Baader Planetarium Hyperion Telescope Eyepieces

Item #AAS017-H35
Price:$139.00

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Enjoy 68 Degree apparent field of view - at an amazing price

  • Hyperion's make great afocal projection eyepieces
  • 20mm of eye relief
  • Fits both 1.25 and 2 inch focusers
  • Great for binoviewers and spotting scopes
  • Description

    Baader Planetarium Hyperion Eyepieces are more than just a pretty face!  With a 68 degree field of view, coatings that rival eyepieces costing hundreds of dollars more, and great eye relief, the Baader Hyperion's are the perfect visual eyepiece, however, their innovative auto-locking 2 inch sleeve supports heavy cameras for afocal projection photography with the appropriate Hyperion T-ring.

    Baader Hyperion Multi-Purpose 68 Degree Eyepieces - Great for visual use

    • All Baader Hyperion eyepieces have an optimal 68 degree apparent field of view, the largest accessible to the stationary human eye. The entire field remains visible despite slight involuntary motions of an observer’s head.
    • The annoying "kidney bean effect", the bane of many ultra wide-field eyepiece designs, is completely absent in the Baader Hyperion.
    • Eight lens elements in five groups provide outstanding sharpness and color correction over the entire field.
    • All Baader Hyperion eyepieces have 20mm of comfortable eye relief, with the exception of the 24mm, which has 17mm of eye relief.
    • No vignetting or falloff of illumination near the edge of the field.
    • The use of high-index glass results in minimal distortion and astigmatism.
    • The Baader Hyperion has unsurpassed color fidelity. Many eyepieces that employ cheaper glasses or inferior designs impart a yellow or blue cast to the image. With Hyperion eyepieces white stays white!
    • The most advanced anti-reflection multi-coatings are employed on all ten air-to=glass surfaces for maximum light throughput and brilliant images.  All coatings are carefully matched to the index of refraction for each of the different glass substrates used.
    • The painstaking design and execution of baffling has all but eliminated troublesome stray light and ghost reflections.  Under all conditions of illumination, the interior of a Hyperion eyepiece will appear jet black, testimony to the virtual elimination of stray light.
    • The Hyperion has the shortest field stop position of all wide field eyepieces known.
    • Specifically designed for binocular viewing.  Ideal for use with accessory binocular viewers thanks to a tight barrel diameter (58 millimeters with the removable neoprene rubber grip ring, 56 millimeters with the grip ring removed) that permits interpupillary distance settings of as little as 56 millimeters.
    • Each Hyperion eyepiece in the series is actually two eyepieces in one!  A much longer focal length lens can be created by unscrewing the forward 1.25-inch diameter portion of barrel that houses the negative achromat lens group.  Color correction remains excellent, and the field curvature that results is no greater than in a decent specimen of the 6-element Erfle design.  Removing the negative lens group exposes an M48 female thread so that large-format light pollution and nebular filters can be employed.
    • Thanks to the short 1.25 chrome sleeve of 0.94”, all Hyperion’s are principally compatible with spotting scopes, including high-end units by Leica, Swarovski, and Zeiss.

    The perfect eyepiece for afocal projection imaging

    • The digital camera threads S54 and M43 x 0.75 have been incorporated into the Hyperion eyepiece for compatibility with the Baader Series 54 digital T-rings.  With a Series 54 t-ring installed on the Hyperion, you can attach almost any digital and videocamera without vignetting. These threads are protected by caps when not in use.
    • The vast majority of large digital cameras and camcorders of recent vintage feature an internal zoom lens with a fixed front lens and standard filter threads.
    • The robust construction of Hyperion eyepieces is capable of directly supporting heavy video and film cameras weighing up to 6.6 lb.
    • Hyperion eyepieces are also ideal for use with so-called clamping-style universal digital camera holders, and will precisely support cameras squarely with respect to the optical axis, due to their straight forward cylindrical-shaped outer body.
    • With or without the removable negative lens group, the Hyperion eyepiece is an incredibly sharp projection system.
    • In combination with a short-focus objective as small as 60mm, the same afocal imaging configuration can be employed in industry for monitoring hazardous operations like plasma welding from a safe distance.

