Celestron 2" Mirror Diagonal with XLT (93527)
$199.95
Skip to product information
Celestron 2" Mirror Diagonal with XLT (93527)
$199.95
XLT Coatings
Maximum Light Throughput Performance
1/10 Wave Optics
Precision Interferometer Tested Mirror
SCT Compatibility
Direct Threaded Rear Cell Mount
Clearer Deep Space ViewsUpgrade Your Telescope Optical Pathway
The Celestron 2" Mirror Diagonal with XLT Coatings is an essential telescope upgrade designed to maximize light transmission for deep sky stargazing. Featuring precision 1/10 wave optics and proprietary XLT anti-reflective coatings, this diagonal delivers bright, high-contrast images through standard Schmidt-Cassegrain telescopes. Complete with a 2" to 1.25" step-down adapter and protective aluminum storage case, it offers exceptional versatility and performance for discerning amateur astronomers.
Precision Stargazing PerformanceUncompromising Quality for Visual Astronomy
Elevate your astronomical observations with the Celestron 2" Mirror Diagonal with XLT Coatings. As a critical link in your optical system, a 2-inch barrel permits observation through wide-field 2" eyepieces, helping you capture a larger portion of the light cone to reveal low surface brightness objects like faint nebulae and distant galaxies. The robust housing is precision CNC-machined to ensure that your optical alignment remains rock solid over years of field use. Every mirror surface is interferometer tested to guarantee 1/10th wave flatness or better, while Celestron's renowned high-transmission XLT coatings deliver bright, crisp, true-to-life images. Built to thread directly onto the rear cell of SCT telescopes, this diagonal includes a 2" to 1.25" adapter to accommodate smaller eyepieces and an aluminum carry case to safeguard your investment during transport.
Technical SpecificationsOptical and Structural Build Details
Product Type
SCT Mirror Diagonal
Barrel Size
2 Inch
Mirror Accuracy
1/10 Wave or Better
Optical Coating
Celestron High-Performance XLT Coatings
Telescope Connection
Standard SCT Threaded Rear Cell
Eyepiece Adapter
2" to 1.25" Reducer Included
Housing Construction
Precision Machined Metal Body
Included Accessories
Aluminum Carrying Case
Key Accessory FeaturesDesigned for High Performance Stargazing
High-Performance OpticsXLT anti-reflective coatings maximize overall light throughput
Precision Mirror Surface1/10 wave surface accuracy tested with an interferometer
Machined BodyPrecision-engineered housing maintains perfect alignment
SCT Rear Cell MountThreads directly to Schmidt-Cassegrain telescopes
Eyepiece VersatilityIncludes 2" to 1.25" adapter for standard eyepiece compatibility
Protective CaseHard aluminum carrying case provides excellent travel protection
Frequently Asked QuestionsEverything you need to know
Will the Celestron 2" Mirror Diagonal with XLT Coatings work with my Schmidt-Cassegrain telescope?
Yes, the Celestron 2" Mirror Diagonal with XLT Coatings is specifically designed with internal threads to attach directly to the rear cell of standard Schmidt-Cassegrain (SCT) telescopes.
Can I use 1.25" eyepieces with the Celestron 2" Mirror Diagonal with XLT Coatings?
Yes, the Celestron 2" Mirror Diagonal with XLT Coatings includes a 2" to 1.25" adapter that allows you to seamlessly switch between 2" and 1.25" eyepieces.
What benefit do XLT coatings provide on the Celestron 2" Mirror Diagonal with XLT Coatings?
Celestron XLT coatings minimize light reflection loss, increasing overall brightness and contrast to help you observe faint deep-sky targets more clearly.