Manufacturer: Baader
Product number: BA2956180

EUR 133,00


incl. 19 % VAT (DE)  
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  • On stock
  • Only 3 pcs left in stock





rating: 5.0 of 5
  • Details..
  • Technical data..
  • In the box..
Baader Hyperion 2.25x Barlow Lens with 1.25" and T2 connection
This Barlow lens has been specially designed for the 8-24 mm Hyperion Zoom eyepieces. From the normal focal length range of 8 - 24 mm of the ClickStop Zoom, connecting the Barlow lens results in a focal length range of 3.6 to 10.7 mm with excellent imaging performance for high-resolution sun, moon, planet and double star observation - the sharpness remains unchanged on axis and in the field!

This means that the Hyperion Barlow together with the ClickStop Zoom eyepiece covers the wide focal length range from 3.6 to 24 mm! Even with this Barlow lens, the eyepiece still fits into focusers with both receptacle sizes (1.25", 2").

Like all Baader in-house developments, the Hyperion Zoom Barlow is designed for the widest possible range of applications; with the two supplied adapters it can be used in many ways:
Directly on the Hyperion Zoom (Adapter A)
Directly also on other 1.25" eyepieces (Adapter A)
Via a T2 ring on cameras (with Adapter B)
With a T2-1.25" eyepiece adapter as classic APO barlow lens (with Adapter B)
With a T2 star diagonal mirror or prism as a focal length-extending 90° deflection device (with Adapter B)


Note: You cannot use the Barlow >i>element without an adapter.

Connection to Hyperion Zoom or other eyepiece
The connection is simple: The Barlow lens base element is fitted with the Adapter A and its external thread is screwed into the guidance tube of the Barlow element of the eyepiece. Afterwards you can use either the 1.25" barrel of the Hyperion Barlow or the (previously attached) 2" barrel of the Hyperion Zoom for connection to the telescope.

But you can also screw the Barlow lens with the adapter A (1.25" combi adapter) into the 1.25" barrel of the zoom or any other eyepiece. In this case the focal length extension factor increases from 2.25x to 2.35x.

Connection to a camera or eyepiece holder
Via the supplied Adapter B (T2 photo adapter) the Barlow lens can also be used with all accessories that use the T2 thread.

If only a T2 ring is screwed on in addition to the adapter B, the Barlow lens becomes an excellent teleconverter for the corresponding camera connection. The focal length extension factor can be increased by using T2 extension rings, from experience up to a factor of 4x without any particular loss of field sharpness.

You can also screw a T2 1.25" eyepiece holder (see recommended accessories) onto the adapter B, resulting in a classic apochromatic Barlow lens for 1.25" eyepieces. Accordingly, a T2-2" eyepiece holder results in a Barlow lens for 2" eyepieces. With extension rings, the magnification factor can be increased from 2.25x to up to 4x without any significant loss of quality.

A star diagonal prism or mirror with a T2 thread on the telescope side can also be used, whereby the magnification factor increases here as well.
Type:Barlow lens
Magnification (x):2.25
Optical design:Triplet with anastigmatic flatfield design
AR coating:Phantom Coating® Group
Designed for:Baader Hyperion Zoom eyepiece
Change of the focal length range of the zoom:8-24 mm effectively becomes 3.5-10.5 mm
External connection (telescope side):barrel, 1,25"
Internal connection (telescope side):Filter thread M28.5
External connection (eyepiece/camera side):Threads, M28.5 and T2 (M42x0.75)
Internal connection (eyepiece/camera side):Thread, M28.5
Weight:0.12 kg
Hyperion Barlow lens base element 2.25x
Adapter A for Hyperion Zoom and 1.25"
Adapter B to T2 thread
Dust covers



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Reviews

Written by Simone Nicolini
on 2021-11-09

"Toller Kauf, tolle Qualität, exzellenter Baader"

Written by Christian Detjen
on 2016-06-02

"Habe eine *** bei *** ersteigert. Dieses Teil ( Baader Hyperion) ist um Lichtjahre besser. Manchmal ist teurer auch besser!"

Written by Marco Leite
on 2016-05-04

"This product, like most of Baader merchandise, is of the highest quality. It works very well for planetary astrophotography, specially using Hyperion zoom 8-24mm. The connections for a Canon camera and both a SCT and an 8"" Newtonian were perfect. The optical quality is superb."

Written by Alberto Squillante
on 2016-02-04

"Good item"