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Description
Celestron 90-Degree Mirror Diagonal (2") for SCT ScopesUpright, Laterally Reversed Images Fits Catadioptric 2" 18 Rear Threads Starbright XLT Coatings The Celestron 90 Degree Mirror Diagonal (2") is a star diagonal with StarBright XLT coating, for use with Schmidt Cassegrain telescopes with the 2" 18 threaded device. Star diagonal is the term commonly associated with 90 mirror diagonals such as this, which let you view objects that are at a 90 angle from the direction the telescope is pointing. This
- Upright, Laterally-Reversed Images
- Fits Catadioptric 2"-18 Rear Threads
- Starbright XLT Coatings
The Celestron 90-Degree Mirror Diagonal (2") is a star diagonal with StarBright XLT coating, for use with Schmidt-Cassegrain telescopes with the 2"-18 threaded device.
Star diagonal is the term commonly associated with 90° mirror diagonals such as this, which let you view objects that are at a 90° angle from the direction the telescope is pointing. This allows quite comfortable viewing when the telescope is at or near the zenith ( directly overhead ), and is fairly comfortable when observing terrestrial imagery as well-albeit a bit unorthodox at first.
Celestron's erect image diagonals are Amici prism designs, meaning that images are upright and laterally correct. This design, however, instead renders images which are laterally reversed but are brighter than erect image diagonals. This diagonal is used with 2" focusers and can be used with either 2.00" or 1.25" eyepieces, thanks to the included adapter which reduces the eyepiece barrel diameter to accept the smaller size.
- StarBright XLT coating system offers multi-layer enhanced mirror coatings, which shift the peak reflectance to the center of the visible spectrum. The coating process uses state-of-the-art thin film vacuum deposition technology. To ensure consistent optical coatings of the highest quality the process is tightly monitored and controlled by highly trained coating technicians.
- Improved attachment design features a brass clamping ring which does not mar, and provides a more secure connection.
- Accepts 2" filters for astronomical applications.
| Weight | Body : 0.88 lb ( 400g ) Eyepiece Adapter : 0.19 lb ( 85g ) |
| Packaging Info | |
|---|---|
| Package Weight | 2.9 lb |
| Box Dimensions (LxWxH) | 8.3 x 7.3 x 7.1" |
- 2" to 1.25" Eyepiece Barrel Diameter Reducer
- Padded Aluminum Case
- Dust Caps
- 1-Year Warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy