Dura Bright 1.25" 90° mirror star diagonal

A dramatic step forward in the evolution of mirror diagonals!

This mirror-type star diagonal has a dielectric mirror coatings for 99% reflectivity which provides higher contrast and resolution during critical planetary, lunar and binary star observations.

Top-Notch Performance and brightness:

• 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:

• Lock screw for eyepiece or adapter
• Big, knurled thumbscrews are easy to turn even with gloves on
• High-quality machining out of aluminum
• Internal antireflection baffling for highest contrast
• Real Carbon Fiber side plates

Superbly Constructed:

• Compression rings (both on diagonal and adapter) to prevent barrels from marring
• Internal safety stop prevents 1.25" barrels from hitting the mirror
• Designed for high-end scope