What is the Celestron 2-Inch XLT Diagonal Mirror used for?

The Celestron 2-Inch XLT Diagonal Mirror is designed for Schmidt-Cassegrain Telescopes (SCTs) to enhance observational quality. It achieves this by allowing astronomers to view celestial objects at a more comfortable angle and improving light transmission through high-quality coatings. By utilizing a diagonal, the user experiences less neck strain during extended viewing periods and can easily spot stars, planets, and nebulas. This makes it an essential accessory for both amateur stargazers and seasoned astrophotographers seeking superior visual performance.

How does the XLT coating improve performance?

The XLT coating on the Celestron 2-Inch Diagonal Mirror enhances light transmission and reduces unwanted reflections. This results in brighter and sharper images compared to standard diagonals. The specialized coatings are designed to preserve color accuracy and contrast, providing a richer viewing experience. In practical terms, this means clearer observations of faint celestial objects, especially during astrophotography where detail is paramount. Users will appreciate the enhanced contrast when viewing details on the Moon or observing deep-sky objects.

Is the diagonal mirror compatible with all SCT telescopes?

The Celestron 2-Inch XLT Diagonal Mirror is primarily designed for use with Schmidt-Cassegrain Telescopes (SCTs) that support 2-inch fittings. While many popular SCT models can accommodate this accessory, it's important to check your specific telescope’s specifications. Compatibility ensures that you maximize your telescopic experience by fitting the diagonal securely, optimizing optical performance. Therefore, always refer to your telescope's documentation to verify that you are using the right accessories for the best stargazing experience.

What is the advantage of a 2-inch diagonal over a 1.25-inch diagonal?

A 2-inch diagonal mirror, like the Celestron XLT, offers a wider field of view compared to a 1.25-inch diagonal. This larger aperture allows more light to enter, resulting in brighter images and clearer views of lower-brightness celestial objects. Additionally, with a 2-inch setup, astronomers can use a wider variety of eyepieces, enhancing their viewing experience with greater flexibility. This is particularly beneficial for deep-sky viewing where expansive vistas of galactic structures or star clusters are preferred.

Can I use this diagonal for astrophotography?

Yes, the Celestron 2-Inch XLT Diagonal Mirror is suitable for astrophotography. Its high-quality coatings and precision optics help in capturing detailed images of celestial targets. The diagonal's design facilitates the alignment needed for astrophotography, allowing you to mount cameras and other equipment without misalignment. This option is especially valuable for astrophotographers aiming to capture high-resolution images of planets or deep-sky objects while maintaining optimal image quality.

What accessories are recommended to use with the diagonal mirror?

To enhance your experience with the Celestron 2-Inch XLT Diagonal Mirror, consider pairing it with high-quality 2-inch eyepieces and filters tailored for your observations. A good quality barlow lens can also be beneficial, allowing you to magnify your views without sacrificing image quality. Together, these accessories can significantly enhance your stargazing sessions. For example, you can utilize a planetary filter for sharper images of planets, or wide-angle eyepieces for deeper sky observations.

Is installation of the diagonal mirror difficult?

Installing the Celestron 2-Inch XLT Diagonal Mirror is straightforward and can typically be done in minutes. Most users can achieve this by simply unscrewing the existing focuser or diagonal on their SCT telescope and replacing it with the XLT diagonal. The design often includes a thumb screw to secure the eyepiece, ensuring a snug fit. Additionally, it typically comes with detailed instructions to assist new users. This means that even beginners can enhance their setup without requiring extensive technical knowledge.

What is the significance of a diagonal mirror in astronomy?

A diagonal mirror is crucial in astronomy as it allows for more comfortable viewing angles when observing the night sky. Without a diagonal, users may find themselves hunched over, straining their necks during long observation sessions. The Celestron 2-Inch XLT Diagonal alleviates these issues by providing a right-angle view, allowing for more relaxed and prolonged stargazing. This improved ergonomics can enhance overall enjoyment when observing celestial phenomena, making it a favorite among avid astronomers.

Does the diagonal mirror improve clarity in viewing?

Yes, the Celestron 2-Inch XLT Diagonal Mirror significantly improves clarity in viewing by utilizing premium optical coatings and precise mirror alignment. This results in increased contrast and brightness, which are crucial for viewing details on planets and other celestial objects. The clarity offered by this diagonal enhances the overall observational experience, as users will notice finer details and better color fidelity. Thus, it is an ideal enhancement for those looking to maximize their telescopic capabilities.

