About this item:
- 2ö 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 2ö to 1.25ö adapter and aluminum carry case
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 2ö diagonal is required if you want to use 2ö eyepieces when observing with your telescope. The larger 2ö barrel allows you to see a bigger percentage of the telescopeÆs light cone, which works wonders for capturing faint deep sky objects with low surface brightness. The Celestron 2ö Mirror Diagonal was built for superior performance. The housing is machined with precision instruments to make sure the optics stay perfectly aligned. The diagonalÆs mirror is tested with an interferometer. The mirrorÆs surface is covered with the same high performance XLT coatings used on CelestronÆs best telescopes, and the result is a sharp, bright image that will satisfy the most discriminating amateur astronomer. This 2ö diagonal threads securely to the rear cell of standard Schmidt-Cassegrain telescopes. To take advantage of the XLT DiagonalÆs extra light throughput, insert a 2ö eyepiece into the barrel. If you want to use 1.25ö eyepieces, slide the included 2ö to 1.25ö adapter into the eyepiece barrel and secure it with the thumbscrew. When youÆre not observing, store your diagonal in the included aluminum case for protection.