William Optics 1.25" Dura-Bright Dielectric Diagonal (Carbon Fiber)

William Optics 1.25" Dura-Bright Dielectric Diagonal (Carbon Fiber)

Description:
The William Optics 1.25" Dura-Bright diagonal sets a new benchmark in optical accessory performance. Featuring a 12mm thick mirror with 1/12 wave precision and 99% dielectric coating, it delivers superior brightness, contrast, and clarity for critical visual observations.

Built with real carbon fiber side panels and a precision-machined aluminum body, it includes internal anti-reflection baffling for maximum contrast. The 1.25" barrel is threaded for standard filters and uses a compression ring to hold eyepieces securely without marring. An internal safety stop protects the mirror from accidental contact.

Elegant in design and crafted to the highest standards, this diagonal is an ideal companion for advanced refractors and high-end telescopes.

Technical specifications:
– Type: 90° mirror star diagonal
– Size: 1.25" (31.75 mm)
– Reflectivity: 99% dielectric
– Mirror: 12mm thick, 1/12 wave accuracy
– Filter thread: standard 1.25"
– Compression ring: yes
– Internal safety stop: yes
– Material: aluminum and real carbon fiber
– Weight: 210 g

Additional information:
Threaded for 1.25" filters. Designed for use with 1.25" focusers. Excellent optical upgrade for demanding visual astronomers.