Takahashi TSA-120 - 120mm f/7.5 APO Triplet Refractor Telescope OTA $5,728.85,Free Shipping,  Takahashi TSA0120, TVF7500, TVF7501, TFK,Optical Tubes (OTA) Telescopes, Best Price
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TAKAHASHI TSA-120 - 120MM F/7.5 APO TRIPLET REFRACTOR TELESCOPE OTA TSA0120, TVF7500, TVF7501, TFK

  Takahashi Optical Tubes (OTA) Telescopes
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Takahashi TSA-120 - 120mm f/7.5 APO Triplet Refractor Telescope OTA

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TAKAHASHI TSA-0120 TRIPLET ED APO OTA W/FINDER, BKT, TUBE HOLDER TSA0120

Item No. 611-50120
Manuf. No. Takahashi TSA0120, TVF7500, TVF7501, TFK

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The Takahashi TSA-120 Triplet APO Refractor has a 900mm focal length (f/7.5) and a tube diameter of 125mm. The Ortho-Apochromatic Triplet Lens incorporates an FPL-53 Extra-low Dispersion glass element sandwiched between crown glass to eliminate chromatic aberration. The weight of the TSA-120 tube assembly is 12.6 pounds and the tube length is approximately 28.25" when collapsed.

The "T" stands for Triplet and an air-spaced triplet design is exactly what you'll get. Inside the precision crafted lens cell, you'll find three elements, two extreme quality crown and flint glass, with an FPL-53 Extra-low Dispersion glass element sandwiched in between. While traditional refractor designs use oil in between elements, Takahashi doesn't... that means no oil to possibly leak out or become opaque with age. The "SA" stand for "Super Apochromat" and Apochromatic means you're free from those strange violet glows which often accompany bright stars or planets.The lens cells are durably constructed to withstand transport - yet are fully able to be collimated should the owner wish to make adjustments. Just like its little brother, the TSA-102S, the optics on the Takahashi TSA-120 will be, we are sure, as near to perfection as you can get! The color free images produced will delight the lunar, planetary and deep sky observer with very high contract images with pin point stars.

Takahashi TSA-120 Specifications

  • Aperture: 120mm
  • Focal Length: 900mm
  • Focal Ratio: 7.5
  • Tube Length with Dew Shield: 990mm
  • Tube Diameter: 125mm
  • Diameter of Dew Shield: 713mm (28")
  • Resolution: 0.97
  • Limiting Magnitude: 12.1
  • Back Focus: 227.5mm (8.93")
  • Weight: 12.6 lbs
  • 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


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