{"title":"TeleVue","description":"\u003cp\u003e\u003cstrong\u003eTele Vue\u003c\/strong\u003e is known for some of the most refined eyepieces and optical accessories in astronomy. Built to exacting standards, Tele Vue products are valued for sharpness, contrast, excellent edge correction, and consistent performance across a wide range of telescopes. At \u003cstrong\u003eDavid Astro\u003c\/strong\u003e, we help observers choose the right Tele Vue components for visual observing and imaging support.\u003c\/p\u003e\n\u003c!-- more --\u003e\n\u003ch2\u003eTele Vue Eyepiece Series\u003c\/h2\u003e\n\u003cp\u003eTele Vue offers a complete eyepiece lineup for different observing needs, from wide-field deep-sky viewing to high-power planetary detail.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlössl:\u003c\/strong\u003e A classic, high-transmission design with sharp on-axis performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeLite:\u003c\/strong\u003e Long eye relief eyepieces with excellent comfort and contrast.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePanoptic:\u003c\/strong\u003e Wide-field eyepieces with strong correction and a generous field of view.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDelos:\u003c\/strong\u003e Premium high-contrast eyepieces with long eye relief and a wide apparent field.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNagler:\u003c\/strong\u003e Ultra-wide eyepieces designed for immersive deep-sky observing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEthos:\u003c\/strong\u003e Extremely wide apparent field eyepieces for maximum field immersion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZoom:\u003c\/strong\u003e Flexible eyepieces that allow convenient focal length adjustment at the eyepiece.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePowermates and Paracorr\u003c\/h2\u003e\n\u003cp\u003eTele Vue also makes optical accessories that are widely used in serious observing setups.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePowermate:\u003c\/strong\u003e A telecentric amplifier that increases magnification while preserving eye relief and optical behavior.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParacorr:\u003c\/strong\u003e A coma corrector designed to improve star shape in fast Newtonian telescopes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese accessories are often chosen by observers who want to improve image quality, maintain field correction, or adapt a telescope for higher magnification use.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose David Astro for Tele Vue\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExpert Guidance:\u003c\/strong\u003e Help choosing the right eyepiece or accessory for your telescope and observing style.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad Selection:\u003c\/strong\u003e Access to Tele Vue eyepieces, Powermates, and Paracorr models.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePractical Support:\u003c\/strong\u003e Advice based on real-world use across visual and imaging applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Shipping:\u003c\/strong\u003e Reliable delivery across Canada, the USA, and worldwide.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFrom entry-level observing to advanced visual astronomy, Tele Vue remains a reference point for optical performance.\u003c\/p\u003e","products":[{"product_id":"televue-sol-searcher","title":"TeleVue Sol-Searcher","description":"","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":46378450944285,"sku":"TV-SSF-1006","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Sol-Searcher.jpg?v=1693235465"},{"product_id":"televue-ethos-21mm-100-eyepiece","title":"TeleVue Oculaire Ethos 21mm 100° - 2\"","description":"\u003c!-- short description --\u003e\n\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocale 21mm\u003c\/li\u003e\n\u003cli\u003eChamp de vision apparent ultra-large de 100°\u003c\/li\u003e\n\u003cli\u003eCoulant de 2\" de diamètre\u003c\/li\u003e\n\u003cli\u003eDégagement oculaire de 15mm\u003c\/li\u003e\n\u003cli\u003eDiaphragme de champ de 36,2mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cp\u003e\u0026nbsp;\u003c\/p\u003e\n\u003c!-- tabs --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eSpécifications\u003c\/li\u003e\n\u003cli\u003eContenu de la boîte\u003c\/li\u003e\n\u003cli\u003eTéléchargements\u003c\/li\u003e\n\u003cli\u003eGarantie\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\u003c!-- Title image text --\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\u003c!-- Main Image --\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eOculaire TeleVue Ethos 21mm 100° - 2\"\u003c\/h2\u003e\n\u003cp\u003eL'oculaire Tele Vue Ethos 21mm représente l'évolution ultime de l'astronomie visuelle à large champ. Depuis ses débuts, la ligne Ethos a redéfini l'expérience de la \"sortie dans l'espace\", mais la focale de 21mm se distingue comme l'outil le plus puissant de la série pour l'exploration du ciel profond. En combinant un champ de vision apparent (AFOV) stupéfiant de 100° avec une focale qui équilibre le grossissement et la pupille de sortie, Tele Vue a créé un chef-d'œuvre optique qui fonctionne comme plusieurs oculaires en un seul.\u003c\/p\u003e\n\u003cp\u003eLorsque vous regardez à travers l'Ethos 21mm, les limites de l'équipement disparaissent. Vous ne regardez plus une image circulaire à travers un tube ; au lieu de cela, vous flottez dans l'abîme de l'espace. C'est l'oculaire pour l'observateur qui exige la meilleure correction absolue, le contraste le plus élevé et un champ de vision si vaste qu'il défie les limites de la vision périphérique humaine.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Title image text --\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\u003c!-- Main Image --\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRedéfinir le champ de vision apparent de 100°\u003c\/h3\u003e\n\u003cp\u003eLa caractéristique principale de l'Ethos 21mm est son champ de vision apparent de 100°. Pour situer, cela offre plus de 50% de surface de vision supplémentaire qu'un Nagler de 82° et près du triple de la surface d'un oculaire grand-angle standard de 68°.\u003c\/p\u003e\n\u003cp\u003eEn utilisation réelle, ce champ gigantesque a un double objectif. Premièrement, il permet des capacités de recherche et de vision incroyables. Dans de nombreux télescopes, l'Ethos 21mm offre un champ de vision réel presque aussi large qu'un Panoptic 35mm de faible puissance ou un Nagler 31mm, mais avec un grossissement significativement plus élevé. Cela signifie que vous pouvez localiser une galaxie faible et observer ses détails structurels immédiatement sans changer d'oculaire.\u003c\/p\u003e\n\u003cp\u003eDeuxièmement, le champ de 100° crée un impact émotionnel que des oculaires plus étroits ne peuvent pas reproduire. Sur de grandes nébuleuses comme la Nébuleuse d'Orion (M42) ou la Nébuleuse de l'Amérique du Nord (NGC 7000), l'Ethos 21mm capture l'ensemble du complexe tout en fournissant la puissance nécessaire pour assombrir le fond du ciel et révéler de délicats filaments de gaz.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Title image text --\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\u003c!-- Main Image --\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePerformance optique et correction inégalées\u003c\/h3\u003e\n\u003cp\u003eLes oculaires Tele Vue sont mondialement reconnus pour leur netteté sur l'axe, mais l'Ethos 21mm étend cette perfection sur tout le champ de 100°. Conçu par Paul Dellechiaie sous la direction d'Al Nagler, le train optique de l'Ethos est conçu pour éliminer les pièges courants des conceptions ultra-larges.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCorrection des bords :\u003c\/strong\u003e Même dans les télescopes rapides avec des rapports focaux de f\/5 ou f\/4, l'Ethos 21mm maintient des images stellaires précises du centre jusqu'au bord du diaphragme de champ.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eContraste et bafflage :\u003c\/strong\u003e Chaque bord de lentille interne est noirci, et les revêtements multicouches sont spécifiquement adaptés aux types de verre utilisés. Il en résulte des arrière-plans noirs d'encre et l'absence totale de fantômes ou de réflexions internes, même lors de l'observation près d'une Lune ou d'une planète brillante.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFidélité des couleurs :\u003c\/strong\u003e La ligne Ethos est connue pour un rendu des couleurs légèrement froid ou neutre. Cette transparence garantit que les teintes subtiles des étoiles et les verts ou bleus pâles des nébuleuses planétaires sont rendus avec une honnêteté absolue.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eContrôle de la distorsion :\u003c\/strong\u003e Grâce à une modélisation optique avancée, Tele Vue a minimisé la distorsion d'agrandissement angulaire. Cela garantit que lorsque vous orientez votre télescope à travers un champ stellaire, les étoiles ne s'étirent ni ne se compressent lorsqu'elles se déplacent vers le bord, préservant un sens naturel de la perspective.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Title image text --\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\u003c!-- Main Image --\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePolyvalence sur tous les types de télescopes\u003c\/h3\u003e\n\u003cp\u003eLe Tele Vue Ethos 21mm est souvent appelé le SCT-Ethos en raison de son effet transformateur sur les télescopes Schmidt-Cassegrain. Dans un SCT de 11 pouces f\/10, par exemple, il offre un grossissement suffisant pour faire ressortir les objets du ciel profond tout en offrant un champ de vision assez large pour encercler toute la Lune avec de la marge.\u003c\/p\u003e\n\u003cp\u003ePour les propriétaires de grands réflecteurs Dobson, cet oculaire est l'outil ultime. À f\/4.5 ou f\/5, la focale de 21mm produit une pupille de sortie saine de 4mm à 5mm. C'est largement considéré comme le point idéal pour l'observation du ciel profond, car il est suffisamment lumineux pour être utilisé avec des filtres nébulaires O-III ou UHC tout en fournissant un grossissement suffisant pour résoudre des amas globulaires comme M13 en des milliers d'étoiles individuelles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Title image text --\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\u003c!-- Main Image --\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eQualité de fabrication et ergonomie\u003c\/h3\u003e\n\u003cp\u003eIl s'agit d'un équipement substantiel, pesant environ 1,020 kg (2,25 lb). Il est construit avec la robustesse et la précision attendues d'un produit Tele Vue haut de gamme.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eConception du coulant :\u003c\/strong\u003e Le coulant de 2 pouces présente une entaille de sécurité conique. Contrairement aux rainures traditionnelles à coupe carrée qui peuvent s'accrocher aux bagues de compression en laiton, l'entaille de l'Ethos est chanfreinée pour permettre une insertion et un retrait en douceur tout en offrant une sécurité contre le glissement de l'oculaire hors du porte-oculaire.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDégagement oculaire :\u003c\/strong\u003e Avec un dégagement oculaire de 15mm, l'Ethos 21mm est confortable pour la plupart des observateurs. Bien qu'il puisse être un peu juste pour ceux qui doivent porter des lunettes épaisses pour corriger l'astigmatisme, l'oculaire est entièrement compatible avec le correcteur Tele Vue Dioptrx. Cela vous permet de fixer une lentille correctrice directement sur l'oculaire, vous offrant la vue la plus nette possible sans avoir besoin de lunettes.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePoignée tactile :\u003c\/strong\u003e Une poignée en caoutchouc épaisse et texturée assure une manipulation sûre par temps froid ou avec des gants, une caractéristique essentielle pour un oculaire de cette taille et de ce poids.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Title image text --\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\u003c!-- Main Image --\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePerspective comparative : pourquoi choisir l'Ethos 21mm ?\u003c\/h3\u003e\n\u003cp\u003eLors de la constitution d'une collection d'oculaires haut de gamme, l'Ethos 21mm est souvent en concurrence avec d'autres optiques légendaires de Tele Vue.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003evs. Nagler 31mm (Type 5) :\u003c\/strong\u003e Le Nagler 31mm offre un champ de vision réel plus large et une pupille de sortie plus grande. Cependant, l'Ethos 21mm offre un grossissement significativement plus élevé et un fond de ciel plus sombre. De nombreux observateurs trouvent l'Ethos 21mm plus utile pour l'observation générale car il rend les petits objets faibles plus faciles à voir sur le fond lumineux.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003evs. Panoptic 35mm ou 41mm :\u003c\/strong\u003e Ce sont d'excellents oculaires grand-angle de faible puissance. Cependant, ils n'ont pas le facteur d'immersion du champ de 100°. L'Ethos 21mm peut souvent montrer autant de ciel qu'un Panoptic 35mm mais à un niveau de grossissement beaucoup plus engageant.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003evs. Ethos 17mm :\u003c\/strong\u003e Le 17mm est plus léger et offre un grossissement plus élevé, mais le 21mm est le roi pour l'encadrement de grandes structures célestes. Les deux se complètent parfaitement dans un kit haut de gamme.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Title image text --\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\u003c!-- Main Image --\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eL'oculaire Tele Vue Ethos 21mm vaut-il l'investissement ?\u003c\/h3\u003e\n\u003cp\u003eL'Ethos 21mm est un oculaire pour la vie. Bien que le prix reflète sa position au sommet du marché, sa valeur se trouve dans les centaines d'heures de vues impressionnantes qu'il offre. En remplaçant essentiellement la nécessité d'un oculaire chercheur séparé et d'un oculaire de puissance moyenne, il simplifie votre kit tout en élevant votre expérience d'observation au plus haut niveau possible.\u003c\/p\u003e\n\u003cp\u003eChaque Tele Vue Ethos est testé individuellement dans leur usine de New York pour s'assurer qu'il respecte des normes optiques et esthétiques strictes. Lorsque vous achetez un Ethos, vous n'achetez pas seulement du verre et du métal ; vous achetez l'assurance de voir l'univers exactement tel qu'il est, sans compromis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Title image text --\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\u003c!-- Main Image --\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFoire aux questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDevrai-je rééquilibrer mon télescope ?\u003c\/strong\u003e Parce que l'Ethos 21mm pèse 1,020 kg (2,25 lb), les Dobson légers ou les petits réfracteurs peuvent nécessiter des contrepoids ou des ajustements de tension sur l'axe d'altitude. La plupart des télescopes de taille moyenne à grande gèrent le poids sans problème.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAi-je besoin d'un correcteur de coma ?\u003c\/strong\u003e Dans les réflecteurs newtoniens très rapides (f\/4.5 ou plus rapide), l'oculaire révélera la coma naturelle du miroir du télescope. Pour bénéficier pleinement de la netteté bord à bord de l'Ethos dans ces télescopes, nous recommandons fortement d'utiliser le Tele Vue Paracorr Type 2.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEst-il parfocal avec d'autres oculaires ?