William Optics 1.25" 90degree Dura Bright Dielectric Diagonal

William Optics 1.25" 90degree Dura Bright Dielectric Diagonal

❖ Experience a significant boost in image brightness, contrast, and overall clarity when compared to basic diagonal options!

   ➤   Equipped with a Dura-Bright thick mirror and advanced dielectric mirror coatings delivering an impressive 99% reflectivity.
   ➤   Precision-polished to 1/12 lambda surface accuracy.
   ➤   12mm thick mirror substrate for superior optical performance.
   ➤   Threaded for compatibility with 1.25" filters.
   ➤   Features a compression ring to prevent damage or marks on eyepiece barrels.
   ➤   Integrated internal safety stop ensures that 1.25” eyepiece barrels never touch the mirror surface.

Presenting the 2014 edition of the William Optics Dura-Bright Diagonal - a remarkable innovation in the evolution of mirror star diagonals!

This 90° 1.25" mirror-style star diagonal includes a high-grade Dura-Bright thick mirror, enhanced with dielectric mirror coatings offering 99% reflectivity. The result? Improved contrast and fine resolution, especially valuable during planetary, lunar, and double-star observations.

The Dura-Bright also boasts authentic 100% real carbon fiber side panels, lending a sophisticated, premium finish to your telescope setup.

The WO 1.25" Dura-Bright Diagonal has been expertly engineered with distinct features for superior functionality and enduring performance.

❖ Top-Notch Performance & Brightness

   ➤   Dielectric coating provides ultra-high 99% reflectivity.

   ➤   12mm thick, high-precision mirror substrate ensures outstanding image stability.

   ➤   Polished to exacting 1/12th wave surface accuracy.

   ➤   Designed for permanent alignment - no need for future adjustments.

❖ Meticulous Craftsmanship

   ➤   Secure locking screw for eyepiece and adapter placement.

   ➤   Oversized knurled thumbscrews - easy to grip, even with gloves.

   ➤   Threaded to support 1.25" standard filters.

❖ Striking Design

   ➠   Patented and elegant aesthetics.

   ➠   Precision-machined from premium-grade aluminium.

   ➠   Internal anti-reflective baffling ensures maximum contrast.

   ➠   Side panels crafted from real carbon fiber - adds style and functionality.

❖ Superbly Constructed for Long-Term Use

   ➠   Compression rings included (on both diagonal and adapter) - protect against barrel scratches.

   ➠   Built-in internal safety stop prevents 2" eyepieces from contacting the mirror.

   ➠   Ideal for pairing with high-end telescopes and precision optics.