William Optics 2" Carbon Fibre Diagonal

Group Test Winner!!

Group test winner in the Sky at Night November 2007 issue

“William Optics’ reputation for high quality and competitive prices- two features that are usually exclusive- is done no disservice by this diagonal….The William Optics unit had no shortfalls. Optically and mechanically it was excellent, the price was reasonable, and an SCT thread adapter was included in the box”

William Optics 2" Carbon Fibre Diagonal

If what you are looking for is the highest achievable brightness, contrast and sharpness during critical observations with high-end instruments, WO 90° 2" mirror Dielectric star Diagonal is your choice. This dielectric diagonal features 100% real carbon fiber side plates that add that touch of class your scope deserves. A premium product at a discounted price. Check it out and see the difference between a "budget diagonal" and a real bargain!

Free SCT adapter with each diagonal

Top-Notch Performance and brightness

• Dielectric coating allows 99% reflectivity
• 10mm thick substrate flat for optimal image stability
• Polished to 1/10th wave accuracy
• Accurate design guarantees constant alignment. No further alignment needed

Meticulous Craftsmanship

• 2" to 1.25" eyepiece adapter included
• Lock screw for eyepiece/adapter
• Big, knurled thumbscrews easy to turn even with gloves on

Strikingly Beautiful

• Patented, elegant design
• High-quality machining out of the best aluminum
• Internally antireflection threaded for highest contrast

Superbly Constructed

• Compression rings (both on diagonal and adapter) to prevent barrels' marring
• Internal safety stop prevents 2" barrels from hitting the mirror