Baader Prism Diagonal T-2/90° 32mm

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Baader Prism Diagonal T-2/90° 32mm

# 2456005

€ 110.00 Price excl. German VAT tax (19%): € 92.44

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  • Zenith Prisma T-2/90 ° with 32mm Prism
  • Connection objective side: T-2 internal thread
  • Connection eyepiece: T-2 external thread
  • Excellent for Baader Maxbright binoviewer

Product Questions and Answers

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Please can I ask if I can use my "2 Clicklock T2 with this Diagonal and use my 2" Eyepieces without distortion etc ?
Question by: Christopher Edwards on Jan 18, 2022 11:58:00 AM | 1 Answer(s)

Rating of Question

19
I would like to know if I can screw in my Takahashi Extender-Q directly into this prism diagonal or would I need an additional adapter.
Thank you.
Question by: Michael Millan on Jul 24, 2017 9:38:00 PM | 1 Answer(s)

Rating of Question

13
What is the purpose of item # 1508154? Is it necessary to connect the diagonal to the UltraShort SCT adapter?
Question by: Ron Wismer on Mar 7, 2023 1:06:00 AM | 1 Answer(s)

Rating of Question

7
I have a Zeiss Telementor 1 63/840 telescope with the non-rotating helical focuser (wonderfully smooth). The connection on the telescope is the M44 thread. I want to use a prism diagonal with 1.25" eyepiece holder so I can take advantage of my Televue eyepieces. Can you specify all the parts I need to order?
Question by: Andrei Calciu on Aug 7, 2019 11:41:00 PM | 1 Answer(s)

Rating of Question

2
What is the internal thread on the eyepiece side of prism T2-90 degree diagonal #2456005?
Question by: Kevin McCarthy on Aug 20, 2023 1:51:00 PM | 1 Answer(s)

Rating of Question

1
I have a C14 edge with a litecrawler. Moonlite
This leaves me with 78 mm of back focus left.
Just want to make sure that this product will work, and if you have others that you can recommend of higher quality, please do so!!
I have your big one for my TOA150, but that one has 110 mm of optical path. I don’t think it will work….
Question by: Rafa on May 6, 2023 11:25:00 PM | 1 Answer(s)

Rating of Question

-1
I have three additional questions regarding prism diagonal T-2/90° (p/n 2456005):

1: I need to introduce a 90° diagonal between your 0.4X telecompressor (p/n 2450260) and an eyepiece or camera. Prism diagonals have shorter glass path. But will the prism degrade resolution in such a converging beam?

2: Prism diagonal 2456005 is specified with a glass path of 32 mm. Is this measured from the objective face of the diagonal to the TOP of the threaded portion on the eyepiece side? If not how long is the optical length of that distance? I need to know this precisely to ensure that a camera ends up at the correct 74 mm back focus of the 0.4X telecompressor.

3: The male T-2 thread part on the eyepiece side of the diagonal has two dark holes in the photo, which might include two set screws. Do they allow this part to be loosened, rotated, and re-tightened to allow a T-2 thread camera framing angle to be adjusted?

Thank you.
Question by: Kevin McCarthy on Aug 20, 2023 5:50:00 PM | 1 Answer(s)

Rating of Question

-2
Could you tell me please what adapter(s) I would need to connect this diagonal to the hyperion zoom Mark IV?
Question by: Philip Port on Jan 31, 2022 9:20:00 AM | 1 Answer(s)

Rating of Question

-5
Can I use this diagonal safely on an 80mm refractor for projecting an image of the sun without it getting damaged?
Question by: Andy on Jun 27, 2022 8:20:00 PM | 1 Answer(s)

Rating of Question

-6
I am interested in using the T-2 32 mm prism diagonal on my Orion ED80 f7.5 600mm f.l. refractor (bought in 2009). It has a 2" Craford focuser that I would attach it to. I would like to know what adapter I need to attach it to the focuser?

The focuser comes with a long 2" eyepiece holder that I want to remove to reduce the focal distance to the point of attachment to the focuser. That leaves the focuser's exterior threads exposed. The exposed threaded tube's dimensions are: ID = 2" OD = 2-1/8" exposed length is 3/8". I can't find a spec on the threads. but I count 10 threads in that 3/8".

