Hyperion Zoom 2.25x Barlow lens

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Hyperion Zoom 2.25x Barlow lens

# 2956180

€ 133.00 Price excl. German VAT tax (19%): € 111.76

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  • Specially created for Hyperion ClickStop Zoom Mark III
  • Result in a focal length range of 3,5 to 10,5 mm
  • Modular Design: usable for many applications (visual and photographic)

Product Questions and Answers

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Will this Barlow fit the space between the Hyperion Zoom and the 2" ClickLock Mirror Diagonal when the zoom lens has been directly connected to the diagonal with the 2i to 2a change ring?
Question by: Ollie on Jul 27, 2020 3:16:00 PM | 1 Answer(s)

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Can you tell me the full length of this Barlow with the 1.25 fitting?
I need to source a Barlow that is short so I can achieve in-focus with a DSLR. thanks.
Question by: Neil Whitehead on Jul 16, 2018 9:52:00 AM | 1 Answer(s)

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How to increase magnification app to 4x, i read that T-extenders will do the trick, but of what length? Is the possibility to achieve 3x magnification?
Best regards
Question by: Krzysztof on Aug 28, 2017 12:20:02 PM | 1 Answer(s)

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Can I use this kit with my Brandon Vernonscope 80mm apochromatic F6 480mm focal length?
Thank you!
Question by: Antonio on Sep 21, 2017 2:57:00 AM | 1 Answer(s)

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Hi, this Barlow, used direct with mirror less camera, cover full frame cmos ?

Question by: Silvio on Nov 30, 2021 4:44:00 PM | 2 Answer(s)

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What is the focal length of the Hyperion zoom barlow?
Question by: Craig Towell on Sep 6, 2022 7:39:00 PM | 1 Answer(s)

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Can this Hyperion Zoom 2.25x Barlow lens be used with any eyepiece -- say a 5 mm EP for higher magnification, given your zoom stops at 8 mm -- giving equally good results as with your Mark IV zoom, or would quality be compromised in that case? Thanks in advance.
Question by: Athenea on Feb 23, 2019 12:39:00 PM | 1 Answer(s)

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Hi, can you confirm the size of the image circle when used with an astrocamera at 2.25 x magnification with standard 55mm backspacing using T2 connection?
Question by: Rich on Jan 9, 2023 3:47:00 PM | 1 Answer(s)

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I initially posted this question regarding the Mark IV zoom eyepiece but should have posted it in connection with the 2.25 Hyperion barlow (which I am now doing).

I recently purchased both the Hyperion Mark IV zoom and Hyperion 2.25 barlow and have a question regarding set-up.

While the box for the zoom suggests that the barlow is attached directly to the eyepiece (see caption "thread for Hyperion Barlow" and arrow pointing directly at the eyepiece), the manual (https://www.baader-planetarium.com/en/downloads/dl/file/id/356/product/3117/description_and_recommended_accessories_for_the_hyperion_universal_zoom_mark_iv.pdf) indicates at p. 11 that "the barlow is attached onto the 1¼" nosepiece" (i.e. nosepiece between eyepiece and barlow).

Could you please advise as to the correct set-up? Does it matter one way or the other (my preference would be not using the eyepiece but I am happy to do so if this will improve performance)?

Many thanks in advance for responding at your very earliest convenience. Your kind assistance is much appreciated.

Question by: David Tortell on Apr 12, 2019 2:46:00 PM | 1 Answer(s)

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If I were to use the Hyperion Barlow directly (without Zoom eyepiece) with my Sony A7III (with no lens) for imaging via 12" Skywatcher Dob Goto Telescope. What adapter do I need to attach it, and achieve focus?
Question by: Jaidev on Nov 24, 2021 2:17:00 AM | 1 Answer(s)

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Will this Barlow attach to the older Mark II Zoom?
Question by: Terry on Dec 22, 2018 2:32:00 AM | 1 Answer(s)

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Can this zoom & barlow be used together on the Celestron regal m2 ed [ 65mm]
Question by: stan webster on Apr 3, 2018 9:14:00 AM | 1 Answer(s)

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Is the Main Body of the barlow threaded for 1 1/4" filters?
Thank you.
Question by: Tomats on Feb 28, 2018 9:47:00 PM | 1 Answer(s)

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Is there going to be a new barlow for the new Mark IV Zoom?
Question by: M.Flinn on Apr 9, 2017 10:17:00 AM | 1 Answer(s)

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When the barlow is used with the zoom eyepiece, can a 2-inch filter (or a 1-1/4 inch filter) be attached somehow?
Question by: Jim on Jul 22, 2019 12:24:00 AM | 1 Answer(s)

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Can the main body of the Hyperion Zoom Barlow 2.25X be used with the other Hyperion eye pieces, such as the 8mm #245608, or the 24mm #245624? What would be the proper configuration?
Thank You!
Question by: Don DeLapa on Jul 16, 2017 4:11:33 PM | 1 Answer(s)

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What is difference between Q barlow 2.25 and Hyperion barlow 2.25? Is it possible to click Hyperion Zoom to Q-turret barlow? Thank you
Question by: Ig on Mar 12, 2017 1:10:00 PM | 1 Answer(s)

