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Celestron 90 deg. Angle Diagonal Mirror, 2" with XLT Coating for Schmidt-Cassegrain Telescopes

SKU: CNDIM2XS MFR: 93527
$161.35
$240.95
Save: $79.6 (33%)
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Key Features

  • Enjoy brighter images with this Celestron diagonal mirror's XLT coatings for optimal light transmission.
  • Achieve comfortable viewing angles at 90 degrees, perfect for extended astronomy sessions.
  • Use with Schmidt-Cassegrain telescopes; this 2" diagonal enhances your stargazing experience.
  • Includes a 2" to 1.25" adapter, making it compatible with various telescope eyepieces.
  • Keep your telescope diagonal safe in the included padded aluminum case for easy transport.
  • Backed by a 2-year warranty, this Celestron telescope accessory ensures long-lasting quality.
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Questions & Answers

Greg C : Will this screw on to and mount directly to the back of my celestron 5se? Or will i need a 2" adapter at all?William K : Yes, this threads onto the standard Celestron Schmidt-Cassegrain Telescope/Thread. (SCT) Mine has been working fine. It is an amazing mirror.
JAMES M : Will This attach to a Refractor Telescope with 2" Focusing Tube?ANTHONY M : NO, it attaches ONLY to the rear cell threads of a Schmidt-Cassegrain telescope (the right-hand side of the product image). For attachment to a 2" focusing tube of a Refractor, other manufacturers on the site such as Tele-Vue, Baader, Orion, and Lumicon offer 2" diagonals that will slide directly into the tube.PHILLIP W : Yes, the tube is the same as the eyepiece.
Shopper : Why Did You Choose This?JOHN S : Because of the positive reviews.ANDREW M : Wanted to stick with a Celestron product for my Celestron telescope.GREG E : great equipmentANDREW C : Give me more optionsscot m : low profile, screw in designgokul p : this is for my evolution 8 telescope

Reviews about this item

Review Summary

2021-10-20T09:17:54

Rated 5 out of 5

Great upgrade that is well worth the money.

This is a beautifully engineered luxury item. It yields great views through my Celestron NexStar 8SE when compared to the 1.25 inch diagonal that came with the scope. It also comes with the adapter to allow the use of 1.25 inch eyepieces. That adapter is securely held in place by a screw. Adorama got this item to me in only 4 days which was fantastic as many of the accessories I normally buy come from Chinese sellers and take several weeks in most instances.

Allen R.

2020-10-27T09:28:59

Rated 5 out of 5

Celestron 2" XLT Schmidt-Cassegrain Diagonal

So much better than the standard diagonal that ships with the Celestron Nexstar 8se and allows for 2" eye pieces as another plus!

Richard P.

2019-03-19T10:12:29

Rated 5 out of 5

Great Diagonal

I bought this based on recommendations I read online. Adorama had the best price at the time so I bought it from Adorama. Great diagonal. I have also bought eyepieces from Adorama. I have always received great service and great products from Adorama. I am pretty positive I will be checking their website regularly to see if there are any other things I can't live without.

Larry T.

2018-11-13T08:01:34

Rated 5 out of 5

Great 2" diagonal

The Celesrton 90 degree diagonal is well built with a great finish. The mirror is very flat and very reflective. Great diagonal at a nice price.

Edward H.

2018-06-06T16:19:58

Rated 5 out of 5

Very pleased

Fit, function, and clarity was perfect very happy with this. And the price was great also.

Eugene C.

2016-12-14T12:37:40

Rated 5 out of 5

Great purchase very fast shipping

I really like my celestron star diagnal. It is very well made and threatened on to my c8 perfectly. The XLT coating is very reflective. I have purchased several of these in the past and all were very well made.Aborama shipping is very fast I would recommend this product to anyone

martin H.

2009-02-05T19:00:00

Rated 4 out of 5

Seems to work as advertised

Seems to work as advertised - but this is my first 2" diagnal, so I don't have a lot to compare.

Stargazer

2009-01-21T19:00:00

Rated 5 out of 5

Celestron 90d 2" diagonal mirror

Excellent diagonal for an SCT scope. Connects directly to rear cell using SCT threads. Eyepiece side comes with 2" - 1.25" adapter. Both sizes have compression ring clamps. Glad I bought it for my Nexstar 6SE.

Arctic E.

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2 Accessories for Celestron 90 deg. Angle Diagonal Mirror, 2" with XLT Coating for Schmidt-Cassegrain Telescopes

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About Celestron 90deg Angle Diagonal Mirror

FEATURED REVIEWS

Celestron 90d 2" diagonal mirror

By Arctic E.

Excellent diagonal for an SCT scope. Connects directly to rear cell using SCT threads. Eyepiece side comes with 2" - 1.25" adapter. Both sizes have compression ring clamps. Glad I bought it for my Nexstar 6SE.

Great upgrade that is well worth the money.

By Allen R.

This is a beautifully engineered luxury item. It yields great views through my Celestron NexStar 8SE when compared to the 1.25 inch diagonal that came with the scope. It also comes with the adapter to allow the use of 1.25 inch eyepieces. That adapter is securely held in place by a screw. Adorama got this item to me in only 4 days which was fantastic as many of the accessories I normally buy come from Chinese sellers and take several weeks in most instances.

Are you in search of a durable and high-quality diagonal mirror for your Schmidt-Cassegrain telescope Look no further than the 90-degree Angle Diagonal Mirror, 2" with XLT Coating. This superior optical accessory, crafted by the reputable brand Celestron, is designed to enhance your stargazing experience.

This versatile mirror diagonal is engineered with multi-coated optics, featuring Celestron's premier StarBright XLT coatings. These advanced coatings ensure maximum light transmission, delivering crisp, clear, and bright images, even in low-light conditions.

What sets this product apart is its interferometer-tested 10th wave flat mirror. This feature guarantees precision and accuracy in your observations, making it an ideal choice for serious astronomers and hobbyists alike.

The 2" eyepiece compatibility of this diagonal mirror offers a wider field of view, allowing you to explore the cosmos in greater detail. Whether you're tracking a comet across the night sky or observing the rings of Saturn, this reliable diagonal mirror will not disappoint.

Moreover, this sturdy and reliable diagonal mirror comes with a robust aluminum carrying case. This case provides optimal protection for your optical equipment during travel or storage, ensuring its longevity.

In summary, the 90-degree Angle Diagonal Mirror, 2" with XLT Coating for Schmidt-Cassegrain Telescopes is a testament to Celestron's commitment to quality and innovation. Its high customer rating of 5.0 out of 8 reviews further attests to its performance and customer satisfaction. Enhance your celestial observations with this top-tier optical accessory.

Celestron 90deg Angle Diagonal Mirror Features

  • Celestron's high performance XLT coating for maximum reflectivity (96%)
  • Interferometer tested 10th wave flat mirror
  • All machined housings for accurate optical alignment
  • Aluminum case for storage and protection

Warranty Information

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

Key Features

  • Enjoy brighter images with this Celestron diagonal mirror's XLT coatings for optimal light transmission.
  • Achieve comfortable viewing angles at 90 degrees, perfect for extended astronomy sessions.
  • Use with Schmidt-Cassegrain telescopes; this 2" diagonal enhances your stargazing experience.
  • Includes a 2" to 1.25" adapter, making it compatible with various telescope eyepieces.
  • Keep your telescope diagonal safe in the included padded aluminum case for easy transport.
  • Backed by a 2-year warranty, this Celestron telescope accessory ensures long-lasting quality.

What's in the box:

  • 2 " to 1.25 " Adpater
  • Padded Aluminum Case
  • Dust Caps
  • 2-Year Warranty