My goal is to gain inward focus, increase contrast and clarity, and convert to the clicklock eyepiece holder. My largest eyepiece is a 32mm Optiluxe. As light conditions limit to planetary, I doubt I would get a longer f.l. eyepiece.
Question by: Stephen Jackson on Apr 13, 2018 5:58:00 PM | 2 Answer(s)

Rating of Question

-10
On the male side, the diameter of theopening reduces when approching the prism. Can 1.25" eyepieces pass thourgh it and reach the prism?
Question by: Thierry on Apr 9, 2020 10:23:00 AM | 1 Answer(s)

Rating of Question

-11
I would like to know if the Baader Planetarium Prism T2 Diagonal 32mm MaxBright (#2456005) and also the Baader Planetarium StarDiagonal Prism T2/90 ( #2456095 ) have the BBHS silver coating on the prism ? I have ask about this here in the states but no one seems to know the answer.
Question by: Max Harrell on Jan 25, 2017 11:13:00 PM | 1 Answer(s)

Rating of Question

-17
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Specifications

Additional Information

Manufacturer Baader Planetarium
SKU (#) 2456005
EAN Code 4047825011336
Net weight (kg) 0.13
Optical Design Star Diagonal Prism
Inner Connection (lens sided) M42 x 0.75 (T-2)
Outer Connection (eyepiece/-camera-sided) M42 x 0.75 (T-2)
Reflection surface Total reflection
Glas path 32 mm
AR-Coating High transmission multi-coated (HT-MC)
Image Orientation Erect image, Mirror inverted
Optical length (mm) 35
Clamping System no clamp
Deflection angle 90°
Inner Diameter / Clear Aperture (mm) 32
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2 Item(s)

MaJur 44/02/2024 14/02/202410:03
  • Rating:
T-2 / 90° Zenitprisma mit 32mm Prisma
Ich habe das Zenitprisma ursprünglich nur zusammen mit

- dem Steckanschluss 2" auf T-2 / M48 (T-2 Bauteil #16), Art. Nr. 2408150 &
- dem Baader 2" ClickLock T-2 (M42i x 0.75) Klemme, Art. Nr. 2956242

bestellt.

Erst nach Lieferung stellte ich fest, dass in dieser Kombination zwingend die

- T-2 Abstimmringe (Set mit 15 Stück), Art. Nr. 2458102

dazubestellt werden müssen, weil sonst der 2" Steckanschlus und die Basis der ClickLock Klemme nicht gleichzeitig vollständig festgeschraubt werden können, ohne sich gegenseitig in die Quere zu kommen. Im beigefügten Bild kann man sehen, dass die Teile sich immer noch sehr nahe kommen, aber sie können sich nicht mehr berühren.

Allerdings ist zu beachten, dass ich am 2" Steckanschluss 2 Ringe und bei der ClickLock Klemme 3 Abstandsringe verwenden musste, damit der direkte Kontakt vermieden wird. Also insgesamt 5 Ringe. Die Produktbilder zeigen jedoch nur insgesamt 3 Ringe, die verwendet werden müssen. Insofern sind die Bilder etwas irreführend.

Anmerken möchte ich auch, dass im Falle der ClickLock Klemme nur noch relativ wenig vom T2 Außengewinde des Zenitprismas übrig bleibt, wenn man drei Abstandsringe anbringt. Ich habe zwar keine Zweifel, dass es hält, dennoch wäre ich etwas beruhigter, wenn man das vielleicht noch besser lösen könnte.




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Vielen Dank für Ihre Bewertung. Wir bedauern das Problem.
Dass die Abstandsringe benötigt werden, dachten wir eigentlich in der Vorab-Anfrage geklärt zu haben, eventuell haben wir uns hier missverständlich ausgedrückt.

Nun zu dem eigentlichen Problem: Wir haben dies nun nochmal überprüft und Sie haben leider recht.
Das Problem ist, dass wir die Anwendungsfotos mit unserem T-2/90° BBHS Zenitprisma #2456095 gemacht hatten, siehe Produktseite. Das Prisma #2456005, das Sie erworben haben, hat ein etwas kleineres Gehäuse. Darum funktionieren die Abstandsringe so, wie auf dem Foto, leider nicht.

Wir bedauern, dass wir dies nicht bedacht hatten. Die Anwendungsbilder wurden bei diesem kleinen Prisma entfernt.
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Magnus 132/05/2023 13/05/202314:57
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Baader Prism Diagonal T-2/90° 32mm
I wanted a smallest-possible-lightpath diagonal to convert my evoguide 50 into a super-luxury finder and widefield scope, and this diagonal, plus the Baader ultra-short T-2 eyepiece clamp, fit the bill perfectly. Not only by its dimensions, but the optical quality matches everything else about this combination.
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