\u003c\/strong\u003e L'Ethos 21mm est parfocal avec le Nagler 31mm et l'Ethos 17mm. Cela signifie que vous pouvez passer d'un oculaire à l'autre avec peu ou pas de refocalisation nécessaire, ce qui est un avantage majeur lors d'une longue nuit d'observation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComment gère-t-il la pollution lumineuse ?\u003c\/strong\u003e La focale de 21mm est excellente pour les ciels modérément pollués par la lumière. Comparé à un oculaire de 31mm ou 40mm, le grossissement plus élevé de l'Ethos 21mm réduit la taille de la pupille de sortie, ce qui assombrit le fond du ciel et augmente le contraste des objets du ciel profond.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\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\u003eModèle n°\u003c\/td\u003e\n\u003ctd\u003eETH-21.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocale\u003c\/td\u003e\n\u003ctd\u003e21 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTaille du coulant\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChamp de vision apparent\u003c\/td\u003e\n\u003ctd\u003e100°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDégagement oculaire\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiamètre du diaphragme de champ\u003c\/td\u003e\n\u003ctd\u003e36,2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoids\u003c\/td\u003e\n\u003ctd\u003e36 oz (2,25 lb \/ 1020 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3,0\" x 4,3\" (76 x 109 mm)\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\u003cimg class=\"DAV-img-box\" alt=\"Ethos 21mm Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-21mm-Eyepiece-1.jpg?v=1774383600\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eOculaire Ethos 21mm\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\u003cimg class=\"DAV-img-box\" alt=\"Ethos 21mm Dust Cap (top)\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBouchon anti-poussière (haut)\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\u003cimg class=\"DAV-img-box\" alt=\"thos 21mm Dust Cap (bottom)\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBouchon anti-poussière (bas)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c!-- Add more items as needed --\u003e\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\/TeleVue-Ethos-21mm-Eyepiece-Manual.pdf?v=1774384900\" 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\"\u003eTélécharger le manuel\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c!-- Add more items as needed --\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eGarantie TeleVue de 5 ans\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51079426408733,"sku":"TV-ETH-21.0","price":1417.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-21mm-Eyepiece-1.jpg?v=1774383600"},{"product_id":"televue-ethos-17mm-100-eyepiece","title":"TeleVue Ethos 17mm 100° Eyepiece - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e17mm Focal Length\u003c\/li\u003e\n\u003cli\u003eUltra-Wide 100° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e15mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e29.6mm Field Stop\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n  \u003cli\u003eQ\u0026amp;A\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\u003eTele Vue Ethos 17mm 100° Eyepiece - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Ethos 17mm eyepiece is a crowning achievement in modern optical engineering, offering a focal length many veteran observers consider the absolute sweet spot for deep sky exploration. While the Ethos series changed the landscape of amateur astronomy with its 100° apparent field of view (AFOV), the 17mm model specifically bridges the gap between low power scanning and high power planetary detail. It provides a massive true field of view while maintaining the magnification necessary to resolve the intricate structures of distant galaxies and nebulae.\u003c\/p\u003e\n\u003cp\u003eStepping up to the Ethos 17mm is less about looking through a telescope and more about looking through a window. The framing is so vast that the metal housing of the eyepiece seems to vanish, leaving you suspended in a panoramic view of the cosmos. For the serious astronomer, this eyepiece represents a lifetime investment in visual excellence, combining the legendary \"spacewalk\" immersion with the uncompromising contrast and sharpness that Al Nagler and his team are known for.\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\u003eThe 100° Experience: Beyond Human Peripheral Vision\u003c\/h3\u003e\n\u003cp\u003eThe primary draw of the Ethos 17mm is its breathtaking 100° apparent field of view. To appreciate the scale, consider that an 82° Nagler, once the gold standard for wide fields, offers significantly less viewing area. The Ethos 17mm provides a field that essentially matches or exceeds the limit of what the human eye can perceive at once, requiring you to move your eye to \"look around\" the scene.\u003c\/p\u003e\n\u003cp\u003eIn practical application, this massive field translates to efficiency. Because the 17mm focal length provides higher magnification than its 21mm sibling, it darkens the sky background significantly, yet the 100° field ensures you are still seeing a swath of sky typically reserved for low power eyepieces. You can frame the entire Double Cluster in Perseus or the expansive tendrils of the Veil Nebula while enjoying the resolution and contrast that come with a 17mm focal length. It effectively does the work of two eyepieces, functioning as both a wide field finder and a high contrast medium power powerhouse.\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 Optics and Edge-to-Edge Correction\u003c\/h3\u003e\n\u003cp\u003eTele Vue has built its reputation on the ability to handle \"fast\" telescopes. The Ethos 17mm is engineered to perform flawlessly even in f\/4 or f\/4.5 focal ratios, where lesser eyepieces often suffer from astigmatism or field curvature at the edges. This eyepiece maintains pinpoint star images across the entire 29.6mm field stop.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Multi-Coatings:\u003c\/strong\u003e Every air-to-glass surface is treated with specialized multi-coatings to ensure maximum light transmission. This results in an exceptionally bright image, allowing you to catch the faintest hints of nebulosity in objects like the Horsehead Nebula.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Contrast:\u003c\/strong\u003e The internal mechanical design utilizes extensive baffling and blackened lens edges to eliminate stray light. When a bright star is just outside the field of view, the background remains inky black, free from the \"ghosting\" or glare that plagues many ultra-wide designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical Geometry:\u003c\/strong\u003e The Ethos design specifically addresses angular magnification distortion. This means objects retain their correct proportions as they drift from the center to the edge, a critical feature for those using non-tracking Dobsonian telescopes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeutral Color Balance:\u003c\/strong\u003e Tele Vue optics are celebrated for their \"pure\" white light transmission. There is no yellow or blue tinting, ensuring that the natural colors of star clusters and the subtle hues of planetary discs are preserved exactly as they are.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOptimizing the Exit Pupil for Deep Sky\u003c\/h3\u003e\n\u003cp\u003eFor many observers, the 17mm focal length is the \"Goldilocks\" zone. In a standard f\/10 Schmidt-Cassegrain, it yields a 1.7mm exit pupil, which is ideal for resolving globular clusters and planetary nebulae. In a fast f\/4.5 Dobsonian, it produces a 3.8mm exit pupil, which is the perfect balance for deep sky work, providing enough light for the eye to perceive color and detail without the sky background becoming washed out by light pollution.\u003c\/p\u003e\n\u003cp\u003eThis versatility makes the Ethos 17mm the most used eyepiece in many collections. Whether you are hunting for small, faint galaxies or taking in the grandeur of the Pleiades, the 17mm provides the scale and brightness required for a truly transformative observing session.\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\u003eErgonomics and Mechanical Excellence\u003c\/h3\u003e\n\u003cp\u003eDespite its complex 100° optical design, the Ethos 17mm remains more manageable than the massive 21mm version. Weighing in at approximately 1.5 lbs (703 g), it is easier to balance on a wider variety of telescope mounts while still feeling like a robust, professional-grade instrument.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety and Stability:\u003c\/strong\u003e The 2-inch barrel includes the signature Tele Vue tapered safety undercut. This design ensures that even if your focuser lock loosens slightly, the eyepiece remains securely held, preventing accidental drops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViewing Comfort:\u003c\/strong\u003e The 15mm of eye relief is generous for an ultra-wide eyepiece. For those who observe with glasses, the Ethos 17mm is fully compatible with the Tele Vue Dioptrx system, which corrects for eyesight astigmatism so you can observe without the hindrance of spectacles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-Weather Grip:\u003c\/strong\u003e The textured rubber housing provides a secure grip in humid conditions or when wearing gloves during winter observing sessions. The fold-down rubber eyeguard helps block lateral light pollution and positions the eye at the perfect distance for a comfortable view.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eComparative Perspective: The 17mm Ethos in the Kit\u003c\/h3\u003e\n\u003cp\u003eHow does the 17mm Ethos compare to other legendary glass in the Tele Vue stable?\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Ethos 21mm:\u003c\/strong\u003e The 21mm is the \"finder\" of the series with a wider true field. However, the 17mm is often preferred for smaller deep sky objects because the higher magnification makes them easier to see. The 17mm is also significantly lighter and easier to balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler 17mm Type 4:\u003c\/strong\u003e The Nagler 17mm is a classic with a very comfortable 82° field. However, the Ethos 17mm provides a nearly 50% larger viewing area and improved edge correction, making it the definitive upgrade for those seeking the ultimate immersion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Delos 17.3mm:\u003c\/strong\u003e If you require 20mm of eye relief for thick glasses, the Delos is a fantastic choice. But if you want the \"floating in space\" feeling that only a 100° field can provide, the Ethos is unrivaled.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIs the Tele Vue Ethos 17mm Right for You?\u003c\/h3\u003e\n\u003cp\u003eThe Ethos 17mm is designed for the observer who refuses to compromise. It is for the astronomer who wants to see the spiral arms of M51 framed by the deep black of space, without the distraction of a narrow field stop. It is a \"forever\" eyepiece, designed to be passed down through generations. When you consider that it can replace several lower-quality eyepieces in your kit, the value becomes clear. You are paying for the highest level of craftsmanship available in the world of consumer optics today.\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\"\u003eIs the Ethos 17mm compatible with 1.25\" focusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, due to the large field stop and optical design, this eyepiece requires a 2-inch focuser or diagonal. Attempting to adapt it to 1.25\" would result in severe vignetting.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does it perform with a Barlow or PowerMate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eExtremely well. Pairing the 17mm Ethos with a 2x PowerMate creates a high-power 8.5mm 100° eyepiece, which is exceptional for high-magnification lunar and planetary viewing while maintaining the immersive wide field.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a Coma Corrector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf you are using a Newtonian reflector faster than f\/5, a Tele Vue Paracorr Type 2 is highly recommended. The Ethos 17mm is sharp enough to reveal the inherent coma of your telescope mirror, and the Paracorr will ensure the stars stay sharp to the very edge of that 100° field.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this eyepiece parfocal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Ethos 17mm is parfocal with the 21mm Ethos, 13mm Ethos, and 31mm Nagler. This allows you to swap between these focal lengths during an observing session with minimal refocusing required.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eETH-17.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e17 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\u003e100°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e29.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e24.8 oz (1.55 lb \/ 703 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e4.4\" (112 mm)\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\u003cimg class=\"DAV-img-box\" alt=\"Tele Vue Ethos 17mm Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-17mm-Eyepiece-1.jpg?v=1774383600\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEthos 17mm 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 class=\"DAV-img-box\" alt=\"Tele Vue 2-inch Dust Cap (top)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 class=\"DAV-img-box\" alt=\"Tele Vue 2-inch Dust Cap (bottom)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/TeleVue-Ethos-Eyepiece-Instructions.pdf?v=1774384900\" 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\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" target=\"_blank\" rel=\"noopener\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51080422392093,"sku":"TV-ETH-17.0","price":1261.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-17mm-Eyepiece-1.jpg?v=1774404190"},{"product_id":"televue-ethos-13mm-100-eyepiece","title":"TeleVue Ethos 13mm 100° Eyepiece - 1.25\"\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e13mm Focal Length\u003c\/li\u003e\n\u003cli\u003e100° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" \/ 1.25\" Hybrid Barrel\u003c\/li\u003e\n\u003cli\u003e15mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e22.3mm 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\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\u003eTeleVue Ethos 13mm 100° Eyepiece - 2\" \/ 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Ethos 13mm is the original pioneer that launched the 100° revolution. Designed to provide a \"portal\" into the deep universe, this eyepiece offers a focal length that many observers consider the ultimate sweet spot for high-contrast, deep-sky observing. It delivers the magnification necessary to pull detail out of galaxies and nebulae while maintaining a field of view so wide it encompasses entire clusters.\u003c\/p\u003e\n\u003cp\u003ePeering through the 13mm Ethos is often described as standing on the edge of a precipice looking into space. With its immersive 100° apparent field of view, the black edges of the eyepiece barrel disappear from your peripheral vision, leaving only the target suspended in a bottomless, velvet-black sky.\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\u003eThe Original 100° Masterpiece\u003c\/h3\u003e\n\u003cp\u003eThe 13mm Ethos was the first eyepiece to successfully implement a well-corrected 100° field, and it remains a benchmark for the industry. This focal length provides a powerful magnification boost over lower-power finders, yet its field of view is wide enough to compete with most mid-range wide-angle eyepieces.