{"product_id":"tele-vue-panoptic-27mm-68-eyepiece","title":"Tele Vue Panoptic 27mm 68° Eyepiece - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e27mm Focal Length\u003c\/li\u003e\n\u003cli\u003e68° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e19mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e30.5mm Field Stop\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\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\u003eTele Vue Panoptic 27mm 68° Eyepiece - 2\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue Panoptic 27mm is often described as the \"pearl\" of the series, offering a sophisticated balance between magnification and true field of view. By utilizing high-index glass in a six-element design, it provides an expansive 68° field that remains sharp and high-contrast across the entire frame. It is the ideal primary low-power eyepiece for a wide variety of telescope types, delivering more \"punch\" and a darker sky background than 35mm or 40mm alternatives while still capturing large-scale celestial structures.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eBalanced Magnification and Field Performance\u003c\/h3\u003e\n      \u003cp\u003eWith a 30.5mm field stop, the 27mm Panoptic serves as a versatile workhorse for scanning the Milky Way or framing mid-sized deep-sky objects like the Orion Nebula (M42). In a standard 8-inch f\/10 SCT, it yields 74x magnification and a 0.9° true field, providing a more detailed view than a 40mm Plössl while effectively suppressing light pollution through its smaller exit pupil. The optical correction is specifically tuned to minimize edge-of-field aberrations, ensuring stars remain pinpoint even in faster f\/5 instruments.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eControlled Astigmatism:\u003c\/strong\u003e The Panoptic design excels at maintaining edge sharpness, preventing the \"smearing\" of stars that often plagues simpler wide-angle eyepieces.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e19mm Eye Relief:\u003c\/strong\u003e This generous distance provides a comfortable viewing experience for most observers, allowing the full field to be seen without strain.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eHandling and Ergonomics\u003c\/h3\u003e\n      \u003cp\u003eWeighing in at just over 1 lb, the 27mm Panoptic offers a substantial feel without being unwieldy, making it easy to balance on smaller mounts. It features a tapered top and a scalloped rubber grip ring for a secure, tactile hold in the dark, even when wearing gloves. The fold-down rubber eyeguard helps block stray peripheral light and provides a stable reference point for eye placement, ensuring a consistent and immersive \"spacewalk\" experience during long observing sessions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eOperational Comparison and System Fit\u003c\/h3\u003e\n      \u003cp\u003eThe 27mm Panoptic occupies a strategic middle ground in the Tele Vue lineup, balancing exit pupil size against field of view.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 24mm Panoptic:\u003c\/strong\u003e While the 24mm is a 1.25-inch format favorite, the 2\" 27mm Panoptic provides a 13% larger true field of view, making it the superior choice for those committed to a 2-inch accessory train.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 35mm Panoptic:\u003c\/strong\u003e The 27mm offers higher magnification and a smaller exit pupil (5.4mm vs 7mm in an f\/5 system), which provides a darker sky background and more detail on faint clusters in suburban skies.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Tele Vue Panoptic 27mm work well with my f\/5 telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, it is excellent for f\/5 systems. It produces a 5.4mm exit pupil, which fits well within the average dark-adapted human eye, ensuring all light collected by the telescope reaches your retina without being wasted.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I wear eyeglasses with the Tele Vue Panoptic 27mm?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe 19mm eye relief is sufficient for many eyeglass wearers to see the entire field. However, if you have thick lenses, you may need to fold down the rubber eyeguard or position your eye carefully to avoid vignetting the edges.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this eyepiece compatible with Dioptrx?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the 27mm Panoptic is compatible with Tele Vue \u003cstrong\u003eDioptrx\u003c\/strong\u003e astigmatism correctors. This allows you to observe without your glasses while still correcting for your specific eyesight astigmatism.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 27mm Panoptic compare to the 31mm Nagler?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe 31mm Nagler provides a much wider 82° field and a larger field stop, but it is twice as heavy and significantly more expensive. The 27mm Panoptic is a more compact and balance-friendly alternative for most observers.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill I see a secondary mirror shadow in my Newtonian?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, with a 5.4mm exit pupil (at f\/5) or smaller, the secondary mirror shadow is typically not visible at night. This only becomes a potential issue with much longer focal length eyepieces in very fast telescopes.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eEPO-27.0\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e68°\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e19 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e30.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e16.4 oz (1.03 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Panoptic-27mm-Eyepiece-1.jpg?v=1776306133\" alt=\"Tele Vue Panoptic 27mm Eyepiece\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e27mm Panoptic Eyepiece\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg\" alt=\"Tele Vue 2-inch Dust Cap\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\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-27mm-Panoptic-Eyepiece-Manual.pdf?v=1776306247\" 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51175033045277,"sku":"TV-EPN-27.0","price":431.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Panoptic-27mm-Eyepiece-1.jpg?v=1776306133","url":"https:\/\/davidastro.com\/en-eu\/products\/tele-vue-panoptic-27mm-68-eyepiece","provider":"David Astro","version":"1.0","type":"link"}