William Optics Dura Bright Mirror Diagonal
Best premium upgrade for astronomers seeking exceptional optical clarity and durability.
This high-performance mirror diagonal delivers exceptional clarity and contrast for critical planetary and lunar observations. With its precision-engineered dielectric coating and robust carbon fiber construction, it offers a reliable, high-end upgrade for standard Schmidt-Cassegrain systems.
$207.00
at
Agena AstroProducts
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Who it's for
- Visual observers seeking the brightest possible images of faint nebulae
- Astrophotographers and observers who value premium, long-lasting equipment construction
- Owners of high-end eyepieces wanting to prevent cosmetic damage
Who should skip it
- Owners of compact fork-mounted SCTs with limited clearance
- Budget-conscious hobbyists looking for an entry-level upgrade
- Users with small, lightweight mounts or portable travel setups
Performance breakdown
Optical Precision
The 1/12 wave accuracy delivers exceptionally sharp, distortion-free planetary views.
Light Transmission
Dielectric coatings ensure maximum brightness for faint deep-sky objects.
Build Integrity
Carbon fiber and aluminum construction offers a premium, rugged feel.
Equipment Safety
Compression rings and internal stops protect your expensive eyepieces from scratches.
Contrast Performance
Internal baffling effectively eliminates stray light for deeper, richer blacks.
Mounting Versatility
Direct SCT threading is secure but limits use on other telescopes.
Key Specs
Mirror Thickness
12 mm
Surface Accuracy
1/12 wave
Reflectivity
99%
Barrel Diameter
2 inches
Material
Aluminum and Carbon Fiber
Weight
15.8 oz
Mount Type
SCT Threaded Adapter (2 inch x 24 TPI)
Country of Origin
Taiwan
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