\u003c\/p\u003e\n\u003cp\u003eFor most telescopes, the 13mm serves as the \"primary\" deep-sky eyepiece. It provides the ideal exit pupil for detecting subtle low-contrast features in spiral arms of galaxies or the delicate filaments of supernova remnants like the Veil Nebula. The 100° field isn't just about size; it's about context—allowing you to see a galaxy in relation to its surrounding star fields.\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\u003eSuperior Optical Engineering\u003c\/h3\u003e\n\u003cp\u003eLike all eyepieces in the Ethos line, the 13mm was designed by Paul Dellechiaie to meet the exacting standards of Al Nagler. It is engineered to be as sharp at the very edge of the field as it is in the center.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge Sharpness:\u003c\/strong\u003e Stars remain tight, pinpoint dots across the entire 100° expanse, even in fast f\/4 Newtonian reflectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Contrast Coatings:\u003c\/strong\u003e Advanced multi-coatings and blackened lens edges ensure that stray light is eliminated, providing the inky-black backgrounds Tele Vue is famous for.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHybrid Barrel Versatility:\u003c\/strong\u003e The 13mm Ethos features a unique hybrid barrel design, allowing it to be used in both 2\" and 1.25\" focusers or diagonals, making it compatible with almost any telescope in your collection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat Field:\u003c\/strong\u003e The optical design minimizes field curvature, ensuring that you don't have to refocus as you move your eye from the center to the edge of the view.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eVersatility and Application\u003c\/h3\u003e\n\u003cp\u003eThe 13mm Ethos is a versatile performer. In long focal length telescopes like SCTs or large refractors, it provides high-power views of planetary nebulae and lunar details. In fast Dobsonians, it is the perfect \"galaxy hunter,\" offering a dark sky background and enough power to resolve individual stars in globular clusters.\u003c\/p\u003e\n\u003cp\u003eBecause it creates such a massive true field for its magnification, it often allows you to keep an object in view for much longer in non-tracking telescopes compared to 50° or 70° eyepieces, making it a favorite for manual Dobsonian users.\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\u003eErgonomics and Dioptrx Compatibility\u003c\/h3\u003e\n\u003cp\u003eDespite its complex optical train, the 13mm Ethos is designed for comfort. Weighing just over 1 lb, it is significantly lighter than the 21mm version, making it easier to manage on smaller mounts.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEye Relief:\u003c\/strong\u003e The 15mm eye relief is well-balanced. While it provides an immersive view for most, it also accepts the Tele Vue Dioptrx system to correct for astigmatism, ensuring every user can see pinpoint stars without needing to wear glasses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Features:\u003c\/strong\u003e The 1.25\" and 2\" barrel sections both feature safety undercuts to prevent the eyepiece from accidentally sliding out of the focuser.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eComparative Perspective: Why the 13mm?\u003c\/h3\u003e\n\u003cp\u003eIn the Tele Vue hierarchy, the 13mm occupies a special place:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler 12mm or 13mm:\u003c\/strong\u003e While the Nagler series offers a legendary 82° field, the 13mm Ethos provides nearly 50% more viewing area, significantly increasing the \"immersion\" factor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Ethos 10mm or 17mm:\u003c\/strong\u003e The 13mm is often chosen as the \"anchor\" of an Ethos kit, sitting perfectly between the high-power 10mm and the wider 17mm or 21mm options.\u003c\/li\u003e\n\u003c\/ul\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\"\u003eIs the 13mm Ethos better for galaxies or planets?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile world-class for both, it is the ultimate \"galaxy hunter\" for several reasons:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Contrast:\u003c\/strong\u003e The 13mm focal length darkens the sky background, making faint spiral arms easier to see.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnification:\u003c\/strong\u003e It provides the power needed to resolve globular clusters into individual stars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFraming:\u003c\/strong\u003e The 100° field allows you to view large nebulae in their entirety without losing detail.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003e13mm Ethos vs. 12mm Delos: Which should I choose?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe choice depends on your preference for eye relief versus immersion:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12mm Delos:\u003c\/strong\u003e Best for eyeglass wearers due to its long 20mm eye relief and adjustable eye-cup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13mm Ethos:\u003c\/strong\u003e Best for the \"spacewalk\" experience. It offers 15mm of eye relief and a significantly wider field of view.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this in a 1.25\" diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 13mm Ethos is highly versatile thanks to its hybrid design:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Barrel:\u003c\/strong\u003e It features both 1.25\" and 2\" barrels for use in almost any telescope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Warning:\u003c\/strong\u003e It weighs 1.3 lbs (590 g); ensure your 1.25\" focuser or diagonal can securely support the load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the eye relief of the 13mm Ethos compare to the 21mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBoth the 13mm and 21mm Ethos models provide 15mm of eye relief. Here is how that impacts your viewing:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComfort:\u003c\/strong\u003e 15mm is generally considered very comfortable for most observers not wearing glasses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlasses:\u003c\/strong\u003e If you must wear glasses for astigmatism, you may not see the full 100° field at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolution:\u003c\/strong\u003e Both are fully compatible with \u003cstrong\u003eTele Vue Dioptrx\u003c\/strong\u003e to correct vision without needing glasses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a Paracorr with the 13mm Ethos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhether you need a coma corrector depends on your telescope's speed:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/4.5 or Faster:\u003c\/strong\u003e The 100° field will reveal the natural coma of your mirror. A \u003cstrong\u003eParacorr Type 2\u003c\/strong\u003e is highly recommended for pinpoint stars to the edge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/5 or Slower:\u003c\/strong\u003e Most observers find the correction excellent and do not require a Paracorr.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this focal length handle light pollution?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 13mm focal length is an ideal \"Urban Workhorse\" for suburban skies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDarker Backgrounds:\u003c\/strong\u003e It reduces the exit pupil size compared to 21mm or 31mm eyepieces, effectively \"tucking in\" sky glow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Contrast:\u003c\/strong\u003e This makes deep-sky objects stand out more clearly against the background city light.\u003c\/li\u003e\n\u003c\/ul\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eETH-13.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e13 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\" \/ 1.25\" Hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Compatibility\u003c\/td\u003e\n\u003ctd\u003eThreaded for 1.25\" filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e100°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e22.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e20.8 oz (1.3 lb \/ 590 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.5\" x 5.8\" (63.5 x 147 mm)\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\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-13mm-Eyepiece-1.jpg?v=1775087658\" alt=\"Ethos 13mm Eyepiece\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEthos 13mm 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=\"Dust Cap (top)\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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-1_25inch-Dustcap.jpg?v=1774403145\" alt=\"Dust Cap (bottom)\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/TeleVue-Ethos-6-8-10-13mm-Eyepieces-Manual.pdf?v=1775092656\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" 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\"\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\u003ca rel=\"noopener\" href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the 13mm Ethos better for galaxies or planets?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"While world-class for both, the 13mm Ethos is an ultimate 'galaxy hunter.' The 13mm focal length darkens the sky background to increase contrast on faint spiral arms, provides enough magnification to resolve globular clusters into individual stars, and uses its 100° field to frame large nebulae in their entirety.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"13mm Ethos vs. 12mm Delos: Which should I choose?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The choice depends on your preference for eye relief versus immersion. The 12mm Delos is better for eyeglass wearers due to its long 20mm eye relief, while the 13mm Ethos is best for the 'spacewalk' experience, offering 15mm of eye relief and a significantly wider 100° field of view.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use the 13mm Ethos in a 1.25\\\" diagonal?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the 13mm Ethos features a hybrid dual-barrel design, allowing it to fit both 1.25\\\" and 2\\\" focusers or diagonals. Note that it weighs 1.3 lbs (590 g), so ensure your 1.25\\\" equipment can securely support the weight.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does the eye relief of the 13mm Ethos compare to the 21mm?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Both the 13mm and 21mm Ethos models provide 15mm of eye relief. This is comfortable for most observers not wearing glasses. For those with astigmatism who must wear a prescription, both models are fully compatible with Tele Vue Dioptrx correctors.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need a Paracorr with the 13mm Ethos?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your Newtonian telescope is f\/4.5 or faster, the wide 100° field will reveal the natural coma of your mirror. In these fast scopes, a Tele Vue Paracorr Type 2 is highly recommended for pinpoint stars to the edge. For scopes f\/5 or slower, a Paracorr is usually not required.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does the 13mm Ethos handle light pollution?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 13mm focal length is an ideal 'Urban Workhorse.' By reducing the exit pupil size compared to lower-power eyepieces, it darkens the sky glow and increases the perceived contrast of deep-sky objects against background city light.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is it difficult to see the full 100° field of the 13mm Ethos?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 13mm Ethos is designed for peripheral immersion. Instead of staring at the edges, the field stop disappears from view, creating a 'spacewalk' sensation where you feel suspended in space rather than looking through a telescope.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51110033981725,"sku":"TV-ETH-13.0","price":1043.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-13mm-Eyepiece-2.jpg?v=1775092984"},{"product_id":"televue-ethos-10mm-100-eyepiece","title":"TeleVue Ethos 10mm 100° Eyepiece - 1.25\"\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e10mm Focal Length\u003c\/li\u003e\n\u003cli\u003e100° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" \/ 1.25\" Hybrid Barrel\u003c\/li\u003e\n\u003cli\u003e15mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e17.7mm 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\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\u003eTeleVue Ethos 10mm 100° Eyepiece - 2\" \/ 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Ethos 10mm sits at the strategic \"power center\" of the Ethos line. While the 21mm and 13mm models are celebrated for their wide field framing, the 10mm focal length is where the 100° Apparent Field of View (AFOV) truly begins to pull back the curtain on the deep universe. It offers a higher magnification level that darkens sky backgrounds significantly, making it an essential tool for resolving the core details of distant galaxies and globular clusters.\u003c\/p\u003e\n\u003cp\u003eThe 100° apparent field removes the visible field stop in most observing conditions, creating the classic ‘spacewalk experience’ where the eyepiece frame disappears. At this focal length, the magnification is high enough to reveal intricate structural details in planetary nebulae, yet the field of view remains wide enough to keep those objects centered in non tracking telescopes for remarkably long periods. Best of all, it is parfocal with the Ethos 13mm, allowing for seamless transitions during your observing session.\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\u003eHigh Magnification Without the \"Tunnel Vision\"\u003c\/h3\u003e\n\u003cp\u003eIn traditional high power eyepieces, increasing magnification usually means a claustrophobic decrease in the field of view. The Ethos 10mm shatters this limitation. By providing a 100° field, it allows you to observe at high power while still seeing the object’s celestial neighborhood.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep Sky Resolution:\u003c\/strong\u003e Perfect for resolving M13 or M92 into thousands of pinpoint stars while maintaining a wide, dark background.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar Exploration:\u003c\/strong\u003e Provides an incredibly immersive view of the lunar surface, allowing you to fly over craters and rilles with zero sense of equipment interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExit Pupil Efficiency:\u003c\/strong\u003e In most f\/5 to f\/10 telescopes, the 10mm focal length produces an exit pupil that balances brightness and contrast perfectly for the human eye.\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\u003eThe Universal Hybrid Design\u003c\/h3\u003e\n\u003cp\u003eThe 10mm Ethos is designed for maximum compatibility across your entire telescope collection. Its hybrid barrel system allows it to slide into 1.25\" focusers for portable refractors or 2\" diagonals for larger instruments.\u003c\/p\u003e\n\u003cp\u003eEvery internal optical surface is multi coated and every lens edge is blackened. This meticulous attention to detail results in world class contrast. When observing near a bright object like the Moon or Jupiter, the 10mm Ethos suppresses ghosting and internal reflections, ensuring the views remain \"inky black\" and pure.\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\u003eErgonomics and Dioptrx Compatibility\u003c\/h3\u003e\n\u003cp\u003eWeighing in at approximately 1.1 lbs (500g), the 10mm Ethos is a manageable addition to any imaging train. Like all eyepieces in the Ethos series, it features a consistent 15mm of eye relief, providing a comfortable and predictable viewing experience for all observers.