Baader 5mm Hyperion 68° Modular Eyepiece

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Baader 5mm Hyperion 68° Modular Eyepiece

# 2454605

€ 155.00 Price excl. German VAT tax (19%): € 130.25

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  • Fixed focal length of 5mm, 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

Pair price: If you purchase two Hyperion eyepieces with the same focal length, you will automatically get a € 15,- discount during checkout

Product Questions

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I have a Zeiss Diascope 85T and would like to attach the Baader Planetarium Hyperion 5 mm 1.25" Eyepiece - HYP-5 #2454605 using the Baader Zeiss Diascope Bayonet 1.25" Eyepiece Adapter - DIA-BAYO #2454500. However, your Hyperion eyepieces application examples file (download) does not list HYP-5 as compatible with the Zeiss spotting scope with 1 1/4 inch adapter.
From your document - Visual Observation:
The Hyperion 21-/17-13-/8 mm eyepieces may be adapted to the Zeiss spotting scope with the aid of a bayonet-adapter #2454500.
Can the HPY-5 also be adapted to the Zeiss Diascope 85T with 1 1/4 inch adapter (2554500)?
Question by: Fred Vanderburgh on Apr 29, 2019 8:24:00 PM | 1 Answer(s)
What about the Baader 3,5mm Hyperion 68° Modular Eyepiece?
Why has it gone out of production? Should I trust an offer of this used article?
Question by: Marco Cremoncini on Sep 2, 2019 3:43:00 PM | 1 Answer(s)


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.


Additional Information

Manufacturer Baader Planetarium
SKU (#) 2454605
EAN Code 4047825011459
Net weight (kg) 0.44
Eyepiece Series Hyperion
Focal Length 5 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 5,9 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) 80,1 mm
Length of 1¼" barrel (mm) 24 mm
Length of 2" barrel (mm) 47,5 mm
Outer Diameter 58 mm
Outer Connection (eyepiece/-camera-sided) Thread, M43
Inner Connection (lens sided) Thread, M28,5, M48
Outer Connection (lens sided) Barrel, 1¼", 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)

Michael Bethke 71/03/2020 12/03/202010:11
  • Rating:
Dieser Kauf lohnt sich !
Habe mir dieser Tage dieses Hyperion 68° 5mm gekauft ,wie immer von Baader gute sicher Verpackung und wie jedes Okular in einen eigenen Beutel !
Nun habe ich meine kleine Serie zusammen ,31mm-72°;24mm-8mm Zoom Mark IV und das 5mm -68°.
Ergebnis :gute Verarbeitung des Okulars ,Bildqualität sehr gut
Konnte mir den Mond und seine Kraterlandschaften noch feiner beobachten !
Ich kann das Okular weiterempfehlen !
  • gute Bildqualität
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OlliH 284/10/2020 11/10/202007:09
  • Rating:
Sehr gutes Okular mit nur leichten Schwächen.
Ich konnte nun das Hyperion 5mm mal am Mars testen. Die Bildqualität war super, deutlich besser als mit meinen eher günstigen Okularen zuvor.

Leider ist das Hyperion recht groß und schwer. Der Auszug an meinem Bresser 150/750 kommt damit klar, allerdings verbiegt dann der Auszug den Tubus minimal durch das Gewicht. Grundsätzlich kann das Okular nix dafür und ein gutes Okular braucht nun mal auch viel Glas, aber wer mit einem eher günstiges Teleskop den Rat befolgt doch mal ein gutes Okular zu testen sollte sowas im Hinterkopf behalten.

Ansonsten bin ich ein wenig erstaunt über den Tunnelblick des Okulars. Gerade wenn der Hintergrund schön Dunkel ist wird es schwer gerade ins Okular zu blicken. Sobald man gefühlt auch nur einen Millimeter aus der Mitte kommt ist das Bild weg.

Ansonsten bin ich aber sehr zufrieden und hoffe das ich mit ein wenig mehr Übung auch noch mehr Freude an dem Okular haben werde.
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Louis 282/10/2020 09/10/202011:03
  • Rating:
Qualität die Freude macht!
Habe mittlerweile die Hyperions 5 / 10 / 17 / 24 mm und das Hyperion Zoom. Selbst bei eher einfachem Equipment (10 Zoll Dobson und Celestron Nexstar SLT) ist der Unterschied zu den beigegebenen Optiken grandios. Die Verarbeitung, die Haptik, die optische Qualität, das Gesichtsfeld von 68 ° und nicht zuletzt der Augenabstand von 2 cm (für Brillenträger) machen jede "Sternennacht" zur wahren Freude.Also für mich eine klare Kaufempfehlung!
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