Used/Demo Istar 150 f/12 Achromatic Refractor w/Moonlight Focuser - SOLD

  • Sale
  • $1,199.00
  • Regular price $1,869.00
  • Used/Demo Istar 150 f/12 Achromatic Refractor w/Moonlight Focuser - SOLD

    • Sale
    • $1,199.00
    • Regular price $1,869.00
    • ITEM #



    • This is a used demo item in very good condition
    • Long focal ratio for great achromatic performance
    • Sturdy aluminum optical tube

    Used/Demo Istar 150 f/12 Achromatic Refractor w/Moonlight Focuser - SOLD

    Unlike so many mass-produced telescopes on the market today, refractors from Istar Optical are created one at a time and then strenuously tested to insure the best quality possible. The optics are manufactured with glass from brand name companies like O'Hara, Schott, and CDGM.

    Each Istar lens is produced with a super flat black-edge masking that eliminates unwanted inner objective glass reflections while improving on resolution. Once completed, all IStar lenses are tested twice. A computer interferometer test is done as well as a full visual test out under the stars. Every lens is engraved with its own serial number, and that number is linked to its set of reports, which are sent to the buyer along with warranty information (5 years).

    A special lens cap is shipped with each telescope that will allow the user to increase or decrease the friction inside of the dew shield by simply loosening or tightening two silver bolts. It is unlike anything else on the market today.

    The optical tube assembly and dew shield for each iStar telescope are produced in Austria and then CNC machined and powder coated in the Czech Republic. The finish of choice is matte black. The textured finish is durable and allows for a sure grip when handling the tube.

    Finally, Istar provides a 2.5" 360 degree rotatable Crayford focuser from Moonlight to finish off your telescope in style. This focuser features two locking screws at angled positions for heavy payload operations as well as a luxuriously smooth dual speed microfocuser, Digital Display Gauge (DDG), 2" to 1.25" adapter, and a thermometer integrated into the focuser knob! Draw tube travel is 3.1" and the whole thing weighs only 3.3 lbs.

      Additional Information

      Aperture150 MM (5.9")
      Dovetail BarYes
      Focal Length1848mm
      Focal Ratiof/12
      FocuserMoonlight Crayford
      Lens CoatingsMulti Coated
      Lens TypeAchromat
      Number of ElementsTwo
      Tube Length72"
      Tube RingsYes
      Tube Weight13.0kg (29.0 lbs)
      Warranty90 Day
    • Istar Perseus 150mm f/12 optical tube
    • Machined aluminum tube rings
    • Losmandy size dovetail bar
    • Moonlight Crayford focuser
    • Original shipping box

    Questions & Answers

    Ask a Question
    • What is the glass combination used in the objective? Thank you

      The Istar 150mm f/12 is a air-spaced doublet.

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