{"product_id":"tele-vue-eyeguard-extender-twist-on-style","title":"Tele Vue Eyeguard Extender - Twist-on Style","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCompatibility: Tele Vue Delos, DeLite, Nagler T6 (7, 9, 11, 13mm), Panoptic (19, 24mm), and Ethos-SX (3.7, 4.7mm) eyepieces\u003c\/li\u003e\n\u003cli\u003eAdjustment: Twist-up variable height extension\u003c\/li\u003e\n\u003cli\u003eFunction: Increases eyeguard height for non-eyeglass wearers\u003c\/li\u003e\n\u003cli\u003eMaterial: Machined aluminum base with soft rubber eyecup\u003c\/li\u003e\n\u003cli\u003eStyle: Twist-on replacement for stock eyeguard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eFind Your Perfect Eye Position with the Tele Vue Eyeguard Extender\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision Twist-Up Height Adjustment\u003c\/h3\u003e\n\u003cp\u003eAt 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eComfortable Viewing and Stray Light Control\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSeamless Eyepiece Integration\u003c\/h3\u003e\n\u003cp\u003eThe Eyeguard Extender is engineered to perfectly match the threads and aesthetics of specific Tele Vue eyepiece lines, including the Delos and DeLite series. Installation is straightforward: you simply unscrew the original eyeguard housing and twist the extender into its place. 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWho Needs the Eyeguard Extender?\u003c\/h3\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat problem does the Eyeguard Extender solve?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Eyeguard Extender fit my old Nagler eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is not compatible with all Naglers. It is specifically designed for newer models with twist-up eyeguards, such as the 7mm, 9mm, 11mm, and 13mm Nagler Type 6 eyepieces. Check the official compatibility list before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this necessary if I observe with my glasses on?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do you install the Eyeguard Extender?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou unscrew the entire stock eyeguard assembly from the top of the eyepiece. The Eyeguard Extender then screws directly onto the same threads, replacing the original part completely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this work on Tele Vue Panoptic eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but only on specific models that feature the modular eyeguard design. It is confirmed to fit the 19mm and 24mm Panoptics. It will not fit older Panoptics with simple roll-down rubber eyecups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Code\u003c\/td\u003e\n\u003ctd\u003eEGE-0020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eTele Vue Delos (all), DeLite (all), Nagler T6 (7, 9, 11, 13mm), Panoptic (19, 24mm), Ethos-SX (3.7, 4.7mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment Mechanism\u003c\/td\u003e\n\u003ctd\u003eTwist-lock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eAnodized aluminum body, soft rubber eyecup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTele Vue Eyeguard Extender\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Eyeguard_Extender_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/tele-vue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTele Vue 5-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223880466717,"sku":"TV-EGE-0020","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Eyeguard_Extender_1.jpg?v=1777515022","url":"https:\/\/davidastro.com\/fr-eu\/products\/tele-vue-eyeguard-extender-twist-on-style","provider":"David Astro","version":"1.0","type":"link"}