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William Optics 2" Dura Bright Dielectric SCT Diagonal w/ Built-In Thermometer - D-DIG2D-C-DB-SCT


William Optics Dura Bright 2” Dielectric Diagonal for SCT Telescopes

Check out the William Optics Dura-Bright - a dramatic step forward in the evolution of mirror diagonals!

The William Optics 90° 2" mirror star diagonal has a Dura-Bright 12mm thick mirror and dielectric mirror coatings for 99% reflectivity, providing higher contrast and resolution during critical planetary, lunar and binary star observations as compared to competing diagonals. This Dura-Bright SCT diagonal also features 100% real carbon fiber side plates that add that touch of class your scope deserves. There is even a built-in thermometer with this SCT diagonal.

William Optics 2” Dura-Bright Dielectric SCT Diagonal Highlights

Top-Notch Performance and Brightness

  • Dielectric coating allows 99% reflectivity.

  • High precision 12mm thick mirror substrate flat for optimal image stability.

  • Polished to 1/10th wave accuracy.

  • Accurate design guarantees constant alignment. No further alignment needed.

Meticulous Craftsmanship

  • Includes an SCT adapter. This model is for SCT's only. A 2" nosepiece is available separately if you wish to convert the diagonal for use with refractors, etc.

  • Big, knurled thumbscrews are easy to turn even with gloves on.

  • Threaded for 48mm Filters

Strikingly Beautiful

  • Patented, elegant design.

  • High-quality machining out of the best aluminum.

  • Internal antireflection baffling for highest contrast.

  • Real Carbon Fiber side plates

Superbly Constructed

  • Compression rings are used to prevent barrels from marring.

  • Internal safety stop prevents 2" barrels from hitting the mirror.