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Celestron 2-Inch XLT Diagonal Mirror (for SCT Telescope)

  • Make sure this fits. by entering your model number.
  • 2 SCT mirror diagonal with high performance XLT coatings
  • 1/10th wave mirror is tested with an interferometer to ensure quality
  • Housing is precision machined to achieve and hold good optical alignment.
  • Includes a 2 to 1.25 adapter and aluminum carry case
  • Product Dimensions: 7 x 8 x 8 inches
  • Item Weight: 2.8 pounds
  • Shipping Weight: 2.8 pounds
  • Item model number: 93527

There are few telescope accessories that work as hard or matter as much as a
diagonal!  An integral part of the optical chain, a good diagonal can make a
big difference in the quality of the image you see.  A 2” diagonal is required
if you want to use 2” eyepieces when observing with your telescope.  The
larger 2” barrel allows you to see a bigger percentage of the telescope’s
light cone, which works wonders for capturing faint deep sky objects with low
surface brightness.The Celestron 2” Mirror Diagonal was built for superior
performance.  The housing is machined with precision instruments to make sure
the optics stay perfectly aligned.  The diagonal’s mirror is tested with an
interferometer, and is guaranteed to be 1/10 wave or better.  The mirror’s
surface is covered with the same high performance XLT coatings used on
Celestron’s best telescopes, and the result is a sharp, bright image that will
satisfy the most discriminating amateur astronomer.This 2” diagonal threads
securely to the rear cell of standard Schmidt-Cassegrain telescopes.  To take
advantage of the XLT Diagonal’s extra light throughput, insert a 2” eyepiece
into the barrel.  If you want to use 1.25” eyepieces, slide the included 2” to
1.25” adapter into the eyepiece barrel and secure it with the thumbscrew.
When you’re not observing, store your diagonal in the included aluminum case
for protection.


Most orders are shipped within 1-2 business day with standard shipping and tracking number. Tracking information will be automatically uploaded as soon as the item has been shipped.

Please make sure to provide the correct shipping address during checkout as the address
cannot be changed after checkout. We are not responsible for any incorrect or
undeliverable addresses.

We do not ship to Alaska/Hawaii, APO/FPO or US Protectorates


You may return most new, unopened items within 30 days of delivery for a refund, minus a 20% restocking fee. If the return is a result of our error, we'll provide a prepaid return label and the restocking fee will be waived. Items must be returned in the condition they arrived in. The box, UPC bar code, packaging, and all other accessories must be returned. Open software, music, games, movies, and personal hygiene products are not eligible for returns.

Filed under: Eyepieces & Accessories