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TOA-150B refractor

Description

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.

Characteristics

Takahashi TOA-150B refractor

Characteristic Takahashi TOA-150B refractor
Optical design 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 TOA-35FL field corrector
Focal length 1080 mm
Focal ratio F/7.2
Image circle diameter 40 mm
Metal back distance 117.5 mm
With 67FL field corrector
Focal length 1090 mm
Focal ratio F/7.3
Image circle diameter 90 mm
Metal back distance 106.2 mm
With TOA-35RD focal reducer
Focal length 775 mm
Focal ratio F/5.2
Image circle diameter 44 mm
Metal back distance 62.5 mm
With EX ED1.5X focal extender
Focal length 1650 mm
Focal ratio F/11
Image circle diameter 44 mm
Metal back distance 117.5 mm

Takahashi TOA-150B refractor

Characteristic Takahashi TOA-150B refractor
Length of the optical tube 1270 mm (1110 mm with retracted dew shield)
Diameter of the optical tube 179 mm
Diameter of the dew shield 206 mm
Weight 15.2 kg
Focuser 4'' (112 mm) Rack-and-pinion with microfocuser 1/7

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

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

Spot-diagram of Takahashi TOA-150B refractor with 67FL field corrector

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

Documentation

System-charts

System-chart of Takahashi TOA-150B refractor Télécharger
System-chart of Takahashi TOA-150B refractor with 67FL field corrector Télécharger
System-chart of Takahashi TOA-150B refractor with TOA-35RD focal reducer Télécharger
System-chart of Takahashi TOA-150B refractor with EX ED1.5X focal extender Télécharger

Instruction manuals

Instruction manual of Takahashi TOA-150B refractor Télécharger

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

gallery

Helix Nebula by APO Team

Horsehead Nebula by APO Team

The Large Magellanic Cloud by APO Team

NGC6188 & NGC6164 by APO Team