Add review for Celestron C9 1/4 A Telescope w/ Slide Bar and StarBright XLT Coatings
Celestron C9 1/4 A Telescope w/ Slide Bar and StarBright XLT Coatings
CelestronC9-1/4A 22" long aluminum optical tube weighs only 20 lbs., making it easy to transport. CelestronC-9 1/4A has a 9.25 " aperture, a 2350mm focal length, and a focal ratio of f/10. Starbright multicoatings are standard equipment for Celestron-C 9.25" A Telescopes . These include high reflectivity 5-layer enhanced aluminum mirror coatings, plus magnesium fluoride antireflection coatings on both sides of the Schmidt corrector lens. The optics of CelestronC9-1/4A are hand-figured. Hand figuring the optical system is a complex optical procedure done on a commercial basis only by Celestron ....