Baader 8mm Hyperion 68° Modular Eyepiece

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Baader 8mm Hyperion 68° Modular Eyepiece

# 2454608

€ 165.00 Price excl. German VAT tax (19%): € 138.66

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  • Fixed focal length of 8mm, 68° field of view – ease of view even at high magnifications!
  • High quality Phantom Group-Coating in Zeiss class for complete freedom from reflections with maximum contrast
  • 1¼" and 2" barrels included, thus variable focal lengths
  • Includes many threads for camera and accessory adaptation, afocal and classical eyepiece projection is possible

Product Questions and Answers

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The 13 mm Hyperion says I can use fine tuning rings. What is the difference between a 13 mm Hyperion with a tuning ring or just purchasing an 8 mm Hyperion eyepiece? Do I lose clarity or brightness or? Thanks for your reply!
Question by: Jeffrey on Feb 21, 2022 11:03:00 PM | 1 Answer(s)

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I have a Celestron Regal M2 80 mm spotting scope and was interested in buying some fixed focal length eyepieces to add to my original Celestron zoom eyepiece.

I read on the website that some spotting scopes have difficulty getting infinity focus with your Baader Hyperion eyepieces and therefore, with your 8-24 mm zoom eyepiece, additional (spacer ) rings are provided to achieve this.

The website specifically refers to Celestron Ultima spotting scopes. Do you know if this is also the same with Celestron Regal scopes or not?

If it is, can these rings [a] be purchased and [b] will they fit on your other Baader Hyperion eyepieces?

I was specifically interested in the Baader Hyperion 68 degrees 8 mm and the Baader 31/36 mm Hyperion Aspheric eyepieces.
Question by: Gareth E Williams on May 13, 2020 10:59:00 AM | 1 Answer(s)

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Baader Hyperion 68° Modular Eyepiece

Make the most from your telescope!

Most telescopes are supplied with one or two simple eyepieces in the set, which do not exploit the performance of the optics. Moderate contrast and sharpness and small field of vision quickly spoil the fun of the sky observation. With Hyperion eyepieces you get everything out of your telescope!

They are suitable for photo! Keep your Astro eyepiece impressions forever by connecting the cameras and camcorders at the Hyperion!

You can distinguish between the series with "Prime lenses" f = 5 mm, 8 mm, 10 mm, 13 mm, 17 mm, 21 mm, 24 mm, the two great eyepieces aspheric 31 mm and 36 mm, as well as the Hyperion zoom eyepiece with infinitely variable focal length of 8 mm to 24 mm.

The 68° "Fixed Focal Length" - series of the Hyperion eyepieces

Hyperion zoom on the Celestron spotting scope
The word fixed focal length is here in this brief description in quotes because you are treated as a user by the modular structure of the eyepieces in the position to change the focal length. The fixed focal length Hyperion eyepieces are Multi function eyepieces .

A variety of ways

Connection of cameras and camcorders

The Hyperion eyepieces have above ("eye-side") two system thread. To expose them, either the eyecup or the large thread protection ring must be removed. For one, it's an M43 thread and continue to a second with SP54 thread; the M43 thread (system thread 1) accessories, E.g. for the normal eyepiece projection is used for connection of T2. A M34 on T2 transition ring (Hyperion M43/T-2) is to switch threads between them (known as afocal projection), the thread SP 54 (system thread 2) is used for connecting digital cameras or camcorders, where the lens can not be removed.

Variable focal lengths with fine tuning rings
Please click to enlarge

Focal length variability and filter insert

A variety of additional Hyperion focal lengths can be obtained by using our 2" fine tuning extensions rings 14mm and 28mm, or even with our 2" eyepiece filter set. Thus an eyepiece of 5mm focal length can be converted into one of 2.6mm focal length - without loss of sharpness - above all, because no additional lenses are introduced into the bean, which is unavoidable when using a Barlow lens. Also you can of course astronomical 1¼" eyepiece filters in the 1¼" screwing the eyepiece barrel.

Accessory case included with the Hyperion beginner set and complete set. Also available separately.

Further focal modification there are tweaking our rings (FTR) with 14 - and 28mm length. The different possible focal lengths when removing the first lens group, and in combination with filters and fine tuning rings can be found in the table above.

Stop ring (#2958097): Another "clever" accessories for our Hyperion eyepieces is the stop ring. It can be used, the insertion of the eyepieces set so that each eyepiece gives a sharp image instantly when plugged into a 2" diagonal mirror.

Hyperion eyepieces 6-page user manual

Due to the wealth of functions, there is the Baader Hyperion eyepieces own, 6-page instruction manual to explain the variety of connection options of cameras and all the possibilities of the focal length fine tuning.

Hyperion fixed focal length eyepieces on the Zeiss Diascope spotting scope

The Hyperion fixed focal length eyepieces are also at Zeiss Diascope spotting scopes can be used. You will need the Baader Diascope eyepiece bayonet 1¼ "Adapter (#2454500) for the connection of 1¼" Astro eyepieces on the Zeiss Diascope spotting scopes. He is using the 1¼" socket of the Hyperion eyepiece pushed and fixed by means of 3 small screws on the socket. The Diascope spotting scope is the Zeiss bayonet ready available, so that the complete unit Hyperion Zeiss spotting scope used eyepiece and Baader bayonet adapter directly into the Zeiss spotting scope.

Baader Phantom Coating® Group

Baader Phantom Group Coating is a 7-layer broadband coating with extremely low residual reflection. The term "Group" indicates that for each type of glass of the lenses, which come into the Hyperion eyepieces to apply, each effective anti-reflection layer system was expected.