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDioptrx Ready:\u003c\/strong\u003e For those with astigmatism, the 10mm Ethos is fully compatible with the Tele Vue Dioptrx corrector, allowing for sharp views without the need for eyeglasses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First:\u003c\/strong\u003e Features the signature Tele Vue safety undercut, preventing the eyepiece from falling out if the focuser screws loosen.\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\"\u003eIs the 10mm Ethos better than the 13mm for deep sky?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 10mm offers specific advantages for high contrast targets and smaller objects:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDarker Sky:\u003c\/strong\u003e The 10mm provides a smaller exit pupil, darkening the background sky glow more than the 13mm, which makes faint nebulae and galaxies \"pop.\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher Resolution:\u003c\/strong\u003e It is generally superior for resolving the cores of globular clusters (like M13) and detecting planetary details.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParfocal Design:\u003c\/strong\u003e The 10mm is parfocal with the 13mm Ethos, allowing you to swap between these two \"workhorse\" focal lengths without refocusing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much eye relief does the 10mm Ethos have?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 10mm Ethos features 15mm of eye relief, which is the standard across the entire Ethos focal length range:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistency:\u003c\/strong\u003e Because all Ethos eyepieces (from 3.7mm to 21mm) share this 15mm eye relief, your head position remains identical when swapping focal lengths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyeglass Users:\u003c\/strong\u003e While 15mm is comfortable for most, those with severe astigmatism can use the Tele Vue Dioptrx system instead of glasses to maintain the full 100° view.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the 10mm Ethos considered a perfect match for SCTs?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor owners of Schmidt Cassegrain Telescopes (8\", 9.25\", 11\", and 14\"), the 10mm Ethos is often the most used eyepiece in the kit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe \"Sweet Spot\" Power:\u003c\/strong\u003e In an 8\" f\/10 SCT, it provides 200x magnification with a 1mm exit pupil, which is widely considered the optimal balance of power and brightness for most atmospheric conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFraming:\u003c\/strong\u003e The 100° field provides enough context to frame most lunar features and mid sized deep sky objects that would feel \"cramped\" in narrower high power eyepieces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 10mm Ethos good for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 10mm Ethos is an exceptional planetary tool, provided your telescope has sufficient focal length:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Focal Length Scopes:\u003c\/strong\u003e It is a great match for scopes like an 8\" SCT or large Dobsonians with 1500mm+ of focal length where high magnification is easily achieved.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Tracking:\u003c\/strong\u003e The massive 100° field allows a planet to drift across the view for a much longer time before you need to nudge the scope, which is a major advantage for manual Dobsonian users.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContrast:\u003c\/strong\u003e With every lens edge blackened and advanced multi coatings, it provides the \"cool\" color rendition and high contrast necessary for lunar and planetary details.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 10mm Ethos in a 1.25\" diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 10mm Ethos features a hybrid 2\" \/ 1.25\" barrel design:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Consideration:\u003c\/strong\u003e It weighs 1.1 lbs (500g). Ensure your 1.25\" focuser or diagonal has a strong locking mechanism to support the weight.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a Paracorr with the 10mm Ethos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis depends entirely on your telescope's focal ratio:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/4.5 or Faster:\u003c\/strong\u003e In fast Newtonians, the 100° field is wide enough to show the natural coma of your mirror. We highly recommend the Tele Vue Paracorr Type 2 for pinpoint stars to the very edge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSCTs and Refractors:\u003c\/strong\u003e Most Schmidt Cassegrain and refractor users find the field correction excellent without any additional correction.\u003c\/li\u003e\n\u003c\/ul\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\u003eETH-10.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\" \/ 1.25\" Hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Compatibility\u003c\/td\u003e\n\u003ctd\u003eThreaded for 1.25\" filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e100°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e17.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e17.7 oz (1.1 lb \/ 500 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.5\" x 5.2\" (63.5 x 132 mm)\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\/TeleVue-Ethos-10mm-Eyepiece.jpg\" alt=\"Ethos 10mm Eyepiece\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEthos 10mm 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-Ethos-10mm-Eyepiece-1.jpg?v=1775093396\" alt=\"Dust Cap (top)\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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-1_25inch-Dustcap.jpg?v=1774403145\" alt=\"Dust Cap (bottom)\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\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\/TeleVue-Ethos-6-8-10-13mm-Eyepieces-Manual.pdf?v=1775092656\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" 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\"\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\u003ca rel=\"noopener\" href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n\"@context\": \"https:\/\/schema.org\",\n\"@type\": \"FAQPage\",\n\"mainEntity\": [\n{\n\"@type\": \"Question\",\n\"name\": \"Is the 10mm Ethos better than the 13mm for deep sky?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"The 10mm Ethos provides a smaller exit pupil which darkens the sky background more than the 13mm, increasing contrast on faint objects. It is also parfocal with the 13mm, making them a perfect pair for deep sky exploration.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"What is the eye relief of the 10mm Ethos?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"The 10mm Ethos features 15mm of eye relief. This is consistent across the entire Ethos line (from 3.7mm to 21mm), ensuring a predictable head position when swapping focal lengths.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Why is the 10mm Ethos recommended for SCT telescopes?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"In f\/10 Schmidt Cassegrain telescopes, the 10mm Ethos provides an ideal 1mm exit pupil and 200x magnification (on an 8 inch model), balancing power and brightness perfectly for lunar and deep sky targets.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can I use the 10mm Ethos for planetary viewing?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes, it is a great match for long focal length scopes like an 8 inch SCT or large Dobsonians (1500mm+). The 100 degree field allows planets to remain in view much longer in non tracking mounts.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can I use the 10mm Ethos in a 1.25-inch focuser?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes, the 10mm Ethos has a hybrid barrel design that fits both 1.25 inch and 2 inch focusers and diagonals without the need for an adapter.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Do I need a coma corrector for the 10mm Ethos?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"For fast Newtonian telescopes (f\/4.5 or faster), a Tele Vue Paracorr Type 2 is recommended to achieve pinpoint stars at the edges of the 100 degree field.\"\n}\n}\n]\n}\n\u003c\/script\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51110153519389,"sku":"TV-ETH-10.0","price":1043.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-10mm-Eyepiece-1.jpg?v=1775093396"},{"product_id":"televue-ethos-8mm-100-eyepiece","title":"TeleVue Ethos 8mm 100° Eyepiece - 1.25\"\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e8mm Focal Length\u003c\/li\u003e\n\u003cli\u003e100° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" \/ 1.25\" Hybrid Barrel\u003c\/li\u003e\n\u003cli\u003e15mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e13.9mm 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\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\u003eTeleVue Ethos 8mm 100° Eyepiece - 2\" \/ 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Ethos 8mm is a high power powerhouse designed to deliver the ultimate high contrast observing experience. In the Ethos lineup, the 8mm focal length is frequently cited as the sweet spot for deep sky objects that require significant magnification to reveal internal structure. It provides a tight exit pupil that effectively suppresses sky glow, making it a favorite for observers in light polluted areas looking to maximize their telescope's potential.\u003c\/p\u003e\n\u003cp\u003eObserving through the 8mm Ethos offers a breathtaking 100° field that effectively removes the boundaries between you and the cosmos. Whether you are hunting for small planetary nebulae or diving into the intricate lanes of distant galaxies, the 8mm offers the resolution and contrast necessary for demanding visual work. Like its siblings, it is parfocal with the 13mm, 10mm, and 6mm Ethos models for effortless focal length changes.\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\u003eUnrivaled Contrast and Resolution\u003c\/h3\u003e\n\u003cp\u003eThe 8mm Ethos is engineered to provide sharp views across the entire 100° expanse. By pushing magnification while maintaining a massive field of view, it allows you to see the big picture without sacrificing the fine details found at the center of the field.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanetary Detail:\u003c\/strong\u003e Sharp enough for high resolution views of Jupiter’s GRS or Saturn’s Cassini Division in telescopes with moderate to long focal lengths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobular Cluster Specialist:\u003c\/strong\u003e Ideal for resolving the tightest stellar cores in objects like M15 or M2, where background darkness is key to seeing individual stars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersive Lunar Views:\u003c\/strong\u003e The 8mm provides a high altitude flyover feel that covers a significant portion of the lunar limb at high power.\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\u003eVersatile Hybrid Barrel Design\u003c\/h3\u003e\n\u003cp\u003eThe 8mm Ethos includes the Tele Vue hybrid barrel system, making it compatible with a wide range of equipment. It slides natively into 1.25\" focusers for small refractors or 2\" diagonals for larger reflectors and SCTs.\u003c\/p\u003e\n\u003cp\u003eTo ensure the purest views, every lens edge is blackened and the internal baffles are designed to eliminate stray light. This ensures that even when a bright moon is just outside the field, your view remains free of glare and internal reflections.\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\u003eBuilt for Long-Term Comfort\u003c\/h3\u003e\n\u003cp\u003eAt approximately 0.95 lbs (430g), the 8mm Ethos is slightly lighter and more compact than the 13mm and 10mm versions, making it easier to balance on smaller mounts. It maintains the series standard 15mm eye relief for a comfortable viewing experience.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e Fully compatible with Tele Vue Dioptrx to correct for eyesight astigmatism, allowing for sharp views without wearing glasses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Undercut:\u003c\/strong\u003e The barrel is machined with a safety groove to ensure the eyepiece stays securely in your focuser even if the set screw is slightly loose.\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\"\u003eIs the 8mm Ethos better than the 10mm for galaxies?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe choice usually depends on your specific telescope and sky conditions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Contrast:\u003c\/strong\u003e The 8mm focal length produces a smaller exit pupil than the 10mm, which darkens the sky background further. This often makes small, faint galaxies easier to detect.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetail:\u003c\/strong\u003e For small planetary nebulae or resolving tight globular clusters, the 8mm provides that extra bit of magnification needed to see structural details.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much eye relief does the 8mm Ethos have?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 8mm Ethos has 15mm of eye relief, which is the same as all other eyepieces in the Ethos series:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent Head Position:\u003c\/strong\u003e This allows you to switch between focal lengths in the Ethos line without having to adjust how close your eye is to the lens.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyeglass Use:\u003c\/strong\u003e If you must wear glasses, you may find it difficult to see the full 100° field at once. Most users prefer using the Tele Vue Dioptrx attachment for the best results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 8mm Ethos parfocal with other eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 8mm parfocal with the 6mm Ethos model. This means you can swap these eyepieces in and out of your diagonal with little to no refocusing required.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 8mm Ethos perform in an 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a standard 8\" f\/10 Schmidt Cassegrain, the 8mm Ethos is an excellent high power tool:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnification:\u003c\/strong\u003e It provides 250x, which is often the maximum usable magnification on nights with good atmospheric seeing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExit Pupil:\u003c\/strong\u003e It yields a 0.8mm exit pupil, which is ideal for resolving the finest planetary and lunar details.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a Paracorr with the 8mm Ethos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe requirement for a coma corrector is based on your telescope design:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Newtonians:\u003c\/strong\u003e For scopes f\/4.5 or faster, a Paracorr Type 2 is recommended to keep stars pinpoint sharp to the edge of the 100° field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther Scopes:\u003c\/strong\u003e Refractors and SCTs typically do not require a coma corrector for the 8mm Ethos.\u003c\/li\u003e\n\u003c\/ul\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\u003eETH-08.