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Baader Planetarium 5mm Hyperion Modular Eyepiece for 1.25" Focusers

SKU: AA2454605 MFR: HYP-5
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Key Features

  • Experience stunning views with this 5mm Hyperion eyepiece, perfect for detailed planetary observation.
  • Enjoy comfortable, extended viewing sessions thanks to the generous 20mm eye relief on this eyepiece.
  • Achieve high magnification power with this Baader Planetarium eyepiece, bringing distant objects closer.
  • The modular design of this eyepiece allows for versatile use with 1.25" focusers, enhancing adaptability.
  • Benefit from exceptional image sharpness across a wide 68-degree field of view with this Hyperion eyepiece.
  • Durable build quality ensures this Baader Planetarium eyepiece will be a reliable tool for years of stargazing.
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Special Order?Estimated to Ship: 09/14/2025
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Questions & Answers

Shopper : Why Did You Choose This?GERALD M : Need upgrade to cheap included 6mm eye piece. In crease power as wellRobert C : Experience with this product and this merchant.

Reviews about this item

Review Summary

2021-11-21T07:38:13

Rated 5 out of 5

Great for Celestron 8SE

Perfect fit for my Celestron 8SE. Great Jupiter viewing. Nice wide view. Unit feels very well made - nice heft to it.

Mark J.

2021-09-03T17:29:52

Rated 5 out of 5

Excellent add-on for the Hyperion Zoom eyepiece!

Excellent add-on for the Hyperion Zoom eyepiece. Under the right seeing conditions it makes Saturn?s rings much more visible, and we even saw color from the surface of Jupiter on first light. Very happy with the purchase and definitely recommend it!

RUSSELL S.

2021-07-02T08:55:39

Rated 5 out of 5

Perfect add-on

Excellent when married up to the Baader Hyperion Mark IV 8-24mm Zoom! What a pairing!

Michael M.

2020-08-21T08:43:02

Rated 5 out of 5

Sharp, works well with the Hyperion Zoom eyepiece

Sharp, complements the Baader Hyperion Zoom eyepiece well. Comes with plenty of adapters to suit it to other eyepiece-scope configurations.

ADAM B.

2019-07-31T03:48:10

Rated 5 out of 5

Awesome lens

It's bigger and heavier than I anticipated, but makes for excellent viewing.

David B.

2018-08-18T10:23:04

Rated 5 out of 5

Hyperion modular eyepiece

This has excellent wide angle. Clear view from edge to edge. Great quality build.

Paul J.

2018-08-15T14:41:24

Rated 2 out of 5

Not as clear as expected.

Lens clarity was less than expected for price. Wide field of view was as described. It’s a rather heavy lens. I did not need a counter balance, but just a word of caution. Using with a 700mm/60mm telescope. Can see Jupiter and moons but not level of detail I’d like. I haven’t used it to see the moon yet. New moon or overcast.

Alexandria J.

2016-05-28T07:09:53

Rated 5 out of 5

Baader Hyperion eyepieces are provide great bang for the buck

I am an experienced amateur astronomer and I am currently converting my primary eyepiece set over to Baader Hyperions. These eyepieces provide a clear, wide field of view that rivals more expensive brands such as Televue. The only feature I don't like it the eyepiece guard which is separate rubber ring and is not incorporated into eyepiece casing.

James F.

2016-04-08T13:08:47

Rated 5 out of 5

Nice eyepiece!

Great contrast and clarity, good color. Nice wide view with good sharpness almost to the edge.

STUART M.

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Baader Planetarium Hyperion Specifications

  • Compatibility

    1.25" Focusers

  • Eyepiece

    5mm / 0.19"

  • Eye Relief

    20mm

  • Weight

    416 g (14.7 oz)

  • UPC Code

    4047825011459

About Baader Planetarium Hyperion

FEATURED REVIEWS

Baader Hyperion eyepieces are provide great bang for the buck

By James F.

I am an experienced amateur astronomer and I am currently converting my primary eyepiece set over to Baader Hyperions. These eyepieces provide a clear, wide field of view that rivals more expensive brands such as Televue. The only feature I don't like it the eyepiece guard which is separate rubber ring and is not incorporated into eyepiece casing.

Nice eyepiece!

By STUART M.

Great contrast and clarity, good color. Nice wide view with good sharpness almost to the edge.

Be captivated by the unparalleled viewing experience offered by the Baader Planetarium HYP-5 Hyperion 68-degree Modular Eyepiece, a top-tier accessory for 1.25" focusers. This isn't just another eyepiece; it's a game-changer for amateur astronomers who crave high-end performance without outspending the cost of their primary instrument.

The Hyperion eyepiece isn't merely a rebranded version of its predecessors. It's a completely redesigned masterpiece that boasts enhanced transmission, superior contrast, and a host of innovative features. Baader Planetarium has meticulously crafted the Hyperion with the world's most advanced optical coatings and exceptional mechanics, all wrapped up in a unique multifunctional design.