All these various anti-reflection coatings on each glass surface were then optimized so that they are most effective where the human eye has its highest sensitivity at night - at about 520 nm - in the green region of the spectrum.

The best anti-reflection appears almost colourless: this proves that the anti-reflective coating over the entire visible spectrum is equally good effect. Phantom Group anti-reflection coatings are - depending on the type of glass - almost entirely colourless. In this way it is ensured that the least amount of light for a night-adapted eye is lost without any stray light.

If a multi-coated lens (eyepiece or lens) with direct view from the front shows a strong green reflex, then it is not phantom group to a Baader anti-reflective coating! The intensive green reflex is a sign of a little sophisticated coating technique and means that in the spectral range between 500-550 nm the most light is reflected, i.e. is lost.


Furhter information, image results...

Baader Blogpost:
The eyepiece series from Baader Planetarium

Baader Blogpost:
The camera at the eyepiece

Baader Blogpost:
Barlow lenses, their magnification factors and working distances

Related Articles

Additional Information

Manufacturer Baader Planetarium
SKU (#) 2454608
EAN Code 4047825011442
Net weight (kg) 0.41
Eyepiece Series Hyperion
Focal Length 8 mm
Apparent Field of View 68°
Eye Relief (mm) 20 mm
AR-Coating Phantom Coating® Group
Parfocal Eyepieces Yes
Barrel Size (in) 1¼", 2"
Optical Design Modular
Speciality Eyepiece projection: afocal, Eyepiece projection: classical
Eyepiece Design
Field Stop Diameter 9,5 mm
Field Stop Displacement to reference plane -23,5 mm
Number of Lens Elements 8
Number of Groups 5
Slip Protect Safety Classic Undercut
Eyepiece Body above Reference Plane (mm) 67,8
Length of 1¼" barrel (mm) 24 mm
Length of 2" barrel (mm) 47,5 mm
Outer Diameter 58 mm
Outer Connection (eyepiece/-camera-sided) M43
Inner Connection (lens sided) M28.5, M48
Outer Connection (lens sided) ø 1¼" (31.75 mm), ø 2" (50.8mm)
Camera Thread M43, SP54
Threaded for filters Yes
Included Items
Dustcaps 1¼" dustcap (31,8mm), 2" dustcap (45mm), 2" dustcap (46.5mm - fits over eyecup)
Eyecups folding eyecup (M43)
Included Accessories Soft-leather bag
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3 Item(s)

Peter B 208/07/2021 28/07/202118:57
  • Rating:
Great moderate focal length, dual 1.25" &2" barrels
A very comfortable to use eyepiece in the 8mm focal length.
68 degree is quite wide for most users. This eyepiece represents outstanding quality
at a reasonable price. A lovely Baader feature is that the Hyperions will fit
both 1.25" and 2" focusers/diagonals. Nice fit and finish with an easy to identify colour
band (not that that helps much in the dark). I use this unit mainly for Hydrogen-Alpha solar observations where it performs better than some wider field eyepieces with more elements. I also think the Baader multi-coatings make a difference.
Overall highly recommended for those seeking to balance quality vs price.
  • Optical quality, fit and finish
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Chevalrouge 155/06/2021 05/06/202108:09
  • Rating:
Hyperion 8 mm
Das Okular deckt sehr gut den oberen Leistungsbereich in Bezug auf eine sinnvolle Maximalvergrößerung meines 5-Zoll-Maksutow ab (V 188, V 218 mit Filter, V 250 mit Feintuningring 14 mm). Wenn die Experimentierfreude ausbricht V 300 mit dem 28 mm Feintuningring. Und das - gute Sicht vorausgesetzt - in bester Qualität bei meinen Lieblingsobjekten, dem Mond und den Planeten.
Einziger offener Wunsch: dass endlich der Binokularansatz MaxBright II geliefert und sofort ein zweites Exemplar des Hyperion 8 mm erworben werden kann.
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eugene partyka 03/01/2019 04/01/201910:45
  • Rating:
Hyperion 8 mm.
Da ich ein Anfänger bin, kann ich hier nur eine subjektive Erfahrung präsentieren. Ich verwende den Hyperion 8 mm zusammen mit meinem Carl-Zeiss Diascope 85 T-FL und einem 200 mm Richey-Chrétien. Für den nächtlichen Astro hatte ich vorerst keine Zeit, deshalb habe ich das Vario D 20-60x (25,1-8,4 mm fokal) Zoom-Okular am Diascope durch das Hyperion 8mm für terrestrische Beobachtungen ersetzt. Beim Vergleich von 8 mm vs. 8,4 Vario D-Zoom würde ich sagen, dass ich in der Dämmerung den Hyperion 8 mm vorziehen würde. Ich bin auch sehr zufrieden mit dem Hyperion 8-mm-Bildergebnissen bei 6, 5 und 4,3 mm. Natürlich habe ich große Erwartungen, wenn ich Jupiter und Saturn mit dem Hyperion 8 mm über den R-C-Viewer betrachten möchte.
Ich habe lange zwischen dem Morpheus 4,5 mm und dem Hyperion 8 mm gezweifelt, schließlich habe ich mich für den Hyperion und dessen modularen Einsatz entschieden. Angesichts der guten Ergebnisse des Hyperion wird der Kauf des Morpheus 4,5 mm nur rechtzeitig verschoben.
Mit freundlichen Grüßen, eugene.
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