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William Optics 1.25" 99% Dielectric Dura Bright Carbon Fiber Star Mirror Diagonal

5.0 (7 Reviews) Read Reviews Write Review
Brand William Optics
Part Number D-125D-C-DB
Availability available

Product Info

Manufacturer Description

Introducing New 2015 model William Optics Dura-Bright diagonal - a dramatic step forward in the evolution of mirror diagonals! This 90° 1.25" mirror-type star diagonal from William Optics # D-125D-C-DB has a Dura-Bright mirror with 1/12 wave surface accuracy and dielectric mirror coatings for 99% reflectivity which provides higher contrast and resolution during critical planetary, lunar and binary star observations. Features a 1.25" nosepiece for insertion into refractor telescopes and other 1.25" focuser barrels.

Dura-Bright features 100% real carbon fiber side plates that add that touch of class your scope deserves.

The WO 1.25" 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.

Meticulous Craftsmanship

  • Lock screw for eyepiece/adapter.
  • Big, knurled thumbscrews are easy to turn even with gloves on.
  • Threaded for standard 1.25" filters.

Strikingly Beautiful

  • Patented, elegant design.
  • High-quality machining out of the best aluminum.
  • Internal anti-reflection 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.

Additional specifications

  • Weight = 7.9oz.

Reviews

5.0 (Based on 7 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      Review by Thomas S.
      1553289569
      Mar 22, 2019

      5.0 William Optics 1.25" 99% Dielectric Dura Bright Carbon Fiber Star

      Pros:

      Cons:

      Comments:

      A very beautiful piece of equipment! Can't wait until the weather once cooperates so I can finally use it. Solid and well built and I'm sure it'll perform beyond my expectations.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    2. Guest

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      Review by joe s.
      1525094903
      Apr 30, 2018

      5.0 William Optics 1.25" diagonal

      Pros:

      Cons:

      Comments:

      Great quality product. Fast shipping from Agena.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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      Review by Rhett M.
      1518276010
      Feb 10, 2018

      5.0 W.O. diagonal

      Pros:

      Cons:

      Comments:

      Very good quality mirrors and quality built.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    4. Guest

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      Review by Brenton C.
      1501587140
      Aug 1, 2017

      5.0 WO Diag

      Pros:

      Cons:

      Comments:

      I have a 2'' Duralock and now this 1.25 Dielectric and they are both exceptional build and outstanding performers...WO gear rocks

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    5. Guest

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      Review by Bruce B.
      1499697154
      Jul 10, 2017

      5.0 William Optics Dura Bright Star Diagonal

      Pros:

      Cons:

      Comments:

      I can fault neither the esthetics nor the function of this star diagonal. Good job, Williams Optics!

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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      Review by Ralph F.
      1492708381
      Apr 20, 2017

      5.0 Excellent Diagonal at a Great Price

      Pros:

      Cons:

      Comments:

      Not only great to look at, but a very well made diagonal. High precision alignment, stars look the same with the diagonal in place as they do without the diagonal in place. Much higher quality than the TV diagonal it replaced.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    7. Guest

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      Review by Bill of Madison WI.
      1463270400
      May 14, 2016

      5.0 Not the cheapest but the best

      Pros:

      Compact,Accurate,Easy to Use,Quality Lenses,Strong Construction,Lightweight

      Cons:

      Comments:

      This diagonal is bright, accurate, and lightweight. Perfect complement to smaller travel scopes.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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