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Orion Dielectric Twist-Tight Mirror Telescope Diagonals
$119.99 - $179.99
Accepted Payment
  • Twist-tight clamping mechanism grips inserted eyepieces more securely than typical thumbscrew-equipped diagonals - without scratching!
  • 90-degree mirror diagonals features sophisticated dielectric coatings with highly efficient 99% reflectivity for peak performance
  • Durable dielectric mirror coatings provide higher reflectivity for maximum brightness and contrast
  • Machined and anodized aluminum housing features machine-threaded glare baffles to eliminate glare for great performance
  • Nosepiece barrels are threaded to accept like-sized Orion filters

We've given our dielectric mirror diagonals a new twist - literally! With their twist-tight clamping mechanism, Orion Dielectric Twist-Tight Mirror Star Diagonals are a significant upgrade from typical thumbscrew-equipped diagonals. A simple clockwise twist of the knurled red aluminum collar precisely centers any inserted eyepiece or accessory and holds it securely in place.

The innovative twist-tight mechanism keeps your valuable eyepieces free of pesky thumbscrew scratches, and also provides a more secure grip than thumbscrew-equipped diagonals. You'll especially appreciate Orion Dielectric Twist-Tight Mirror Star Diagonals when using a telescope during clear, cold evenings thanks to how easy it is to tighten and loosen the large, knurled collar - even while wearing bulky gloves!

Built around a highly reflective mirror featuring lab-tested dielectric coatings that provide an astounding 99% reflectivity, Orion Dielectric Twist-Tight Mirror Star Diagonals will help you obtain the brightest views possible through a refractor or Cassegrain telescope. Plus, since dielectric coatings are more durable than enhanced aluminum coatings, you'll enjoy year after year of exceptional performance without degradation. To further optimize contrast and brightness, the diagonal's anodized aluminum housing features machine-threaded internal baffles to eliminate pesky internal reflections and glare. Protective caps are included to keep the diagonal free of dust when not in use.

Please note: diagonals are not recommended for use with Newtonian reflector telescopes.


Warranty
Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.