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TOA-150B

The Triplet Ortho-Apochromat concept of the TOA refractors makes it possible to combine sharpness and extraordinary contrast.

Available configurations

TOA-150B refractor

Reference : [TOK15100]
[TKA00552] - Finder 7x50
[TKA00563] - Finder bracket for 7x50 finder
[TKA32420] - Tube rings 179WT
[TOK15110] - TOA-150B refractor OTA

TOA-150B refractor OTA

Reference : [TOK15110]

The Triplet Ortho-Apochromat concept of the TOA refractors makes it possible to combine sharpness and extraordinary contrast. This unique optical formula, based on a highly air-spaced ED triplet, has the advantage of completely eliminating spherical aberration while having the best chromatic correction in the Takahashi telescopes range. TOA excels in both high planetary resolution and deep sky imaging, fully exploiting the capabilities of cameras with the largest sensors.

The TOA-150B is equipped with an oversized 102 mm (4") rack-and-pinion focuser (with 1/7 microfocuser), a CAA (Camera Angle Adjuster) ring for photographic framing, an FQR-1 base for 7x50 finder scope and a retractable dew shield. It can be combined with the TOA-35 RD 0.7x field flattener but also the 67 FL super-corrector offering an incredible 92 mm image circle.

The TOA-150B is the flagship of the Takahashi refractors. It is resolutely turned towards imaging. It supports, without mechanical constraints, the heaviest photo setups including large sensor CCD cameras.

Specifications

Optical specifications
Lens ED Triplet Ortho Apochromat
Lens cell Highly air-spaced triplet. 3 lenses/3 groups. 2 x S-FPL53 ED lenses.
Coatings Hard multicoatings
Diameter 150 mm
At prime focus
Focal length 1100 mm
Focal ratio F/7.3
Metal Back Distance 275 mm
With field-corrector TOA-35 FL
Focal length 1080 mm
Focal ratio F/7.2
Image circle diameter 40 mm
Metal Back Distance 117.5 mm
With Super-flattener 67 FL
Focal length 1090 mm
Focal ratio F/7.3
Image circle diameter 90 mm
Metal Back Distance 106.2 mm
With focal reducer TOA-35 RD
Focal length 775 mm
Focal ratio F/5.2
Image circle diameter 44 mm
Metal Back Distance 62.5 mm
With Extender EX-ED1.5X
Focal length 1650 mm
Focal ratio F/11
Image circle diameter 44 mm
Metal Back Distance 117.5 mm
Mechanical specifications
Length of the optical tube 1270 mm (1110 mm avec pare-buée rétracté)
Diameter of the optical tube 179 mm
Weight 15.2 kg
Focuser 4'' (102 mm) Rack-and-pinion with microfocuser 1/7

Spot diagrams

TOA-150B at prime focus

Spot-diagram of the Takahashi TOA-150B refractor at prime focus

TOA-150B with field corrector TOA-35 FL

Spot-diagram of the Takahashi TOA-150B refractor with field corrector TOA-35 FL

TOA-150B with Super-flattener 67 FL

Spot-diagram of the Takahashi TOA-150B refractor with Super-flattener 67 FL

TOA-150B with focal reducer TOA-35 RD

Spot-diagram of the Takahashi TOA-150B refractor with focal reducer TOA-35 RD

System-charts

TOA-150B main system-chart Download  
TOA-150B with focal reducer TOA-35 RD Download  
TOA-150B with Extender ED1.5X Download  

Instruction manual

TOA-150B instruction manual Download  

gallery

Helix Nebula by APO Team

Horsehead Nebula by APO Team

The Large Magellanic Cloud by APO Team

NGC6188 & NGC6164 by APO Team

TOA-150B refractor
TOA-150B refractor
TOA-150B refractor OTA
TOA-150B refractor OTA