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Vixen BT81S-A Astronomical Binoculars - Body Only

SKU : VX-14304

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Product Details

  • Make a great view even better with Vixen's NEW BT81S-A Binocular Telescope. You will see spectacular views of comets and star clusters. The Magnesium Fluoride coated, air space doublet design, dramatically recuces chromatic aberration for magnificent views. This large aperture, 81mm binoculars, deliver crisp, clear images. 


    The BT81S-A is very portable, at just 9 lbs in weight, so that it can easily be taken to all your observing locations. Use with Vixen's NLV or LVW series Eyepieces for fantastic views.

     

    Features:

    • Focal Ratio F/5.9
    • Aperture : 81mm (3.1")
    • Focal length - 480mm
    • Resolving Power: 1.43 arc secconds
    • Features: Carry Handle, Finder Bracket
    Vixen Product Number: 14304
  • specifications

    Aperture81 mm (3.25")
    Camera/Eyepiece Connection1.25" Nosepiece
    Dawes Limit1.43 arcseconds
    Focal Length480 mm
    Focal Ratiof/5.93
    Highest Magnification162x
    Interpupillary Distance Range2.2" to 4"
    Light Gathering Power134x
    Limiting Magnitude13.3
    Optical DesignDoublet Refractor
    Prism TypePorro Prism
    Tube Weight9 lbs
  • included items

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