     

    Baader Hyperion 3.5mm Eyepiece

    • Focal Length:  3.5mm
    • Barrel Size:  1.25"/2"
    • Lens Elements:  8
    • Lens Groups:  5
    • Apparent Field of View:  68 degrees
    • Parfocal:  Yes
    • Eye Relief:  20mm
    • Field Stop:  4.2mm
    • Weight:  14.32 ounces

    Baader Hyperion 5mm Eyepiece

    • Focal Length:  5mm
    • Barrel Size:  1.25"/2"
    • Lens Elements:  8
    • Lens Groups:  5
    • Apparent Field of View:  68 degrees
    • Parfocal:  Yes
    • Eye Relief:  20mm
    • Field Stop:  5.9mm
    • Weight:  14.14 ounces

    Baader Hyperion 8mm Eyepiece

    • Focal Length:  8mm
    • Barrel Size:  1.25"/2"
    • Lens Elements:  8
    • Lens Groups:  5
    • Apparent Field of View:  68 degrees
    • Parfocal:  Yes
    • Eye Relief:  20mm
    • Field Stop:  9.5mm
    • Weight:  13.05 ounces

    Baader Hyperion 10mm Eyepiece

    • Focal Length:  10mm
    • Barrel Size:  1.25"/2"
    • Lens Elements:  8
    • Lens Groups:  5
    • Apparent Field of View:  68 degrees
    • Parfocal:  Yes
    • Eye Relief:  20mm
    • Field Stop:  11.9mm
    • Weight:  13.79 ounces

    Baader Hyperion 13mm Eyepiece

    • Focal Length:  13mm
    • Barrel Size:  1.25"/2"
    • Lens Elements:  8
    • Lens Groups:  5
    • Apparent Field of View:  68 degrees
    • Parfocal:  Yes
    • Eye Relief:  20mm
    • Field Stop:  15.4mm
    • Weight:  13.65 ounces

    Baader Hyperion 17mm Eyepiece

    • Focal Length:  17mm
    • Barrel Size:  1.25"/2"
    • Lens Elements:  8
    • Lens Groups:  5
    • Apparent Field of View:  68 degrees
    • Parfocal:  Yes
    • Eye Relief:  20mm
    • Field Stop:  20.3mm
    • Weight:  13.58 ounces

    Baader Hyperion 21mm Eyepiece

    • Focal Length:  21mm
    • Barrel Size:  1.25"/2"
    • Lens Elements:  8
    • Lens Groups:  5
    • Apparent Field of View:  68 degrees
    • Parfocal:  Yes
    • Eye Relief:  20mm
    • Field Stop:  24.9mm
    • Weight:  13.86 ounces

    Baader Hyperion 24mm Eyepiece

    • Focal Length:  24mm
    • Barrel Size:  1.25"/2"
    • Lens Elements:  8
    • Lens Groups:  5
    • Apparent Field of View:  68 degrees
    • Parfocal:  No
    • Eye Relief:  17mm
    • Field Stop:  28.5mm
    • Weight:  10.97 ounces

     

     

    Shipping Restrictions

    Only ships in contiguous USA.

  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    This product has a 2 year manufacturer's warranty against defects is provided. If you have specific questions about this product's warranty please contact Alpine Astronomical's Customer Service department by email at service@alpineastro.com.

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

Customer Q&A

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  • Q1: Can you use 2" filters with this eyepiece once you have taken of the 1.25" barrel?

    A: Yes, you can use 2" filters with these eyepieces.

  • Q2: How do you use it as a 2" eyepiece??

    A: This eyepiece comes with a 1.25" barrel inside of a 2" barrel. A M48 thread is located between the 1¼” and 2”
    barrel to adjust the size of the eyepiece.

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