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William Optics Dura Bright Dielectric Diagonals

William Optics Dura Bright diagonals use a 99% reflective dielectric mirror to send light at 90° to the eyepiece, giving a brighter image and a more comfortable viewing angle with refractors and SCTs.

The line includes a 1.25" diagonal for smaller eyepieces, a 2" diagonal for wide-field eyepieces, and a 2" version with a threaded connection for SCT telescopes. They suit visual observers who want a durable, high-reflectivity diagonal.

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CA$228.00 - CA$228.00
CA$228.00
CA$228.00 - CA$228.00
CA$228.00

William Optics 99% Dielectric Dura Bright Diagonal - 2"

WO-D-DIG2D-C-DB
3 in stock

2" Barrel with 90° Viewing Angle 99% Reflectivity Dielectric Coatings 1/12th Wave Precision Polished Mirror 12mm Thick Mirror Substrate for Therma...

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CA$228.00 - CA$228.00
CA$228.00
CA$228.00 - CA$228.00
CA$228.00
CA$190.00 - CA$190.00
CA$190.00
CA$190.00 - CA$190.00
CA$190.00

William Optics 99% Dielectric Dura Bright Diagonal - 1.25"

WO-D-125D-C-DB
1 in stock

1.25" Barrel Diameter 99% Dielectric Coated Mirror 1/12λ Mirror Surface Accuracy 12mm Thick Mirror Substrate 100% Real Carbon Fiber Side Plates ...

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CA$190.00 - CA$190.00
CA$190.00
CA$190.00 - CA$190.00
CA$190.00
William Optics 2" 90° Dura Bright Dielectric Diagonal for SCT threaded Scope
CA$286.00 - CA$286.00
CA$286.00
CA$286.00 - CA$286.00
CA$286.00

William Optics 2" 90° Dura Bright Dielectric Diagonal for SCT threaded Scope

WO-D-DIG2D-C-DB-SCT
1 in stock

Enables use of 2-inch eyepieces for wide-field views 90° viewing angle for comfortable observing at the zenith Dura-Bright dielectric coatings for...

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CA$286.00 - CA$286.00
CA$286.00
CA$286.00 - CA$286.00
CA$286.00