Celestron Twist-Lock Dielectric Mirror Diagonal - 2" - 93573 81 mm Refractors Three fans cool the mirror

Three fans cool the mirror and run on batteries

contrast and unaltered image brightness

Lightweight and easy to attach with the included tripod strap

25″ is best for refractors 4″ and under

it’s easy to transport your 8” RASA to the most remote dark sky locations

Celestron Twist-Lock Dielectric Mirror Diagonal - 2" - 93573 81 mm Refractors Three fans cool the mirrorUpgrade Your Old Diagonal With a 2" Size Celestron Dielectric Diagonal with Twist Lock! Enjoy better views through your telescope with this premium diagonal featuring diffraction limited optics and 58 layers of dielectric coatings! The Celestron 93573 Diagonal provides a 90 viewing angle, perfect for more comfortable viewing through refractor and Cassegrain type telescopes. Dielectric coatings create a stunning 99% reflective surface, ensuring the