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\" \/ 1.25\" Hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Compatibility\u003c\/td\u003e\n\u003ctd\u003eThreaded for 1.25\" filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e100°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e13.9 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e15.2 oz (0.95 lb \/ 430 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.1\" x 5.8\" (53.3 x 147 mm)\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\/TeleVue-Ethos-8mm-Eyepiece-1.jpg?v=1775095288\" alt=\"Ethos 8mm Eyepiece\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEthos 8mm 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?v=1774403118\" alt=\"Dust Cap (top)\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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-1_25inch-Dustcap.jpg?v=1774403145\" alt=\"Dust Cap (bottom)\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\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\/TeleVue-Ethos-6-8-10-13mm-Eyepieces-Manual.pdf?v=1775092656\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" 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\"\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\u003ca rel=\"noopener\" href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n\"@context\": \"https:\/\/schema.org\",\n\"@type\": \"FAQPage\",\n\"mainEntity\": [\n{\n\"@type\": \"Question\",\n\"name\": \"Is the 8mm Ethos better than the 10mm for galaxies?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"The 8mm provides a darker sky background and higher magnification, which is often better for resolving fine details in small galaxies and tight globular clusters.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"What is the eye relief of the 8mm Ethos?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"The 8mm Ethos features 15mm of eye relief, maintaining consistency with the entire Ethos focal length range for a predictable viewing experience.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Is the 8mm Ethos parfocal with other Tele Vue eyepieces?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes, it is parfocal with the 6mm Ethos model, allowing for focal length changes with minimal refocusing.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"How does the 8mm Ethos perform in an 8 inch SCT?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"In an 8 inch f\/10 SCT, it provides 250x magnification and a 0.8mm exit pupil, making it ideal for high power lunar and planetary observation.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can I use the 8mm Ethos in a 1.25 inch diagonal?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes, its hybrid barrel design allows it to fit natively into both 1.25 inch and 2 inch diagonals and focusers.\"\n}\n}\n]\n}\n\u003c\/script\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51110184485149,"sku":"TV-ETH-08.0","price":980.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-8mm-Eyepiece-1.jpg?v=1775095288"},{"product_id":"televue-ethos-6mm-100-eyepiece","title":"TeleVue Ethos 6mm 100° Eyepiece - 1.25\"\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e6mm Focal Length\u003c\/li\u003e\n\u003cli\u003e100° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" \/ 1.25\" Hybrid Barrel\u003c\/li\u003e\n\u003cli\u003e15mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e10.4mm 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\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\u003eTeleVue Ethos 6mm 100° Eyepiece - 2\" \/ 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Ethos 6mm is the definitive high magnification tool for observers who refuse to compromise on field of view. While typical high power eyepieces create a narrow tunnel effect, the 6mm Ethos provides a massive 100° window that is wide enough to keep the entire lunar disk in view even at significant magnifications. This focal length is specifically engineered to pull out the finest details in planetary nebulae and lunar rilles while maintaining the surrounding celestial context.\u003c\/p\u003e\n\u003cp\u003eUsing the 6mm Ethos creates a unique observing experience where the equipment seems to vanish. The 10.4mm field stop allows for high power resolution that can split tight double stars or reveal the inner filaments of the Crab Nebula. It is parfocal with the 13mm, 10mm, and 8mm Ethos models, ensuring that your transition to high power remains efficient and focused.\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\u003ePrecision Resolution for the Deepest Targets\u003c\/h3\u003e\n\u003cp\u003eHigh magnification is only useful if the contrast is high enough to distinguish subtle features. The 6mm Ethos uses advanced glass types and coatings to ensure that every photon of light from a distant planet or galaxy reaches your eye with maximum clarity.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanetary Performance:\u003c\/strong\u003e Provides enough power to resolve the Encke Division in Saturn’s rings during nights of steady atmospheric seeing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalaxy Hunter:\u003c\/strong\u003e The 0.6mm exit pupil in an f\/10 system darkens the sky background to the limit, allowing the spiral structure of face on galaxies to become visible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Drift Time:\u003c\/strong\u003e The 100° field means a planet stays in the sweet spot of your mirror significantly longer than it would in a standard 50° or 70° eyepiece.\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\u003eVersatile Hybrid Barrel Design\u003c\/h3\u003e\n\u003cp\u003eThe 6mm Ethos includes the Tele Vue hybrid barrel system, making it compatible with a wide range of equipment. It slides natively into 1.25\" focusers for small refractors or 2\" diagonals for larger reflectors and SCTs.\u003c\/p\u003e\n\u003cp\u003eTo ensure the purest views, every lens edge is blackened and the internal baffles are designed to eliminate stray light. This ensures that even when a bright moon is just outside the field, your view remains free of glare and internal reflections.\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\u003eThe Spacewalk Standard\u003c\/h3\u003e\n\u003cp\u003eDespite its high magnification, the 6mm Ethos maintains the series standard 15mm eye relief. This consistency is vital for observers who frequently swap focal lengths to match the atmospheric seeing conditions of the night.\u003c\/p\u003e\n\u003cp\u003eThe hybrid barrel design allows the 6mm to be used in 1.25\" focusers for grab and go refractors or 2\" diagonals for larger light buckets. Every internal surface is optimized with blackened lens edges and multi coatings to suppress ghosting when observing bright targets like Mars or the Moon.\u003c\/p\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\"\u003eIs the 6mm Ethos too much power for my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe usability of the 6mm depends on your telescope focal length and the local seeing conditions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8\" SCT:\u003c\/strong\u003e At 333x magnification, the 6mm Ethos is a specialized tool for nights of exceptional stability to view planetary detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/5 Reflector:\u003c\/strong\u003e In a 1200mm focal length scope, it provides 200x, which is a perfect high power workhorse for most nights.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 6mm Ethos compare to the 6mm Delos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary difference is the balance between eye relief and immersion:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelos 6mm:\u003c\/strong\u003e Features 20mm of eye relief, making it the better choice for those who must observe while wearing glasses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEthos 6mm:\u003c\/strong\u003e Provides the 100° \"spacewalk\" effect that makes the eyepiece barrel seem to disappear, though it has 15mm of eye relief.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 6mm Ethos parfocal with other Ethos eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 6mm is parfocal with the 8mm model. This allows you to increase magnification to check for fine detail without having to hunt for focus again.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 6mm Ethos in a 1.25\" diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 6mm Ethos uses a hybrid 2\" \/ 1.25\" barrel. It fits into standard 1.25\" equipment, but ensure your diagonal is high quality to support the 0.95 lb weight of the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a Paracorr with the 6mm Ethos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf you are using a fast Newtonian (f\/4.5 or faster), a Paracorr Type 2 is recommended. While the magnification is high, the 100° field is wide enough that mirror coma will be visible at the edges without correction.\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\u003eETH-06.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\" \/ 1.25\" Hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Compatibility\u003c\/td\u003e\n\u003ctd\u003eThreaded for 1.25\" filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e100°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e10.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e15.2 oz (0.95 lb \/ 430 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.1\" x 5.8\" (53.3 x 147 mm)\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\/TeleVue-Ethos-6mm-Eyepiece-1.jpg?v=1775096168\" alt=\"Ethos 6mm Eyepiece\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEthos 6mm 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?v=1774403118\" alt=\"Dust Cap (top)\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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-1_25inch-Dustcap.jpg?v=1774403145\" alt=\"Dust Cap (bottom)\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\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\/TeleVue-Ethos-6-8-10-13mm-Eyepieces-Manual.pdf?v=1775092656\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" 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\"\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\u003ca rel=\"noopener\" href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n\"@context\": \"https:\/\/schema.org\",\n\"@type\": \"FAQPage\",\n\"mainEntity\": [\n{\n\"@type\": \"Question\",\n\"name\": \"How does the 6mm Ethos compare to the 6mm Delos?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"The Delos 6mm is better for those who must wear glasses with 20mm eye relief, while the Ethos 6mm provides an immersive 100 degree spacewalk view.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Is the 6mm Ethos parfocal with other eyepieces?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes, it is parfocal with the 8mm Ethos model for quick focal length changes without refocusing.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can I use the 6mm Ethos for planetary viewing?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"The 6mm Ethos is an excellent planetary eyepiece, providing high magnification while keeping the entire planet in the field longer in manual telescopes.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"What is the weight of the 6mm Ethos?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"The 6mm Ethos weighs approximately 15.2 oz (430g), making it a manageable high power addition to most telescope setups.\"\n}\n}\n]\n}\n\u003c\/script\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51110251561245,"sku":"TV-ETH-06.0","price":980.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-6mm-Eyepiece-1.jpg?v=1775096168"},{"product_id":"televue-ethos-sx-4-7mm-110-eyepiece","title":"TeleVue Ethos-SX 4.7mm 110° Eyepiece - 1.25\"\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e4.7mm Focal Length\u003c\/li\u003e\n\u003cli\u003e110° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" \/ 1.25\" Hybrid Barrel\u003c\/li\u003e\n\u003cli\u003e15mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e8.9mm 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\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\u003eTeleVue Ethos 4.7mm SX 110° Eyepiece - 2\" \/ 1.25\"\u003c\/h2\u003e\n\u003cp\u003eIf you are looking for the highest practical magnification while still keeping the object comfortably in view, the 4.7mm Ethos SX sits in a very specific category: extreme power without losing context. This focal length represents a pinnacle in wide field optical engineering, pushing the boundaries from the standard 100° to a massive 110° Apparent Field of View. This provides 21 percent more field area than a 100° eyepiece, creating a viewing experience where the equipment boundaries completely disappear.\u003c\/p\u003e\n\u003cp\u003eThis is a specialist eyepiece. In a typical 8\" or larger telescope, it delivers very high magnification that only works well when atmospheric conditions cooperate. When they do, it gives you a level of detail on the Moon, planets, and compact deep sky objects that is difficult to achieve while still maintaining a wide, usable field. The 8.9mm field stop is optimized to provide high magnification while still offering enough sky context to frame entire lunar crater complexes or large planetary nebulae.\u003c\/p\u003e\n\u003cp\u003eThe extra space provided by the 110° field is not just visual comfort. It is what makes high magnification usable in manual tracking telescopes, where keeping objects centered would otherwise become a constant effort. It is parfocal with the 3.7mm Ethos SX, allowing for seamless high power transitions when atmospheric conditions permit.\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\u003eHigh Power Without Losing the Object\u003c\/h3\u003e\n\u003cp\u003eAt 4.7mm, you are firmly in high magnification territory. In most telescopes, this is where the view normally becomes narrow and demanding to track. The 110° field changes that experience by expanding the peripheral view, allowing you to use high magnification without the claustrophobic sensation typically associated with short focal length eyepieces.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar Exploration:\u003c\/strong\u003e Wide enough to capture the entire Alpine Valley or the floor of Copernicus with enough surrounding terrain to maintain a sense of scale.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanetary Viewing:\u003c\/strong\u003e Jupiter, Saturn, and Mars remain in the field significantly longer in manual Dobsonian setups, reducing constant nudging and letting you focus on Jovian detail instead of tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep Sky Contrast:\u003c\/strong\u003e The short focal length produces a very small exit pupil that darkens the sky background to the extreme, making subtle filaments in the Ring Nebula or the Eskimo Nebula stand out.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is not a general purpose eyepiece. It is designed for nights when seeing supports high magnification and you want to extract maximum detail without switching to a narrow, restrictive field.\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\u003eWhen This Eyepiece Works Best\u003c\/h3\u003e\n\u003cp\u003eThe 4.7mm Ethos SX is only as good as your observing conditions and telescope setup. In steady seeing conditions, it becomes one of the most powerful visual tools available for resolving fine planetary and lunar structure. In average or turbulent seeing, the magnification will often exceed what the atmosphere can support, regardless of optical quality. In those conditions, a 6mm or 8mm Ethos will usually deliver a more consistent result.\u003c\/p\u003e\n\u003cp\u003eThis is why experienced observers treat the 4.7mm as a seeing dependent eyepiece rather than a daily use focal length. However, for owners of fast Newtonians or short focal length refractors, it often becomes the primary tool for high resolution work.