Astro-Tech AT150EDL Refractor OTA FCD-100 and Lanthanum f/8 Doublet with Hard Case
$2,995.00The Astro-Tech AT150EDL takes the performance of the it smaller siblings and combines it with the mechanics of the EDT line. -
Takahashi TOA-150B 5.9" F/7.33 Ortho-Apochromat Triplet Refractor OTA
$15,070.00This 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 . . . -
Explore Scientific140mm f/6.7 FPL-53 Carbon Fiber APO Triplet Refractor With 3" Hexagonal Focuser
$5,999.99140mm has long been considered the perfect size for an APO refractor. Explore Scientific makes that size a reality with fantastic optics and mechanics.