Baader Aspheric 31mm 2" Eyepiece

  • 72° Field of View
  • 6 elements in 3 groups
  • Works in both 1.25" and 2" focusers
  • Baader Hyperion Phantom Group Multi-Coatings
  • Baader Planetarium 2 Years Limited Warranty
  • SKU: BAA-2454631
    Stock Status: AVAILABLE (3 - 7 days)


    Product Description
    Baader Aspheric 31mm 2" Eyepiece

    Baader Planetarium has evolved the wide-field astronomical eyepiece to a new level. Introducing the world’s first production Astronomical Eyepieces to use aspheric surfaces, the Baader Hyperion-Aspheric 31mm Telescope Eyepiece. This new technology has allowed Baader to eliminate eyepiece aberrations without the usual penalty of extra lens elements, excessive size and weight, or high cost.

    The Hyperion-Aspheric’s freedom from blackouts, kidney beaning, and lack of distortion combines with their long eye relief to produce a view that is uncommonly comfortable and natural for all users (including eye-glass wearers and users of popular astigmatism correcting lenses).

    The ultra-wide 72° field is extremely flat and distortionless (virtually free of angular magnification distortion)

    Baader’s renowned Phantom Group Multi-Coatings and thorough internal baffling produce an extremely bright and high contrast view that is free of scatter.

    Superb for projection imaging. The Hyperion-Aspherics are threaded to accept the full line of Hyperion Digital T-Rings, for a robust direct attachment of almost any camera. The clever use of 2"x24tpi SCT threads for attaching the 2" barrel permits the Hyperion-Aspherics to directly thread onto the rear cell of popular SCTs. This results in the highest rigidity possible for imaging.

    Dual Barrel Configuration – two barrel sizes are provided with each Hyperion Aspheric. The standard 2” barrel provides the full 72º field size, and a special wide-field 1¼” barrel provides the maximum true field ever in a 1¼” format, with a field stop size of 1.265”(32mm)! - perfect for extracting every bit of field possible in 1¼” telescopes or binoviewers.

    Baader Planetarium 31mm Aspheric 2" Eyepieces Features:
  • Modular design
  • 72° wide apparent field of view
  • Long 18mm Eye Relief for extra viewing comfortable
  • High-index glasses delivers low distortion and astigmatism on scopes as fast as f/4
  • Baader Hyperion Phantom Group Multi-Coatings for superior light transmission
  • Water-White Glasses for crystal clear views, low scatter and excellent color fidelity
  • Suitable for all types of telescope
  • Included Accessories:
  • Soft Leatherette Storage Pouch
  • Baader Winged Rubber Eyecup
  • Additional Information
    Additional Information
    Product Weight (KG) 1
    Focal Length 31mm
    Apparent Field of View 72°
    Eye Relief 18mm
    Number of Lens Elements 6 Elements in 3 Groups
    Coating Phantom Multi-Coating
    BinoView Compatible Yes
    Video Link No
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