Takahashi - TSA-120 Apochromatic Refractor Telescope

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The Takahashi TSA-120 is the second triplet apochromat in the TSA Series. Its superb color correction will provide high contrast images with pinpoint stars across the field.

SKU: TSS0120
Manufactured by:
Takahashi
 

Product Description

The TAKAHASHI TSA-120 refractor is the second issue in the new TSA line of Takahashi Triplet Super Apochromats.  The 3 Element Objective lens set consists of an air-spaced design with a  multi-coated premium quality ED (extra low dispersion) FPL-53 glass lens between 2 broadband multi-coated, optimum quality Crown lenses.  The color free images produced will delight lunar, planetary and deep sky observers with very high contrast images with pin-point stars, precise edge-to-edge clarity, and free of any chromatic abberation.  The Optical Quality and Construction of the TSA120 is quite simply the very best of the best available today!  

The compact size, less than 28" with the lens shade retracted, makes the TSA-120 the perfect airline-ready apochromat. The TSA-120 is great for eclipse expeditions or transport to remote sites.

Not only is the TSA-120 a great visual instrument, but with an optional Takahashi Field Flattener TOA130FF it can be converted into a flat field, 882mm, f/7.3, or with the optional Takahashi Focal Reducer TOA130R a 672mm, f/5.6 wide field imaging platform perfect for a CCD camera or digital SLR. The addition of the optional Camera Angle Adjuster allows the image to be rotated 360° without loss of focus. The Camera Angle Adjuster is also very handy for visual applications to position the included LE-18mm Ocular and Takahashi 1.25" Diagonal Prism, multiple diagonals or Binoviewer in the best, most comfortable position.

The TSA-120 is a compact, high quality, apochromatic, versatile Takahashi, made for the refractor enthusiast who wants a premium, high quality instrument in a relatively compact package. 


Highlights:

  • Aperture: 120mm
  • Focal Length: 900mm
  • Focal Ratio: 7.5
  • Tube Length with Dew Shield: 990mm
  • Tube Diameter: 125mm
  • Diameter of Dew Shield: 713mm (28")
  • Weight: 12.6 lbs
  • Resolution: 0.97
  • Limiting Magnitude: 12.1
  • Back Focus: 227.5mm (8.93")
  • With TOA-35 Flattener:
      Focal Length: 882mm
      Focal Ratio: f/7.3
  • Optical Performance: 7 micron RMS-spot to 20mm off axis
  • Image Circle: 40mm
  • Image Field: 2.6" diameter.
  • With TOA-35 Reducer:
      Focal Length: 672mm
      Focal Ratio: f/5.6
  • Optical Performance: 4 microns RMS-spot on axis, 6 microns 10mm off-axis, 13 microns 20mm off-axis, 40mm/3.4" field.

Specifications

Name Takahashi - TSA-120 Apochromatic Refractor Telescope
Manufacturer Takahashi
Model TSS0120
Custom Stock Status Available - Ships in 3-5 Days
Telescope Aperture 4.1" - 5"
Aperture 4.7"
Diameter 4.92"
Focal Length 900mm
Focal Ratio f/7.5
Focuser 2.7" Rack & Pinion
Highest Useful Magnification 300x
Image circle 40mm
Limiting Stellar Magnitude 12.8
Optical Coatings Fully Multi-Coated
Optical Design Refractor - Apochromatic
Optical Tube Length 28"
Optical Tube Weight 15.4 lb.

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