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This is a WO 2" Durabright Dielectric diagonal, including the 1.25" adapter. It is in excellent condition, with clean optics and body. Includes both dust caps, but no box.
The William Optics Dura-Bright diagonal - a dramatic step forward in the evolution of mirror diagonals!
This 90° 2"mirror-type star diagonal has a Dura-Bright 12mm thick mirror and dielectric mirror coatings for 99% reflectivity which provides higher contrast and resolution during critical planetary, lunar and binary star observations.
The WO 2" Dura-Bright Diagonal was designed with several unique features to provide optimum performance and years of use.
Top-Notch Performance and brightness
• Dielectric coating allows 99% reflectivity.
• high precision 12mm thick mirror substrate flat for optimal image stability.
• Polished to 1/12th wave accuracy*.
• Accurate design guarantees constant alignment. No further alignment needed. • 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
• Internal safety stop prevents 2" barrels from hitting the mirror.