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New 2015 William Optics 2" Rotolock Durabright diagonal .
1.25" adapter is not included!
-Just rotate the adapter ring clockwise to lock any inserted accessory, or counter-clockwise to release the accessory. Innovative design ensures that you get a very solid hold and the accessory is perfectly centered every time. No thumbscrews to worry about! The internal ball bearings and detents make this adapter a joy !
The New 2015 Rotolock 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.
Dura-Bright features 100% real carbon fiber side plates that add that touch of class your scope deserves.
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.
• Patented, elegant design.
• High-quality machining out of the best aluminum.
• Internal antireflection baffling for highest contrast.
• Real Carbon Fiber side plates
• Internal safety stop prevents 2" barrels from hitting the mirror.
• Designed for high-end scope such as FLT-98, FLT-110 , GT/GTF102 and FLT-132.