\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\u003eHybrid Mounting and Optical Design\u003c\/h3\u003e\n\u003cp\u003eThe Ethos 4.7mm SX uses Tele Vue’s hybrid 2\" \/ 1.25\" barrel system, allowing it to integrate with a wide range of focusers and diagonals without adapters. Like all Tele Vue Ethos eyepieces, it uses advanced multi coatings and fully blackened internal surfaces to maintain contrast at high magnification, where optical imperfections become more noticeable.\u003c\/p\u003e\n\u003cp\u003eIn fast Newtonians, a Tele Vue Paracorr Type 2 is recommended to maintain pinpoint stars across the full 110° field, especially when observing bright planets or high contrast lunar detail. This ensures that the massive field of view is sharp from center to edge.\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 does SX mean in the Ethos 4.7mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSX stands for Super eXtended. It refers to the expanded 110° apparent field of view, which increases the usable field area by 21 percent compared to standard 100° Ethos models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 4.7mm Ethos too much magnification for most telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn many 8\" SCTs and larger long focal length telescopes, 4.7mm produces very high magnification (over 400x) that is only usable during steady atmospheric conditions. In faster Newtonians or refractors, it falls into a more practical high power range of 200x to 250x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 110° field help at high magnification?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt high power, narrow field eyepieces require constant tracking. The 110° field keeps objects in view much longer, especially in manual Dobsonians, making high magnification more comfortable and less demanding to use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat eye relief does it provide?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe eyepiece provides 15mm of eye relief, which is sufficient for most observers. For those with astigmatism, the 4.7mm Ethos SX is fully compatible with the Tele Vue Dioptrx corrector for sharp views without glasses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a Paracorr with this eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn fast Newtonians (around f\/4.5 or faster), a Paracorr Type 2 is recommended to correct mirror coma and maintain edge sharpness across the vast 110° field.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eETH-04.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e4.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\" \/ 1.25\" Hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e110°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e8.9 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.0 lb (16 oz \/ 454 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Compatibility\u003c\/td\u003e\n\u003ctd\u003eThreaded for 1.25\" and 2\" Filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e53.3 x 147 mm\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\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-SX-4_7mm-Eyepiece-1.jpg?v=1775101116\" alt=\"Ethos 4.7mm SX Eyepiece\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEthos 4.7mm SX 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?v=1774403118\" alt=\"Dust Cap\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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?v=1774403118\" alt=\"Dust Cap\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/TeleVue-Ethos-SX-Eyepieces-Manual.pdf?v=1775101962\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" 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\"\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\u003ca rel=\"noopener\" href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" target=\"_blank\"\u003e Tele Vue 5-Year Limited Warranty for Telescopes and Accessories \u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51110650511645,"sku":"TV-ETH-04.7","price":1043.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-SX-4_7mm-Eyepiece-1.jpg?v=1775101116"},{"product_id":"televue-ethos-sx-3-7mm-110-eyepiece","title":"TeleVue Ethos-SX 3.7mm 110° Eyepiece - 1.25\"\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e3.7mm Focal Length\u003c\/li\u003e\n\u003cli\u003e110° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" \/ 1.25\" Hybrid Barrel\u003c\/li\u003e\n\u003cli\u003e15mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e7.0mm 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\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\u003eTeleVue Ethos 3.7mm SX 110° Eyepiece - 2\" \/ 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Ethos 3.7mm SX (Super eXtended) is the ultimate high-magnification specialist in the Ethos line. While most wide-field eyepieces sacrifice field of view as focal lengths get shorter, the 3.7mm SX does the opposite—expanding to a massive 110° Apparent Field of View. This provides 21 percent more viewing area than a 100° eyepiece, creating an unparalleled \"spacewalk\" experience even at the extreme magnifications required for the finest celestial details.\u003c\/p\u003e\n\u003cp\u003eThis eyepiece is engineered for the most demanding visual tasks. In most telescopes, the 3.7mm focal length pushes the limits of atmospheric seeing, making it a \"treasure hunter\" tool for those nights of perfect stability. The 7.0mm field stop is meticulously optimized to deliver maximum contrast, allowing you to resolve the tiniest features on the lunar surface or separate the closest double stars that other eyepieces might merge into a single blur.\u003c\/p\u003e\n\u003cp\u003eThe 110° field is a functional necessity at this power level. By providing such a vast window, the 3.7mm SX allows objects to remain in the field of view significantly longer in non-tracking telescopes, giving your eye the time it needs to wait for those moments of perfect clarity. It is parfocal with the 4.7mm Ethos SX, making it easy to swap when you need that final jump in resolution.\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\u003eThe Ultimate High-Resolution Tool\u003c\/h3\u003e\n\u003cp\u003eAt 3.7mm, you are accessing the top tier of your telescope's resolving power. The 110° field removes the \"tunnel vision\" usually felt at these magnifications, replacing it with an immersive vista that keeps you oriented within the star field.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar Prowess:\u003c\/strong\u003e Perfect for high-power exploration of rilles, dome structures, and the central peaks of craters like Tycho or Aristarchus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble Star Specialist:\u003c\/strong\u003e The extreme magnification and 110° field make it easier to split tight doubles while still seeing the surrounding star field for context.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Deep Sky:\u003c\/strong\u003e Ideal for magnifying small planetary nebulae or the cores of globular clusters, where the tiny 0.3mm to 0.5mm exit pupil (depending on your scope) provides an inky black sky background.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis eyepiece excels in short focal length refractors and fast Newtonians, where it provides high resolution without the magnification becoming unusable due to atmospheric turbulence.\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\u003eAtmospheric Limits and Performance\u003c\/h3\u003e\n\u003cp\u003eThe 3.7mm Ethos SX is a performance-first optic. Because it generates such high magnification, its performance is closely tied to the quality of your night sky. On nights of average seeing, the view may appear \"soft\" due to the atmosphere; however, on steady nights, this eyepiece will reveal details you simply cannot see with longer focal lengths.\u003c\/p\u003e\n\u003cp\u003eFor observers with large, fast Dobsonians, the 3.7mm SX often becomes the go-to choice for pushing the limits of the mirror's resolution. It provides the \"drift time\" necessary to observe comfortably without the constant, frantic nudging required by narrower 50° or 60° planetary eyepieces.\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\u003eHybrid Mounting and Professional Build\u003c\/h3\u003e\n\u003cp\u003eThe 3.7mm SX features the Tele Vue hybrid 2\" \/ 1.25\" barrel, ensuring it fits into almost any high-quality focuser or diagonal. To maintain the highest possible contrast at these power levels, Tele Vue utilizes advanced multi-coatings and internal baffling to eliminate stray light and ghosting.\u003c\/p\u003e\n\u003cp\u003eIn fast Newtonian systems (f\/4.5 or faster), using a Tele Vue Paracorr Type 2 is highly recommended. This ensures that the stars remain pinpoint sharp across the entire 110° field, allowing you to utilize every millimeter of that massive field stop for high-resolution observation.\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 makes the 3.7mm \"SX\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSX stands for Super eXtended. It refers to the 110° apparent field of view, which is a 10° increase over the standard Ethos series, providing a 21 percent larger viewing area.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs 3.7mm too much magnification for my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a long focal length telescope like an 8\" f\/10 SCT, 3.7mm produces over 500x magnification, which is rarely usable. It is best suited for refractors (like an NP101) or fast reflectors (f\/4 to f\/5) where it provides a practical high-power range of 150x to 300x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy use a 110° field for high power?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt high magnification, objects move across the field very quickly. The 110° field gives you significantly more \"drift time,\" meaning you spend more time observing the object and less time manually tracking or nudging your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 3.7mm Ethos with glasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe eyepiece has 15mm of eye relief. While some eyeglass wearers may find it tight to see the full 110° field, the 3.7mm SX is fully compatible with Tele Vue Dioptrx for correcting astigmatism without needing glasses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 3.7mm Ethos SX parfocal with others?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is parfocal with the 4.7mm Ethos SX. When switching from other Ethos focal lengths like the 13mm or 8mm, a very small focus adjustment may be required.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eETH-03.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e3.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\" \/ 1.25\" Hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e110°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e7.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.1 lb (17.6 oz \/ 500 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Compatibility\u003c\/td\u003e\n\u003ctd\u003eThreaded for 1.25\" and 2\" Filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e53.3 x 147 mm\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\u003cimg class=\"DAV-img-box\" alt=\"Ethos 3.7mm SX Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-SX-3_7mm-Eyepiece-1.jpg?v=1775102497\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEthos 3.7mm SX 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 class=\"DAV-img-box\" alt=\"Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 class=\"DAV-img-box\" alt=\"Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/TeleVue-Ethos-SX-Eyepieces-Manual.pdf?v=1775101962\" 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\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003e Tele Vue 5-Year Limited Warranty for Telescopes and Accessories \u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51110750388509,"sku":"TV-ETH-03.7","price":1043.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Ethos-SX-3_7mm-Eyepiece-1.jpg?v=1775102497"},{"product_id":"televue-plossl-55mm-50-eyepiece","title":"TeleVue Plössl 55mm 50° Eyepiece - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e55mm Focal Length\u003c\/li\u003e\n\u003cli\u003e50° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e38mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e46mm 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\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\u003eTeleVue Plössl 55mm 50° Eyepiece - 2\"\u003c\/h2\u003e\n\u003cp\u003eBy utilizing the largest field stop possible in a 2-inch barrel, the TeleVue Plössl 55mm  delivers the widest true field of view allowed by the format. It is the definitive choice for expansive celestial vistas, serving as the ultimate \"finder\" eyepiece for long focal length telescopes.\u003c\/p\u003e\n\u003cp\u003eWhether you are using a large Schmidt-Cassegrain (SCT) or a long-refractor, the 55mm Plössl transforms your narrow-field instrument into a wide-angle window to the stars. It is engineered with the same meticulous attention to detail as Tele Vue’s more complex designs, ensuring that even at this extreme focal length, the views remain sharp, high-contrast, and remarkably bright.\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\u003eThe Maximum True Field of View\u003c\/h3\u003e\n\u003cp\u003eIn visual astronomy, the true field of view (TFoV) is limited by the physical diameter of the eyepiece barrel. The Tele Vue 55mm Plössl features a 46mm field stop, which is the absolute maximum that can fit inside a 2-inch barrel. This results in a 50° apparent field that, when paired with the long 55mm focal length, provides a true field of sky that simply cannot be exceeded by any other 2-inch eyepiece.\u003c\/p\u003e\n\u003cp\u003eFor owners of f\/10 or f\/11 telescopes, this eyepiece is a revelation. It allows you to frame entire open clusters, large nebulae, and rich Milky Way star fields that would otherwise be cut off. It essentially provides the lowest useful magnification for your telescope, which is vital for locating objects and observing large-scale structures in the deep sky.\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\u003eExceptional Optical Clarity and Contrast\u003c\/h3\u003e\n\u003cp\u003eWhile the Plössl design is one of the oldest in astronomy, Tele Vue has refined it to a professional standard. By using high-index glass and proprietary multi-coatings, the 55mm Plössl minimizes the internal reflections and scattering often found in cheaper long-focal-length eyepieces.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge Sharpness:\u003c\/strong\u003e Unlike generic Plössls, the Tele Vue version is designed to maintain tight star images across the entire field. This is particularly noticeable in telescopes with slower focal ratios, where the stars remain points right up to the field stop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Transmission:\u003c\/strong\u003e The simple four-element design means there is less glass for light to pass through compared to complex ultra-wide eyepieces. This results in exceptional throughput, making it a favorite for hunting the faint outer halos of galaxies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeutral Color Rendition:\u003c\/strong\u003e There is no \"warm\" or \"cool\" tint here. The 55mm Plössl provides a transparent, natural view that allows the true colors of stars to shine through without interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Ideal Eyepiece for Night Vision and Afocal Imaging\u003c\/h3\u003e\n\u003cp\u003eIn recent years, the Tele Vue 55mm Plössl has found a second life as the gold standard for night vision astronomy. Because of its long focal length and massive exit pupil, it is the primary choice for \"afocal\" setups where a night vision monocular (like the PVS-14) is attached to the eyepiece. The 55mm focal length provides the necessary reduction to feed a bright, wide-angle image into the night vision device, dramatically increasing the visibility of H-alpha emissions and faint nebulosity.