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Mirror Star Diagonals

Ideal For Use With High-End Telescopes
Many observers prefer to use a good-quality mirror diagonal instead of a prism diagonal with high-end telescope systems. The mirror in these 90&#deg; diagonals are meticulously polished to yield maximum performance. Housings are made of black-anodized aluminum. Barrels are internally blackened.

Each 2" diagonal accepts both 2" and 1.25" eyepieces (with included adapter). The 2" eyepiece holder as two locking setscrews for maximum eyepiece security. These diagonals render images that are right-side up and reversed left to right (therefore, not recommended for terrestrial observing). Diagonals are not recommended for use in reflector telescopes.

Item# Description Price
08850 2" Mirror Diagonal, Refractor $155.00
08851 2" Mirror Diagonal, Schmidt-Cassegrains $155.00
08879 1.25" Mirror Star Diagonal, Enhanced Reflectivity $129.00
Prism Star Diagonals

 

 

Correct-Image Diagonals
Recommended for Terrestrial Observing

For terrestrial viewing with a refractor or Cassegrain telescope, use of a correct-image (or "image erecting") diagonal is desirable. The resulting image will appear upright and nonreversed. Diagonals are not recommended for use in reflector telescopes.

Note: the #7216 45° correct-image diagonal requires 5/8" more focus travel than typical diagonals.

Item# Description Price
078787 1.25" Correct-Image Star Diagonal $ 85.00
07216 1.25" 45° Correct-Image Diagonal $ 95.00
08769 1.25" Prism Star Diagonal $ 75.00
14008 1.25"/ 096" Hybrid Prism Star Diagonal $ 49.00