How to Shop Celestron 2" Star Diagonal for Schmidt-Cassegrain Online From Ubuy?

It’s easy to shop Celestron 2" Star Diagonal for Schmidt-Cassegrain online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.

How Long Does It Take to Get Product After Placing the Order?

The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

Celestron

A good diagonal can make a big difference in the quality of the image you see.

Celestron

Item #: 222136

Celestron 2" Star Diagonal for Schmidt-Cassegrain Telescopes XLT Coating

Q: Where can I buy Celestron 2-Inch XLT Diagonal Mirror (for SCT Telescope) in Tonga?

You can buy the Celestron 2-Inch XLT Diagonal Mirror from Ubuy, which offers a wide selection of telescopic accessories. Ubuy features competitive pricing and a user-friendly shopping experience, making it an excellent choice for obtaining quality astronomy gear in Tonga. Their product listings often include detailed descriptions, customer reviews, and other essential details to assist your purchasing decision.

86% of respondents would recommend this to a friend

Item #: 222136

TOP 689

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

^{*All items will import from US}

Availability : In stock

Imported from USA store

QTY:

Only 18 items left in stock.

Order now and get it around Monday, October 26

Secured transaction

Our Top Logistics Partners

A good diagonal can make a big difference in the quality of the image you see.

U-Care Warranty:

None

Select a Plan

Fast
Shipping

Free
Return^*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Enhanced Viewing

This diagonal mirror improves light transmission and provides a brighter, clearer image, enhancing your stargazing experience with any SCT telescope.

High-Quality Build

Crafted with premium materials, the Celestron diagonal mirror offers durable performance and excellent optics, ensuring long-lasting quality for serious astronomy enthusiasts.

Easy Installation

Designed for straightforward setup, this 2-inch diagonal mirror quickly attaches to your telescope, making it an ideal choice for beginners looking to upgrade their observational capabilities.

Product Details

High-quality 2” SCT mirror diagonal for SCT telescope
Features high performance XLT coatings for enhanced clarity
Housing is precision machined to maintain optical alignment
Includes a 2” to 1.25” adapter for versatility
Comes with an aluminum carry case for easy portability
Mirror undergoes interferometer testing to ensure 1/10th wave quality

Eye Piece Lens Description	XLT coated
Mount	Altazimuth Mount
Focus Type	Manual Focus
Power Source	Manual operation
Finderscope	Reflex
Compatible Devices	SCT Telescope, 2-inch Eyepieces
Coating	XLT
Focal Length Description	1500 millimeters
Field Of View	50 degrees
Zoom Ratio	50x
Additional Features	XLT-Beschichtung, 1/10-Wellen-Qualität, 2"-zu-1.25"-Adapter, Aluminium-Transportkoffer
Objective Lens Diameter	5.1 centimeters
Item Dimensions D x W x H	8"D x 7"W x 7"H (20.3 x 17.8 x 17.8 cm)
Item Weight	0.98 kg
Exit Pupil Diameter	1.02 millimeters
Optical Tube Length Measurement	2 inches
Brand	Celestron
Model Name	Mirror Diagonal with XLT Coatings - 2"
Global Trade Identification Number	00050234935272
Item Highlight	Enhanced Light Transmission, Premium Visual Performance, Bright High-Contrast Views, Accepts 2" Eyepieces, Precision Optics
Manufacturer	Celestron
UPC	050234935272
Number of Items	1
Built-In Media	2” to 1.25” adapter, Aluminum carry case
Model Number	93527-CGL
Manufacturer Part Number	93527-CGL
Telescope Mount Description	Altazimuth Mount
Product Dimensions (L x W x H)	8"D x 7"W x 7"H (20.3 x 17.8 x 17.8 cm)

What's in the box

2” to 1.25” adapter

Aluminum carry case

Who Should Buy?

Astronomy Enthusiasts
Ideal for serious stargazers, providing improved light transmission for clearer views of celestial objects.
SCT Telescope Owners
Perfectly compatible with Schmidt-Cassegrain telescopes, enhancing image quality and usability.
Wide-Field Observers
Designed for users who prefer wide-field observations, maximizing the field of view with minimal distortion.