\u003c\/p\u003e\n\u003cp\u003eAdditionally, for traditional afocal photography, the 55mm Plössl provides a flat, well-corrected image that is ideal for projecting onto a camera sensor, especially when capturing wide-field lunar or solar panoramas with the appropriate filters.\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\u003eErgonomics and Massive Eye Relief\u003c\/h3\u003e\n\u003cp\u003eOne of the standout features of the 55mm Plössl is its 38mm of eye relief. This is significantly more than almost any other eyepiece on the market. For observers who must wear thick eyeglasses to correct for severe astigmatism, this eyepiece offers a level of comfort that is simply unmatched.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEye Guard Adjustment:\u003c\/strong\u003e Because the eye relief is so long, Tele Vue includes a large, adjustable rubber eyeguard. This allows you to find the perfect distance for your eye, preventing \"blackouts\" or kidney-beaning while blocking out stray light from the surrounding environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e Like all high-end Tele Vue eyepieces, the 55mm Plössl is compatible with the Dioptrx astigmatism corrector. This allows you to observe without your glasses while still achieving a perfectly sharp image.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild Quality:\u003c\/strong\u003e Despite its size, the eyepiece is surprisingly light at 18.1 oz (513 g) compared to many 2-inch wide-field eyepieces. This makes it much easier to balance on your telescope when switching from smaller 1.25-inch eyepieces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eComparative Perspective: Why the 55mm Plössl?\u003c\/h3\u003e\n\u003cp\u003eWhen selecting a low-power 2-inch eyepiece, the 55mm Plössl is often compared to the 41mm Panoptic or the 31mm Nagler.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Panoptic 41mm:\u003c\/strong\u003e Both eyepieces offer the same maximum true field of view (46mm field stop). However, the 55mm Plössl provides a larger exit pupil and lower magnification. If you have an f\/10 telescope, the 55mm is often the better choice for maximizing brightness, whereas the 41mm Panoptic is better for f\/7 or faster scopes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler 31mm:\u003c\/strong\u003e The \"Terminator\" 31mm Nagler provides a much wider apparent field (82°), but it cannot show more of the sky than the 55mm Plössl because they share the same field stop limit. The 55mm Plössl is significantly lighter, more affordable, and provides much better eye relief for glass wearers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIs the Tele Vue 55mm Plössl Worth It?\u003c\/h3\u003e\n\u003cp\u003eFor many, this is a utility eyepiece that quickly becomes a favorite. It is the eyepiece you reach for when you want to see the \"big picture\"—the Andromeda Galaxy in its entirety, the sprawling North American Nebula, or the full disc of the Moon with room to breathe. Its simplicity is its strength, offering a pure, bright, and incredibly wide view of the universe. For owners of long focal length telescopes or night vision enthusiasts, the Tele Vue 55mm Plössl is not just an option; it is an essential component of the optical train.\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\"\u003eWhy choose the TeleVue 55mm Plössl over a wide-angle eyepiece like the 41mm Panoptic?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBoth eyepieces share the maximum 46mm field stop, meaning they show the same true field of sky. The 55mm Plössl provides lower magnification and a larger exit pupil, which is superior for viewing faint nebulae with aggressive OIII or H-Beta filters. Additionally, it is significantly lighter, making it easier to balance on your mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this eyepiece suitable for \"fast\" (f\/4 or f\/5) telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eGenerally, no. On an f\/4.5 telescope, the 55mm produces a 12.2mm exit pupil. Since the average human eye only dilates to about 7mm, much of the light gathered is wasted. You may also see a distracting shadow of the secondary mirror in the center of the view in reflectors.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the 55mm Plössl considered the \"gold standard\" for SCTs?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOn standard f\/10 Schmidt-Cassegrains, this eyepiece yields a 5.5mm exit pupil—the sweet spot for low-power, deep-sky observing. It effectively maximizes the field of view of the telescope, turning a long-focal-length SCT into a capable \"rich-field\" sweeper.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI can't reach focus with this eyepiece; do I need an accessory?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 55mm Plössl requires significant \"out-travel\" because its field stop is located deep in the barrel. If you run out of focuser travel before reaching a sharp image, you will likely need a 2\" Eyepiece Barrel Extender (EBX-2120) to move the eyepiece further back.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I manage the long 38mm eye relief?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile great for eyeglass wearers, long eye relief can cause \"blackouts\" for those without glasses. Tele Vue includes a unique adjustable eyeguard that can be clicked up to find the perfect rest for your eye, ensuring your head is positioned correctly to see the full field comfortably.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan this eyepiece be used for Night Vision astronomy?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is a premier choice for afocal night vision. When used with a PVS-14 monocular, it serves as a high-quality relay. Tele Vue also offers a specific 67mm Converter lens designed to pair with this eyepiece to optimize the field for night vision intensifiers.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I see the shadow of my secondary mirror?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis \"black spot\" typically only appears during daytime use or when observing very bright targets like the Moon. In these cases, your pupil contracts and may become smaller than the secondary mirror shadow. For deep-sky observing at night, the shadow is usually invisible.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eEPL-55.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e55 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\u003e50°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e46 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e18.1 oz (1.13 lb \/ 513 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e4.8\" (122 mm)\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\u003cimg class=\"DAV-img-box\" alt=\"Tele Vue 55mm Plössl Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-55mm-Eyepiece-1.jpg?v=1774383600\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e55mm Plössl 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 class=\"DAV-img-box\" alt=\"Tele Vue 2-inch Dust Cap (top)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 class=\"DAV-img-box\" alt=\"Tele Vue 2-inch Dust Cap (bottom)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/TeleVue-55mm-Plossl-Eyepiece-Manual.pdf?v=1775616275\" 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\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51124508721437,"sku":"TV-EPL-55.0","price":406.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-55mm-Eyepiece-1.jpg?v=1775525590"},{"product_id":"televue-plossl-40mm-43-eyepiece","title":"TeleVue Plössl 40mm 43° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e40mm Focal Length\u003c\/li\u003e\n\u003cli\u003e43° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e28mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e27mm 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\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\u003eTeleVue Plössl 40mm 43° Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe TeleVue Plössl 40mm is the maximum focal length achievable within the 1.25-inch barrel format. By utilizing a 27mm field stop, this eyepiece provides the widest possible true field of view for any 1.25\" focuser, making it an indispensable tool for owners of small refractors, Maksutovs, and SCTs who require a low-power \"finder\" or rich-field experience.\u003c\/p\u003e\n\u003cp\u003eWhile many generic 40mm Plössls suffer from internal reflections and soft edges, TeleVue’s execution is a masterclass in optical discipline. It is designed to deliver high-contrast, diffraction-limited images that maintain the integrity of the Al Nagler signature: sharpness from center to edge.\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\u003eThe Limit of the 1.25\" Format\u003c\/h3\u003e\n\u003cp\u003eThe true field of view in an eyepiece is physically constrained by the inner diameter of the barrel. With a 27mm field stop, the TeleVue 40mm Plössl hits the absolute wall of what is possible in a 1.25\" accessory. While it features a narrower 43° apparent field compared to the 32mm Plössl (50°), both eyepieces show the exact same amount of sky. The 40mm choice is specifically for those who prioritize a larger exit pupil and greater eye relief over apparent field width.\u003c\/p\u003e\n\u003cp\u003eFor observers using f\/10 or f\/12 instruments, the 40mm focal length provides the necessary exit pupil to keep images bright when hunting faint, extended objects like the North American Nebula or M31, where every photon counts.\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\u003eSuperior Contrast and Optical Coatings\u003c\/h3\u003e\n\u003cp\u003eTeleVue’s Plössl design uses high-index glass and proprietary multi-coatings to ensure maximum light transmission. In a four-element design, the reduction of air-to-glass surfaces minimizes scattering, providing a \"jet-black\" background that enhances the visibility of low-contrast deep-sky structures.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge Correction:\u003c\/strong\u003e TeleVue Plössls are specifically corrected for astigmatism and aberrations at the edge of the field, even in faster focal ratios, though they truly excel in telescopes of f\/6 and slower.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiffraction-Limited Performance:\u003c\/strong\u003e This is not a \"budget\" Plössl. It is built to the same exacting standards as the Delos or Nagler series, ensuring the 40mm focal length doesn't introduce unwanted flare or ghosting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome-Plated Barrels:\u003c\/strong\u003e Precision-machined barrels with safety undercuts ensure the eyepiece sits securely and square in the optical axis, maintaining collimation integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eExceptional Comfort for Eyeglass Wearers\u003c\/h3\u003e\n\u003cp\u003eWith 28mm of eye relief, the 40mm Plössl is one of the most comfortable eyepieces in the TeleVue catalog. If you suffer from astigmatism and must observe with your glasses on, this eyepiece allows you to see the entire field stop without pressing your lenses against the rubber guard.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e The 40mm Plössl is fully compatible with the TeleVue Dioptrx system. This allows you to attach a professional-grade astigmatism corrector directly to the eyepiece, finally allowing you to observe without spectacles while maintaining a perfect point-spread function.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Eye Guard:\u003c\/strong\u003e To prevent stray light and help position the eye for those not wearing glasses, the eyepiece features a fold-down rubber eyeguard that assists in maintaining the proper exit pupil distance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTechnical Trade-offs: 40mm vs. 32mm\u003c\/h3\u003e\n\u003cp\u003eA common question among experienced observers is whether to choose the 32mm or 40mm Plössl. Since both share the 27mm field stop, the true field of view is identical.\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe 40mm Advantage:\u003c\/strong\u003e Provides a 25% larger exit pupil. This makes the image appear brighter in slow telescopes (f\/10+) and is often preferred for use with narrow-band filters (OIII, H-Beta).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe 32mm Advantage:\u003c\/strong\u003e Provides higher magnification and a wider 50° apparent field, which darkens the sky background—a benefit for city-dwelling observers battling light pollution.\u003c\/li\u003e\n\u003c\/ul\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\"\u003eDoes the TeleVue 40mm Plössl show more sky than the 32mm Plössl?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The TeleVue 40mm Plössl and a 32mm Plössl both use the maximum field stop possible in a 1.25\" barrel, so they show essentially the same True Field of View. The 40mm provides lower magnification and a brighter image, while the 32mm offers a more immersive apparent field.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy choose the TeleVue 40mm Plössl instead of a 32mm Plössl?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe TeleVue 40mm Plössl produces a brighter image due to its larger exit pupil, making it ideal for nebula filters and long focal ratio telescopes such as SCTs, Maksutovs, and refractors. A 32mm Plössl is often preferred for general observing because of its wider apparent field.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I see the secondary mirror shadow with the TeleVue 40mm Plössl?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn fast telescopes (f\/4 to f\/5) or during daytime use, the large exit pupil of the TeleVue 40mm Plössl can exceed your eye’s pupil, making the secondary mirror shadow visible. This is rarely an issue at night with slower systems like f\/10 SCTs.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy does the TeleVue 40mm Plössl have a 43° field of view?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 1.25\" barrel format limits the maximum field size. At a 40mm focal length, the TeleVue 40mm Plössl must use a narrower apparent field to avoid vignetting. Wider views at this focal length require a 2\" eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the TeleVue 40mm Plössl good for imaging or night vision?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The long eye relief of the TeleVue 40mm Plössl makes it easy to position a camera for afocal imaging. It is also commonly used in night vision setups where a compact 1.25\" format is preferred.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I manage the long eye relief of the TeleVue 40mm Plössl?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe TeleVue 40mm Plössl has very long eye relief, which is excellent for eyeglass wearers but can make eye placement sensitive. If you experience blackouts or difficulty positioning your eye, adding an eyeguard extender such as the EGE-0020 helps set the correct eye distance and improves viewing comfort.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eEPL-40.