Takahashi TOA-35 0.7X Reducer & Camera Ring - TOA-150, TSA-102/120

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• The TOA-150 0.7X Reducer and Wide Camera Mount Set by Takahashi:

   

  The ideal design for a reducer is its ability to reduce the f-stop while flattening the field and controlling chromatic aberration. The Takahashi TOA-35 0.07x reducer is configured with 4-elements in three groups and uses low dispersion, high refractive index glass for two of the elements, while reducing the focal length by a factor of 30-percent.

  The Tak TOA-35 reducer produces 3 micron stars in the center of the field and 6 micron stars at the edge with a very flat field when used with the TOA-150. Images sizes for the TSA-102 and 120 are 8 microns at center and 12 microns at the edge. There is also an improvement in the color correction on all models. The 0.7X Reducer is supplied with a wide mount, 55 mm adapter to attach the reducer to the customer's camera.

   

  Takahashi TOA-35 0.7x Reducer Specifications:

  • Focal Length (installed on TOA-150): 775 mm
  • Focal Length (installed on TSA-102): 575 mm
  • Focal Length (installed on TSA-120): 635 mm
  • Focal Ratio (installed on TOA-150): f/5.2
  • Focal Ratio (installed on TSA-102): f/5.6
  • Focal Ratio (installed on TSA-120): f/5.3
  • Image Circle (all models): 44 mm
  • Metal Back Distance (all models): 68.5 mm

   

  Note: Image shows both models of the TOA-35 Reducer (TOA-130 & TOA-150/TSA). You will only receive one of them.