Beginners
Novice users may find setup complex and could benefit more from simpler, integrated solutions.

Product Description

About This Item

Experience the enhanced viewing experience with the Celestron 2-Inch XLT Diagonal Mirror for SCT Telescope. This high-quality diagonal mirror is designed to deliver crisp and clear images during your stargazing sessions. The Celestron 2-Inch XLT Diagonal Mirror features a 2-inch barrel size, making it compatible with most SCT telescopes on the market. This means you can easily attach it to your telescope without any hassle.

Whether you are a seasoned astronomer or a beginner, this diagonal mirror is a must-have accessory to take your telescope viewing to the next level. Equipped with XLT coating technology, this diagonal mirror ensures maximum light reflection while minimizing glare and ghosting. This means you can enjoy brighter and sharper images of celestial objects, allowing you to observe even the tiniest details with precision. The sturdy construction of the Celestron 2-Inch XLT Diagonal Mirror guarantees long-lasting durability. It is designed to withstand the rigors of regular use, making it a reliable addition to your astronomy equipment.

The sleek and compact design also makes it easy to store and transport, so you can take it with you on your stargazing adventures. Upgrade your telescope's performance and unlock new levels of celestial exploration with the Celestron 2-Inch XLT Diagonal Mirror. Whether you are observing distant galaxies or admiring the beauty of our own solar system, this diagonal mirror will provide you with an immersive and unforgettable viewing experience. Invest in the Celestron 2-Inch XLT Diagonal Mirror for SCT Telescope today and elevate your stargazing journey to new heights. Experience the wonders of the universe like never before with this essential accessory.

Have any Query? Chat with us

Customer Questions & Answers

Question: How to Shop Celestron 2" Star Diagonal for Schmidt-Cassegrain Online From Ubuy?

Answer: It’s easy to shop Celestron 2" Star Diagonal for Schmidt-Cassegrain online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.
Question: Is Celestron 2" Star Diagonal for Schmidt-Cassegrain Available to Shop Online in Tonga?

Answer: Yes, at Ubuy Tonga this product is available for you to shop at a reasonable price. The Celestron 2" Star Diagonal for Schmidt-Cassegrain is not available locally but you can trust us with our express shipping services.
Question: How Long Does It Take to Get Product After Placing the Order?

Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

Celestron Diagonals 93527-CGL Editorial Review

Celestron 2 Star Diagonal for Schmidt-Cassegrain Telescopes XLT Coating offers enhanced light transmission and premium visual performance thanks to its XLT coated optics. This diagonal is compatible with SCT telescopes and 2-inch eyepieces, providing bright, high-contrast views ideal for stargazing. With a manual focus system and an altazimuth mount, it ensures ease of use. Users have praised its precision optics and the included 2-inch to 1.25-inch adapter, making it versatile for various observations. The compact design and lightweight construction contribute to its portability, perfect for amateur astronomers.

Customer Reviews & Ratings

4.7

230 customers ratings

5 Star

87%
4 Star

6%
3 Star

3%
2 Star

2%
1 Star

2%

Review this product

Share your thoughts with other customers

Pros

Enhanced light transmission improves viewing experience
Compatible with SCT telescopes and 2" eyepieces
Precision optics for clear, bright images
Lightweight design makes it portable
Includes a 2" to 1.25" adapter

Cons

Manual focus may take some practice for new users

Platform Trust & Buyer Confidence

4.2/5 9704 reviews

Read reviews

Jasmin

Verified buyer

“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot

Anke

Verified buyer

“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot

Hazel

Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot

Opaleye

Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot

Adele

Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot

WHY SHOP WITH US

Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

TOP 689

Order now and get it around Monday, October 26

QTY:

Only 18 items left in stock.

Secured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners

Fastest cross-border delivery

Features & Benefits

2 diagonal is required for using 2 eyepieces with the telescope.
Larger 2 barrel captures more light for better observation of faint deep sky objects.
Precision machined housing and high-performance mirror coatings for superior image quality.
Compatible with standard Schmidt-Cassegrain telescopes, includes 2 to 1.25 adapter.
Comes with an aluminum case for protection during storage.
Thoroughly tested with an interferometer for precision.

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns ^*, and secure packaging on every order.

Celestron 2" Star Diagonal for Schmidt-Cassegrain Telescopes XLT Coating