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Baader Planetarium T-2 Star Diagonal Prism

SKU: AA2456095 MFR: T2-01B
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Key Features

  • Achieve optimal viewing with this Baader Planetarium T-2 star diagonal prism.
  • Enjoy brighter images with the 1.34" aperture, perfect for detailed astronomy.
  • Features 7-layer multi-coatings to maximize light transmission for clearer views.
  • Use with your telescope for comfortable viewing angles and enhanced image quality.
  • Durable, machined aluminum housing ensures long-lasting performance of this prism.
  • Upgrade your telescope accessories with this high-quality Baader Planetarium diagonal.
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Special Order?Estimated to Ship: 08/15/2025
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Questions & Answers

Shopper : Does it plug into wall and light up the bedroom ceiling?JOEL B : Sure. Why not. Doesn't all optical prisms do that? Of course, I wanted to use it on a telescope... Go figure.thomas68 t : No, this diagonal is used for telescope!!!MICHAEL F : This item with additional adapters is used to hold eyepieces so you can view through a telescope at 90 degrees, I hope this answers your question..............RegardsPERRY H : Sorry, no. You've got the wrong "Star Diagonal Prism." This one goes on the viewing end of a telescope. Good try, tho!!! ;-}
Shopper : Why Did You Choose This?chris d : Value

Reviews about this item

Review Summary

2017-03-26T09:11:20

Rated 5 out of 5

Instant Improvement

I just received my first telescope and decided to do some research about it and telescopes in general. Most reviewers I read recommended updating the telescope's diagonal from the stock version that came with it. The Baader seemed to have been recommended by more folks than others, so I opted to go for it. While my stock diagonal was just fine and I was thrilled with the images I saw using it, I noticed an instant improvement in the clarity of the objects I was viewing with the new diagonal. So far I'm extremely happy with new the Baader!

Durrell D.

2016-06-03T06:17:54

Rated 5 out of 5

Very good quality prism

Very good quality prism, well constructed. My order was filled quickly and shipped very quickly. The price is the same everywhere.

JAMES L.

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Baader Planetarium T2-01B Specifications

  • Coating

    7-Layer Multi-Coatings

  • Aperture

    1.34" (34mm)

  • Housing

    Machined aluminum housing

  • UPC Code

    4047825011299

About Baader Planetarium T2-01B

FEATURED REVIEWS

Instant Improvement

By Durrell D.

I just received my first telescope and decided to do some research about it and telescopes in general. Most reviewers I read recommended updating the telescope's diagonal from the stock version that came with it. The Baader seemed to have been recommended by more folks than others, so I opted to go for it. While my stock diagonal was just fine and I was thrilled with the images I saw using it, I noticed an instant improvement in the clarity of the objects I was viewing with the new diagona...

View full Review

Very good quality prism

By JAMES L.

Very good quality prism, well constructed. My order was filled quickly and shipped very quickly. The price is the same everywhere.

Experience the unparalleled clarity and precision of the Baader Planetarium T-2 Prism Star Diagonal, a standout in the realm of astrophotography equipment. This prism star diagonal, crafted by the renowned Zeiss, is the very same prism used in their highly acclaimed APQ telescopes, ensuring a level of quality that is second to none.

The T-2 Prism Star Diagonal boasts Baader Planetarium's signature 7-Layer Multi-Coatings, a feature that guarantees bright, high-contrast images. Its oversized prism offers a generous full clear aperture of 1.34" (34 mm), providing an expansive field of view for capturing the night sky's most breathtaking sights.

Unlike other diagonals that use weak plastic or crudely cast housings, the T-2 Prism Star Diagonal is housed in a precision-machined aluminum casing. This robust construction ensures stress-free mounting and a precise location for the prism, contributing to its durability and reliability.

Renowned for its extremely low scatter and high contrast images, this prism diagonal is a game-changer for astrophotographers. Whether you're using a fine refractor over f/7 or an SCT, the Baader Planetarium T-2 Prism Star Diagonal delivers the sharpest and highest contrast images, matching or even surpassing the image quality of the finest mirror star diagonals.

Invest in the Baader Planetarium T-2 Prism Star Diagonal and elevate your astrophotography experience to new heights. This innovative and versatile tool is a must-have for every astronomy enthusiast and professional astrophotographer.

Baader Planetarium T2-01B Features

  • High-quality prism star diagonal from the reputable Baader Planetarium
  • Features a right-angle prism produced by Zeiss, used in their renowned APQ telescopes
  • Boasts Baader Planetarium's signature 7-Layer Multi-Coatings for bright, high-contrast images
  • Offers a generous full clear aperture of 1.34" (34 mm) for a broad field of view
  • Housed in a precision-machined aluminum casing for stress-free mounting
  • Delivers extremely low scatter and high contrast images, ideal for astrophotography enthusiasts and professionals

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

Key Features

  • Achieve optimal viewing with this Baader Planetarium T-2 star diagonal prism.
  • Enjoy brighter images with the 1.34" aperture, perfect for detailed astronomy.
  • Features 7-layer multi-coatings to maximize light transmission for clearer views.
  • Use with your telescope for comfortable viewing angles and enhanced image quality.
  • Durable, machined aluminum housing ensures long-lasting performance of this prism.
  • Upgrade your telescope accessories with this high-quality Baader Planetarium diagonal.