Experience the Hyperion's remarkable sharpness and color fidelity across its expansive 68-degree wide, flat-field view, even when used with fast telescopes. Its superior on-axis and off-axis sharpness, coupled with a pitch-black high contrast field, ensures an immersive viewing experience that truly stands out.

Comfort is also a key feature of the Hyperion eyepiece. It offers a generous 20mm of eye-relief and an extra-large eyelens, making viewing notably comfortable and relaxing. Moreover, its optical design is free from the common issues of 'kidney-beaning' and blackouts, ensuring a seamless and enjoyable stargazing experience.

In summary, the Baader Planetarium HYP-5 Hyperion 68-degree Modular Eyepiece is more than just an accessory for your telescope; it's an investment in a superior viewing experience.

Baader Planetarium Hyperion Features

  • Consisting of 8 elements in 5 groups (3.5 mm - 21 mm), the Hyperion optical design delivers outstanding sharpness and color correction over a 68-degree wide apparent field (65 degrees for the 21 mm)
  • The Hyperion optical design has been chosen to deliver a exceptionally comfortable view, thanks to its 20 mm of eye-relief, large eyelens, and a pupil-free of the kidney-beaning and blackouts common in many wide field eyepieces
  • The new 24 mm uses a different optical design and delivers the same outstanding performance over it's 68-degree wide apparent field
  • It is totally free of blackouts and other annoying exit pupil behaviors, delivers long eye relief (17 mm), virtually zero distortion, and is sharp to the edge even in fast telescopes
  • Its flat focal plane is particularly suited to very fast newtonians that use coma correctors. The 29 mm field stop makes the 24 mm Hyperion the widest 24 mm eyepiece. The 24 mm Hyperion is also the smallest and lightest of the Hyperion
  • High grade water-white glasses are used throughout to deliver a crystal clear view with low scatter and excellent color fidelity, free of the yellow or bluish coloration imparted by many other eyepieces
  • Use of high-index glasses delivers low distortion and astigmatism, even on scopes as fast as f/4
  • Baader Planetarium has gone to great lengths to give the Hyperion the most advanced multicoatings ever used on amateur telescope eyepieces
  • The Hyperion Phantom Group multi-coatings and coating equipment are proprietary to Baader and have been designed by coating engineers specifically for the Baader Hyperion, and optimized for each of the glasses used
  • These coatings are applied with the latest thin-film German coating equipment, training, and process controls. The result are coatings that truly rival the best in the world - including the famous Zeiss Abbe Orthoscopic
  • The proprietary Hyperion housings have been engineered by Baader to incorporate careful opto-mechanical design and execution of internal baffling to eliminate stray light and ghost reflections
  • Uncapping the eyelens reveals a pitch black interior, with no distracting and contrast-robbing glints of light from unbaffled lens or metal surfaces
  • Superb fit and finish. Eyepiece barrels are accurate to size, nicely machined, and hard anodized
  • Works in both 1.25" and 2" focusers. The 1.25" barrel is threaded for filters and kept short (0.94") to work well in binoviewers and spotting scopes. Baader's new housing incorporates a full-length 2" barrel (0.94" long) and provides a specially designed tapered locking recess
  • Soft folding rubber eyecups work for both normal and eyeglass users. Each Hyperion comes with protective lens caps and leatherette storage pouch
  • The Hyperion eyelens housing is compatible with the full range of correcting lenses from 1/4 to 3-1/2 diopters. Observers with any astigmatism will really appreciate this feature, no longer needing to wear eyeglasses to see stars as true pinpoints
  • The long 20 mm eye relief of the Hyperion works particularly well with these corrector lenses, without forcing the observer to press their eye close to the lens in order to see the entire wide field
  • Baader Hyperion incorporate some unique and innovative aspects, which are designed to make them the ideal projection eyepiece; the optical design of the Hyperion enables them to work as an extremely sharp wide-field projection eyepiece for even large chip CCD and DSLRs
  • The eyelens barrel has been provided with two different external threads, M43 and M54 (these are covered by the removable rubber eyecups)
  • The front negative lens element is designed to be removed (and exposes an M48 2" filter thread). This converts each Hyperion into a longer focal length high-quality projection eyepiece, giving the imager two choices of focal length with each eyepiece

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

Key Features

  • Experience stunning views with this 5mm Hyperion eyepiece, perfect for detailed planetary observation.
  • Enjoy comfortable, extended viewing sessions thanks to the generous 20mm eye relief on this eyepiece.
  • Achieve high magnification power with this Baader Planetarium eyepiece, bringing distant objects closer.
  • The modular design of this eyepiece allows for versatile use with 1.25" focusers, enhancing adaptability.
  • Benefit from exceptional image sharpness across a wide 68-degree field of view with this Hyperion eyepiece.
  • Durable build quality ensures this Baader Planetarium eyepiece will be a reliable tool for years of stargazing.

What's in the box:

  • Alpine Astronomical Baader Hyperion 68 Degree 5mm Astronomical Eyepiece (1.25"/2")
  • Carrying Pouch
  • Baader Planetarium 2 Year Warranty