Takahashi TOA-150B (OTA) tube only with 50.8/31.75 adapter
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Takahashi TOA-150B (OTA) tube only with 50.8/31.75 adapterTakahashi TOA-150B (OTA) tube only with 50.8/31.75 adapterTakahashi TOA-150B (OTA) tube only with 50.8/31.75 adapter

Takahashi TOA-150B (OTA) tube only with 50.8/31.75 adapter

£13,762.00✓ 2 year warranty
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About this product

Model:  tak_tok15110
Part Number:  TOK15110

The TOA series is a member of Takahashi’s line of triplet refractors.  In the TOA design, three lens elements are used, with the front and rear constructed from ED glass.  The resulting system achieves a high level of apochromatic performance for both visual observation and imaging.  Takahashi engineers have undertaken a complete redesign of the triplet system, completely eliminating spherical aberration while minimising axial chromatic aberration in the visible light spectrum.

In typical apochromatic designs, the elimination of chromatic aberration is usually at the expense of increasing spherical aberration at various wavelengths.  However, with the TOA series, the focal shift across the entire visible spectrum from 436 nm up to 656 nm is less than +/- 0.01 mm.  This is less than 1/100 the aberration of a typical apochromatic design.

TOA-150B

The TOA-150B is a 150 mm apochromatic f/7.3 refractor with a focal length of 1100 mm.  It features a retractable lens hood, a 4 inch rack and pinion focuser with a 7:1 fine focuser, and a 360 degree camera angle adjuster.  A complete line of flatteners, reducers and extenders are available, including the 67-series flattener, which provides a 90 mm imaging circle. 

A tube weight is standard to assist in balancing instrumentation or visual accessories.

  • Aperture - 150mm
  • Focal Length - 1100mm
  • Focal Ratio - F7.3
  • Tube Length - 990mm
  • Tube Weight - 20kg
  • Tube Diameter - 179mm

 

What's in the box

 

In The Box

OTA Only

  • TOA150B Optical Tube with 50.8/31.75 Eyepiece Holder
  • Camera Angle Adjuster

OTA Package

  • TOA150B Optical Tube with 50.8/31.75 Eyepiece Holder
  • Camera Angle Adjuster
  • 7x50 Finderscope
  • Finder Quick Release Bracket (FQR-1)
  • Dual Tube Holder with Top Plate
     

 

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