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Tele Vue Eyeguard Extender - Twist-on Style 1

Tele Vue Eyeguard Extender - Twist-on Style

by TeleVue
SKU TV-EGE-0020
CA$63.00 - CA$63.00
CA$63.00
CA$63.00 - CA$63.00
CA$63.00
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  • Compatibility: All Tele Vue eyepieces that accept Dioptrx
  • Adjustment: Twist-up variable height extension
  • Function: Increases eyeguard height for non-eyeglass wearers
  • Material: Machined aluminum base with soft rubber eyecup
  • Style: Twist-on replacement for stock eyeguard
2 in stock
Qualifies for FREE Shipping in Canada on orders over $500.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Find Your Perfect Eye Position with the Tele Vue Eyeguard Extender

    The Tele Vue Eyeguard Extender is a purpose-built accessory designed to solve a specific problem for visual observers who do not wear glasses: managing the generous eye relief on modern Tele Vue eyepieces. By replacing the stock eyeguard, this twist-on extender allows you to set a precise, repeatable viewing distance. This eliminates "blackouts" and floating, ensuring you can comfortably hold the ideal eye position to see the entire field of view.

    Precision Twist-Up Height Adjustment

    At the core of the Eyeguard Extender is a simple, robust twist-to-lock mechanism. This allows you to raise the height of the eyecup significantly higher than the stock version. The practical benefit is the ability to brace the side of your eye socket against the cup, which provides a stable optical alignment without requiring you to hover your eye in space. Once you find the perfect height, it stays put, giving you a consistent experience every time you switch back to that eyepiece.

    Comfortable Viewing and Stray Light Control

    The top of the extender features a soft, pliable rubber eyecup that folds down, similar to classic eyepiece designs. This surface is comfortable for long observing sessions and effectively seals out stray light from your surroundings. By eliminating distracting glare from a nearby porch light or laptop screen, you improve your dark adaptation and increase your ability to perceive faint, low-contrast details on nebulas and galaxies.

    Seamless Eyepiece Integration

    The Eyeguard Extender fits all Tele Vue eyepieces that accept Dioptrx, including the Delos and DeLite series. Installation is straightforward: you pull off the eyepiece's rubber eyeguard, slip the extender over the eyepiece top and tighten its inner ring until it locks on. This creates a secure, integrated unit that feels like a natural part of the eyepiece. The only trade-off is that it adds one more small piece of gear to your kit, but for those struggling with eye placement, the performance gain is significant.

    Who Needs the Eyeguard Extender?

    This accessory is specifically for observers who use compatible Tele Vue eyepieces without wearing eyeglasses. Eyepieces with long eye relief, like the Delos series, are designed to allow eyeglass wearers to see the full field. If you don't wear glasses, that extra distance can make it difficult to find the right spot. The extender physically bridges that gap, making the eyepiece far more comfortable and easier to use for extended periods.

  • What problem does the Eyeguard Extender solve?

    It helps observers who don't wear glasses manage the long eye relief of certain Tele Vue eyepieces. It extends the eyeguard, making it easier to find and hold the correct eye position and preventing field blackouts.

    Will the Eyeguard Extender fit my old Nagler eyepieces?

    It fits Tele Vue eyepieces that accept Dioptrx. Among Naglers, Tele Vue's chart lists Dioptrx for the Type 4 22mm, the Type 5 31mm and all Type 6 and Type 7 models, with the Type 6 needing an additional Dioptrx adapter. The Type 5 16mm and the Nagler Zoom do not accept Dioptrx.

    Is this necessary if I observe with my glasses on?

    No, this accessory is not recommended for eyeglass wearers. The long eye relief of eyepieces like Delos is designed for you. The stock eyeguard in its lowest position is the correct configuration for use with glasses.

    How do you install the Eyeguard Extender?

    Pull off and save the rubber eyeguard from the eyepiece. Holding the extender's engraved outer ring, unscrew its inner top ring just enough for the assembly to slip over the eyepiece top, then re-tighten the inner ring until it locks onto the eyepiece.

    Does this work on Tele Vue Panoptic eyepieces?

    It fits Panoptics that accept Dioptrx. Tele Vue's chart lists Dioptrx for the 41mm, 35mm and 27mm Panoptics, and for the 24mm and 19mm with an additional Dioptrx adapter.

  • Product Code EGE-0020
    Compatibility All Tele Vue eyepieces that accept Dioptrx (Nagler T6 and Panoptic 19/24mm need an additional Dioptrx adapter)
    Adjustment Mechanism Twist-lock
    Materials Anodized aluminum body, soft rubber eyecup

    • Eyeguard Extender Housing with Rubber Eyeguard

      × 1

    • Eyelens Cap

      × 1

  • Tele Vue 5-Year Limited Warranty