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Tele Vue 60º Everbrite Diagonal - 1.25" 1
Tele Vue 60º Everbrite Diagonal - 1.25" 2
Tele Vue 60º Everbrite Diagonal - 1.25" 1
Tele Vue 60º Everbrite Diagonal - 1.25" 2

Tele Vue 60º Everbrite Diagonal - 1.25"

by TeleVue
SKU TV-DPC-6012
CA$517.00 - CA$517.00
CA$517.00
CA$517.00 - CA$517.00
CA$517.00
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  • Reflectivity: 99% Everbrite Dielectric Coatings
  • Viewing Angle: 60°
  • Barrel Size: 1.25"
  • Construction: Machined Aluminum Housing
  • Eyepiece Holder: Non-Marring Brass Clamp Ring
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  • Description
  • FAQ
  • Specifications
  • In the Box
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  • Warranty

  • A More Comfortable Angle for Refractor Observing

    The Tele Vue 60° Everbrite Diagonal is a specialized 1.25" star diagonal developed by Tele Vue specifically for terrestrial observers, who find its angle far more comfortable than the standard 90°. By combining a more natural viewing posture with benchmark-setting 99% dielectric coatings, this diagonal delivers both ergonomic comfort and maximum light throughput. It is a direct solution for specific observational challenges where comfort translates directly into seeing more detail.

    The Everbrite Dielectric Mirror Advantage

    At the heart of this diagonal is Tele Vue's Everbrite dielectric mirror. This is not a standard aluminum coating. It is an exotic dielectric coating of more than 50 layers that achieves a certified 99% reflectivity across the entire visual spectrum. The practical effect is a visibly brighter image with more accurate color rendition compared to conventional diagonals, which typically offer 88-95% reflectivity. Faint nebula details and subtle planetary hues are transmitted to your eyepiece with minimal loss.

    Why a 60° Diagonal Viewing Angle?

    A 90° diagonal is the standard for astronomy, but Tele Vue developed the 60° Everbrite specifically for terrestrial observers: the 60° angle is far more comfortable for terrestrial observing than the standard 90°. It is the diagonal to reach for when scanning landscapes, wildlife or distant landmarks with a refractor.

    Precision Machined Housing for Permanent Alignment

    The diagonal's body is machined from a solid block of aluminum, ensuring the mirror is permanently fixed in perfect alignment. This robust construction means you can trust the collimation is held securely, night after night, without the risk of shifts that can soften images in less durable designs. The one-piece body provides a rigid, dependable foundation for the high-performance optics it contains.

    Stray Light Control for Higher Contrast

    Image contrast is just as important as brightness. Tele Vue machines anti-reflection threads and internal baffles into the diagonal's interior surfaces. These features are designed to trap and absorb any off-axis stray light that enters the barrel. This prevents unfocused light from reaching the eyepiece, resulting in a darker background sky and making faint objects stand out more clearly against the blackness of space.

    Secure, Non-Marring Brass Clamp Ring

    To protect your investment in high-quality eyepieces, the diagonal uses a brass clamp ring instead of a simple setscrew. When you tighten the lock screw, the soft brass ring compresses gently and evenly around your eyepiece barrel. This provides a secure, centered grip that will not scratch or gouge the barrel, preserving the finish and value of your eyepiece collection.

    A Trade-Off for Specific Applications

    The primary limitation of a 60° diagonal is its specialization. For general astronomical use, especially on equatorial mounts, the traditional 90° angle often remains more comfortable. The 60° design is not a universal replacement but a targeted upgrade for a specific use case: Tele Vue developed it specifically for terrestrial observers, who find the 60° angle far more comfortable than the standard 90°. On a distant ridge line or a bird on a far branch, the difference is immediate: your posture is relaxed, your eye is steady, and you can hold the view for longer.

  • When is a 60° diagonal better than a 90° diagonal?

    Tele Vue developed the 60° Everbrite specifically for terrestrial observing, where the 60° angle is far more comfortable than the standard 90°.

    Will the Tele Vue Everbrite diagonal work with my SCT?

    Yes, this 1.25" diagonal will work with any Schmidt-Cassegrain Telescope that has a 1.25" visual back. However, the ergonomic benefits of the 60° angle are less pronounced on an SCT, where the eyepiece position is already higher and more accessible.

    Is a dielectric diagonal really better than an aluminum one?

    Yes. The Everbrite's 99% dielectric coating is more reflective, more durable, and has a flatter spectral response than enhanced aluminum coatings, which typically reflect 95-97%. This translates to slightly brighter images and more accurate color, and the coating will not degrade over time from exposure.

    Does this diagonal have filter threads?

    Yes, the 1.25" barrel is threaded to accept standard 1.25" astronomy filters, allowing you to easily add a moon filter, light pollution filter, or color filters to your observing setup.

    How does the 60° Everbrite compare to the 90° Everbrite?

    Both use the same 99% reflective Everbrite coating. Besides the angle, the 60° model has an unusually long optical path, so it may not reach focus in some refractors with limited in-travel. Choose the 90° for general use, especially on equatorial mounts, and the 60° for terrestrial viewing, where Tele Vue finds its angle far more comfortable than 90°.

  • Model DPC-6012
    Type Mirror Diagonal (Star Diagonal)
    Viewing Angle 60°
    Barrel Size 1.25"
    Coatings Everbrite 99% Dielectric
    Eyepiece Holder Brass Clamp Ring
    Filter Threads Yes (Standard 1.25")
    Body Material Machined Aluminum
    Telescope-Side Connection 1.25" barrel

    • Tele Vue 60º Everbrite Diagonal - 1.25"

      × 1

    • 1.25" Dust Cap (Top)

      × 1

    • 1.25" Dust Cap (Bottom)

      × 1

  • Tele Vue 5-Year Limited Warranty