Baader 31mm Hyperion Aspheric Eyepiece - 1.25"/ 2"

  • Sale
  • $169.00
  • Regular price $209.00
  • Baader 31mm Hyperion Aspheric Eyepiece - 1.25"/ 2"

    • Sale
    • $169.00
    • Regular price $209.00
    • ITEM #



    Baader 31mm Hyperion Aspheric Eyepiece - 1.25"/ 2"

    Baader has taken wide field eyepieces to a new level with the Hyperion 31mm Aspheric Eyepiece, bending their considerable technical expertise towards the creation of a refined and effective wide field eyepiece. The aspheric surfaces used within these exemplary new eyepieces utterly eliminate eyepiece aberrations in a much cleaner and more efficient way than was previously possible, utterly bypassing such pitfalls as extra lens elements, excessive size and weight, or higher cost.

    Baader's Hyperion Aspheric eyepieces have been designed with projection imaging optimization in mind, and where created to be compatible with all Hyperion Digital T-Rings. This means that the Hyperion Aspheric Eyepiece can be attached to an incredibly wide array of cameras as well as telescopes. The design makes very efficient use of 2"X24tpi SCT threads with the 2" barrel. This feature allows these splendid eyepieces to attach directly onto the rear cell of most SCT's for maximum imaging rigidity.

    Additional Information

    Case IncludedNo
    Dust Caps IncludedYes
    Eye Guard IncludedYes
    Eye Relief 18.5mm
    Eyepiece Apparent FOV72 degrees
    Eyepiece Eye Relief18mm
    Field Stop32mm
    Focal Length31mm
    Lens Elements & GroupsNot supplied by manufacturer
    ModelBaader Hyperion Aspheric
    Optical DesignHyperion Aspheric
    Warranty1 Year Warranty

    Customer Reviews

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    Questions & Answers

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    • What adaptor would be needed to attach my DSLR to this eyepiece?

      The Hyperion 31mm Aspheric has a 43mm thread on top when you remove the eyecup, so the adapter that you need is the Baader BA-HTA43/T2, which then converts the thread to a standard T2 thread. At that point, you would add a T-ring for your camera and possi

    • What is the maximum AFOV with the 1.25-inch barrel?

      Baader States that the AFOV for this eyepiece is 55 degrees with the 1.25" barell.

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