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I have a newton 130/900 on eq2 and I have to connect my DSLR Canon EOS 100D through Hyperion Barlow; because the focuser is cheap I want to screw the barlow to the focuser thread. Is there an adapter that allows to screw the thread of the Hyperion Barlow (Focuser 1.25") and allows him even to use the 1.25" filters?
Question by: Raffaele A. on Jan 9, 2017 9:00:00 AM | 1 Answer(s)

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I tried to use this Barlow attached to the Hyperion zoom Mark IV but I found that I could not bring planets into focus. My telescope is a Televue Pronto of 480 mm. Is there some other attachment that I need to bring planets into focus?
Question by: Michael Skorulski on Aug 12, 2020 8:30:00 PM | 1 Answer(s)

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The Baader Barlow lenses at a glance

With currently five different barlow lenses in Baader Planetarium's product range, it is not easy to keep track of which model fulfils which function best.

Fluorite Flatfield Converter (FFC) / 3x-8x (#2458200 , € 730,-)

90mm field of view also for medium format cameras - uncompromising quality even for extreme enlargements.

Focus gain: depending on configuration about 1.5-2.6cm

Carl Zeiss 1¼" Abbe Barlow lens 2x (#1603321 , € 477,-)

Legendary Zeiss quality for the common magnification range between 2x and 3x (with additional T-2 extensions). With T-2 connection for cameras or eyepiece clamps. The qualitatively equivalent solution to the Fluorite FFC when smaller field size and smaller post-magnification are desired.

Focus gain: About 3 cm

VIP 2x modular barlow lens, visual and photographic (#2406101 , € 228,-)

Versatile barlow lens for magnifications from 2x, for use with cameras (via T-2 thread) and eyepieces. Calculated for 35mm image diagonal (full format). With additional T-2 extensions it can also be used for slightly higher magnification factors.

Focus gain at 2x: Approx. 3.3 cm

Baader Q-Barlow 1.3x/ 2.25x (#2956185 , € 55,-)

Inexpensive and amazingly high quality Barlow lens for the lower magnification range: In addition to being used as a normal Barlow lens with eyepiece clamp (with factor 2.25x), the Barlow element can also be used as a negative lens group when screwed directly into (almost) all eyepiece sleeves or directly in front of a camera with 1.25" filter thread and then provides a lower magnification of approximately 1.3x. Ideal for adapting a modern planetary camera to the resolution of an already long focal length telescope. Prerequisite: There must be no other elements in the nose piece that would prevent the approximeately 13 mm long Q-Barlow lens group from being screwed in.

Focus gain at 2.25x: About 0.4 cm

Hyperion Zoom 2.25x Barlow lens (#2956180 , € 133,-) Specially designed for the Hyperion Zoom eyepiece, also fits the filter thread of other eyepieces.

With the included T-2 adapter, it can also be used directly on cameras; provides about 2.7x at 55mm working distance and about 2.3x at 25mm.

Focus gain: About 1.1 cm

More information, images results...

... can be found on our detailed Blogpost:

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

Baader Blogpost:
The camera at the eyepiece

Baader Blogpost:
The eyepiece series from Baader Planetarium

Related Articles

Additional Information

EAN Code 4047825026569
Manufacturer Baader Planetarium
SKU (#) 2956180
Net weight (kg) 0.10
Inner Connection (lens sided) M28.5
Outer Connection (lens sided) ø 1¼" (31.75 mm)
Inner Connection (eyepiece/-camera-sided) M28.5
Outer Connection (eyepiece/-camera-sided) M28.5, M42 x 0.75 (T-2)
Magnification (x) 2,25
AR-Coating Phantom Coating® Group
Barrel Size (in) 1¼"
Optical Design Barlow
Speciality Barlow lens

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3 Item(s)

oninoyakamo 162/06/2022 12/06/202202:25
  • Rating:
Perfect for f/7 Telescopes of Aperture 7" or Less
At the Hyperion Zoom's 8mm setting, this Barlow provides the maximum magnification for f/7 telescopes of aperture 7" or less. For moon, planetary, and double star viewing, start at 24mm and zoom in until reaching the atmosphere-limited optimal magnification for the evening. So much better than swapping out Eyepieces!

Barlow isn't necessary for scopes of f-ratios higher than f/7.0
  • Compact design and sharp images
  • Threading Barlow onto the Zoom in the dark
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Sternenfan 309/11/2021 06/11/202114:01
  • Rating:
gute Ergänzung
die Barlowlinse ist die perfekte Ergänzung zu Mark IV Zoom
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Louis 182/07/2020 01/07/202011:40
  • Rating:
Sinnvolle Ergänzung zum Hyperion Zoom
Habe nunmehr die Hyperion Barlow-Linse zum Hyperion Zoom Mark IV gekauft. Dies, nachdem ich seit etwa einem Jahr die Zoom-Optik mit Begeisterung benutze. Mit der Barlow-Linse deckt die Optik den Brennweitenbereich von 3,6 bis 24 mm und dies in hervorragender Art und Weise. Kein Wechsel von Optik und Filter, im Dunklen eine wahre Freude. Deshalb die absolute Kaufempfehlung!
  • Die solide, hochwertige Verarbeitung!
  • Nichts!
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