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Takahashi

Takahashi TOA-150B Double ED Triplet Refractor Telescope - Heavy-Duty 4" Focuser

Takahashi TOA-150B Double ED Triplet Refractor Telescope - Heavy-Duty 4" Focuser

Regular price $13,070.00 USD
Regular price Sale price $13,070.00 USD
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SKU:TAK-TOA150B-ED

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PRODUCT DESCRIPTION

The Takahashi TOA-150B Double ED Triplet Refractor is a masterclass in precision engineering and optical excellence. Designed for serious astrophotographers and advanced visual observers, the TOA-150B features an air-spaced triplet lens system using FPL-53 extra-low dispersion glass for unmatched chromatic correction and image clarity.

  • 150 mm (6") air-spaced triplet refractor with double ED elements
  • Achieves 1/12th wave accuracy and 0.992 Strehl ratio for peak image quality
  • High-contrast views and tight star points across the entire image field
  • Huge 90 mm corrected image circle when paired with optional flattener
  • Includes a heavy-duty 4" rack-and-pinion focuser with 225 mm of back focus
  • Focuser supports large camera payloads and 10:1 dual-speed microfocusing
  • Optional Extender TOA enables f/11.68 for high magnification planetary work
  • Internally baffled tube ensures razor-sharp contrast and zero stray light
  • Durable gloss white finish and premium build ideal for transport and longevity

If you're looking for observatory-class refractor performance in a manageable tube, the Takahashi TOA-150B sets a benchmark that few scopes in the world can match.

TECHNICAL SPECIFICATIONS
Feature Specification
Aperture 150 mm (6")
Focal Length 1100 mm
Focal Ratio f/7.3
Optical Design Double ED Triplet Refractor
Corrected Image Circle 90 mm (with flattener)
Back Focus 275 mm
Image Circle Field 1.6x = 1.3°
Limiting Stellar Magnitude 13.4
Highest Useful Magnification 479x
OTA Diameter 179 mm
OTA Weight 44 lbs
Dew Shield Included (Retractable)
Exterior Color Gloss White
Warranty 5 Year Warranty
WHAT’S IN THE BOX?
  • Takahashi TOA-150B 150 mm (6") Triplet Refractor OTA
  • High-precision 4" Focuser with dual-speed knobs (10:1)
  • Camera Angle Adjuster with 360° rotation
  • Retractable dew shield for portability and protection
  • 2" threaded eyepiece holder with 1.25" compression ring adapter
  • Optional finder, handle, and mounting rings shown in product photos (sold separately)
  • 5-Year Manufacturer Warranty
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