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e43°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e6.8 oz (193 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e3.1\" (79 mm)\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\u003cimg class=\"DAV-img-box\" alt=\"Tele Vue 40mm Plössl Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-40mm-Eyepiece-1.jpg?v=1775526672\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e40mm Plössl 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 class=\"DAV-img-box\" alt=\"Tele Vue Dust Cap (top)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 class=\"DAV-img-box\" alt=\"Tele Vue 1.25-inch Dust Cap (bottom)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-1_25inch-Dustcap.jpg?v=1774403145\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/TeleVue-40mm-Plossl-Eyepiece-Manual.pdf?v=1775699562\" 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\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51124531364125,"sku":"TV-EPL-40.0","price":246.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-40mm-Eyepiece-1.jpg?v=1775526672"},{"product_id":"televue-plossl-32mm-50-eyepiece","title":"TeleVue Plössl 32mm 50° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e32mm Focal Length\u003c\/li\u003e\n\u003cli\u003e50° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e22mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e27mm 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\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\u003eTeleVue Plössl 32mm 50° Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe TeleVue Plössl 32mm is widely considered the standard for low-power, wide-field observation in the 1.25-inch format. By utilizing the maximum 27mm field stop allowable by the barrel diameter, it provides the widest true field of view possible before transitioning to 2-inch accessories. Unlike longer focal length alternatives, the 32mm maintains a generous 50° apparent field, offering a more immersive experience without sacrificing sky coverage.\u003c\/p\u003e\n\u003cp\u003eEngineered to Al Nagler’s rigorous standards, this eyepiece is optimized for edge-to-edge sharpness and high contrast. It serves as the primary \"finder\" eyepiece for many observers, delivering bright, diffraction-limited images that reveal fine details in extended deep-sky objects.\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\u003eMaximizing the 1.25\" True Field\u003c\/h3\u003e\n\u003cp\u003eIn visual astronomy, the true field of view is governed by the field stop diameter. The TeleVue 32mm Plössl features a 27mm field stop, which is the mechanical limit of the 1.25\" barrel. While a 40mm Plössl shares this same field stop, the 32mm model is often preferred because it achieves the same true field of sky at a higher magnification. This results in a darker sky background and increased contrast, making it easier to resolve faint stars and subtle nebulosity.\u003c\/p\u003e\n\u003cp\u003eFor owners of Schmidt-Cassegrains (SCT) or Maksutov-Cassegrains, the 32mm Plössl is a vital component. It provides a balanced exit pupil that maximizes image brightness while maintaining enough magnification to identify small galaxies and planetary nebulae.\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\u003eAdvanced Optical Construction\u003c\/h3\u003e\n\u003cp\u003eTeleVue Plössls are not generic mass-market optics. They utilize high-index glass and full multi-coatings to ensure exceptional light throughput and minimal internal reflections. The four-element design is a benchmark for purity, offering a neutral color rendition that is essential for critical planetary and lunar observation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStray Light Control:\u003c\/strong\u003e The lens edges are blackened and the internal barrel features anti-reflection threads to eliminate \"ghosting\" and flare when bright objects like the Moon are just outside the field of view.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParfocal Design:\u003c\/strong\u003e The 32mm is parfocal with shorter focal length TeleVue Plössls (8mm through 25mm), allowing you to swap eyepieces during an observation session with minimal refocusing required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiffraction-Limited Performance:\u003c\/strong\u003e Even in \"fast\" telescopes with focal ratios as low as f\/5, the 32mm Plössl maintains tight star points across the majority of the field, a feat many budget Plössls cannot match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eErgonomics and Binoviewer Optimization\u003c\/h3\u003e\n\u003cp\u003eWith 22mm of eye relief, the 32mm Plössl is highly accessible for all observers. The physical profile is slim and lightweight (6.2 oz), making it a top-tier choice for binoviewer applications where weight and interpupillary distance are critical factors.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e This eyepiece is fully compatible with the Dioptrx astigmatism corrector. By attaching a Dioptrx lens, observers with astigmatism can experience the full optical potential of their telescope without the limitations of wearing eyeglasses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRubber Eyeguard:\u003c\/strong\u003e The fold-down rubber eyeguard helps block peripheral light and provides a comfortable rest for the eye, aiding in the prevention of \"kidney-beaning\" or blackouts by ensuring proper eye positioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eStrategic Comparison: 32mm vs. 40mm\u003c\/h3\u003e\n\u003cp\u003eObservers often debate between the 32mm and 40mm Plössl. While both show the same true field of view:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe 32mm Advantage:\u003c\/strong\u003e Higher magnification leads to a darker sky background, which improves the visibility of deep-sky objects by increasing the contrast between the object and the sky. The 50° apparent field also feels less \"claustrophobic\" than the 43° field of the 40mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe 40mm Advantage:\u003c\/strong\u003e Useful primarily for very slow telescopes (f\/12 to f\/15) where a larger exit pupil is required to maintain image brightness, or for specific night vision and afocal imaging applications.\u003c\/li\u003e\n\u003c\/ul\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\"\u003eDoes the 32mm Plössl show the same field of view as the 40mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Both eyepieces utilize the maximum 27mm field stop allowable in a 1.25\" barrel. Consequently, they show the exact same amount of sky. The 32mm is generally preferred because it provides higher magnification and a wider 50° apparent field, which results in a more natural and high-contrast viewing experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 32mm Plössl a good choice for an f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is one of the best 1.25\" choices for an f\/10 Schmidt-Cassegrain. It produces a 3.2mm exit pupil, which is ideal for deep-sky observation, providing enough brightness for nebulae while maintaining a dark enough background to see faint stars clearly.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I prevent \"blackouts\" or \"kidney-beaning\" with this eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBecause the 32mm has a generous 22mm of eye relief, \"blackouts\" can occur if your eye is positioned too close to the lens. To fix this, ensure the rubber eyeguard is folded up and use it as a physical guide to keep your eye at the correct distance. If you wear glasses, you can fold the guard down to see the entire field comfortably.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I buy a TeleVue Plössl instead of a cheaper brand?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eGeneric Plössls often use lower-grade glass and simplified coatings that result in internal reflections and soft edges. TeleVue uses high-index glass and precision multi-coatings to ensure that the image remains sharp and high-contrast across the entire field, even in faster telescopes (f\/5 or f\/6) where cheaper designs typically fail.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this eyepiece suitable for use in a binoviewer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 32mm Plössl is a favorite for binoviewing. Its narrow body allows for easy interpupillary adjustment, and its light weight prevents balance issues on the telescope. Using a pair of 32mm Plössls provides a stunning, high-contrast \"3D\" effect on lunar and deep-sky targets.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eEPL-32.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e50°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e22 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e6.2 oz (176 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e2.8\" (71 mm)\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\u003cimg class=\"DAV-img-box\" alt=\"Tele Vue 32mm Plössl Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-32mm-Eyepiece-1.jpg?v=1775700239\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e32mm Plössl 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 class=\"DAV-img-box\" alt=\"Tele Vue Dust Cap (top)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 class=\"DAV-img-box\" alt=\"Tele Vue 1.25-inch Dust Cap (bottom)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-1_25inch-Dustcap.jpg?v=1774403145\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/TeleVue-32mm-Plossl-Eyepiece-Manual.pdf?v=1775700261\" 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\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51130595541277,"sku":"TV-EPL-32.0","price":246.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-32mm-Eyepiece-1.jpg?v=1775700239"},{"product_id":"televue-plossl-25mm-50-eyepiece","title":"TeleVue Plössl 25mm 50° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e25mm Focal Length\u003c\/li\u003e\n\u003cli\u003e50° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e17mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e21.2mm 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\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\u003eTeleVue Plössl 25mm 50° Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe TeleVue Plössl 25mm is a versatile, medium-power workhorse that strikes an ideal balance between magnification and field of view. While the larger 32mm and 40mm versions are designed to push the physical limits of the 1.25-inch barrel, the 25mm Plössl is optimized for high-contrast lunar, planetary, and deep-sky observation where framing and detail are equally prioritized.\u003c\/p\u003e\n\u003cp\u003eAs part of the original TeleVue Plössl series, this eyepiece is engineered to outperform generic four-element designs by utilizing superior glass types and precision multi-coatings. It delivers a 50° apparent field that is diffraction-limited, ensuring that star images remain sharp and pinpoint from the center of the axis to the very edge of the field stop.\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\u003eA Balanced Perspective for Medium Power\u003c\/h3\u003e\n\u003cp\u003eFor many observers, the 25mm focal length represents the \"sweet spot\" for mid-range scanning. In an 8\" f\/10 Schmidt-Cassegrain, it provides 80x magnification and a 2.5mm exit pupil, settings that are frequently cited by experts as optimal for resolving globular clusters and larger planetary nebulae. Unlike the TeleVue 32mm Plössl, which is often used for locating objects, the 25mm begins to reveal the intricate textures within those objects.\u003c\/p\u003e\n\u003cp\u003eBecause it shares the same high-index glass and optical pedigree as its larger siblings, the 25mm Plössl maintains exceptional throughput. This makes it a preferred choice for viewing faint, low-surface-brightness targets where complex, multi-lens wide-field eyepieces might introduce unwanted light loss.\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\u003eTeleVue Optical Integrity\u003c\/h3\u003e\n\u003cp\u003eEvery TeleVue Plössl 25mm is built to deliver a neutral color rendition and a jet-black sky background. By minimizing internal reflections and scattering, TeleVue ensures that the subtle color differences on the Jovian cloud belts or the delicate hues of double stars are rendered accurately.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlackened Lens Edges:\u003c\/strong\u003e To prevent stray light from degrading contrast, all lens edges are chemically blackened, and internal surfaces are multi-threaded for maximum light absorption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParfocal Convenience:\u003c\/strong\u003e The 25mm Plössl is parfocal with the 32mm and smaller focal lengths in the series. This allows for seamless transitions between powers without the need for significant refocusing, which is critical during nights of steady seeing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Precision:\u003c\/strong\u003e The chrome-plated barrel is machined to tight tolerances to ensure it remains perfectly centered in the focuser, preserving the optical alignment of your entire system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eViewing Comfort and Eye Placement\u003c\/h3\u003e\n\u003cp\u003eWith 17mm of eye relief, the 25mm Plössl provides a comfortable viewing experience for most users. While slightly shorter than the 22mm found on the TeleVue 32mm Plössl, it still allows many eyeglass wearers to see the full field without difficulty. For those who do not wear glasses, the eyepiece offers a stable eye position that minimizes the chance of image blackouts.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRubber Eyeguard:\u003c\/strong\u003e The included fold-down rubber eyeguard helps to position the eye at the correct distance and shields the observer from peripheral light pollution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e The lightweight design makes this an ideal candidate for smaller telescopes and travel setups where larger, heavier eyepieces would compromise the mount's balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWhy Choose the 25mm Plössl?\u003c\/h3\u003e\n\u003cp\u003eIn a collection of eyepieces, the 25mm Plössl often becomes the most used accessory. It is lightweight, compact, and provides higher magnification than a 32mm while maintaining a much brighter exit pupil than a 15mm or 11mm. Whether you are using it in a binoviewer for a high-fidelity lunar experience or as your primary deep-sky tool, the TeleVue 25mm Plössl offers professional-grade performance in a simple, elegant design.\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\"\u003eHow does the 25mm compare to the TeleVue 32mm Plössl?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 25mm provides higher magnification than the TeleVue 32mm Plössl, making it better suited for resolving finer details in clusters and nebulae. While the TeleVue 32mm Plössl maximizes the 1.25\" true field of view for finding objects, the 25mm offers a darker sky background and a smaller exit pupil, which can help \"pop\" faint details out of light-polluted skies.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 25mm Plössl a good choice for binoviewers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Many observers prefer the 25mm focal length over the TeleVue 32mm Plössl for binoviewing because it provides a bit more magnification while remaining very lightweight. A pair of 25mm Plössls is excellent for \"spacewalk\" lunar views and is easy to balance on most mounts.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the TeleVue 25mm Plössl with my glasses on?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 25mm features 17mm of eye relief. For most users with thin glasses, the full 50° field is visible. However, if you have thick lenses or prefer more room, the TeleVue 32mm Plössl or 40mm Plössl offer even longer eye relief.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 25mm Plössl work well in a fast (f\/5) Newtonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While simple Plössl designs from other brands often show astigmatism at the edges in fast scopes, TeleVue Plössls are specifically designed to maintain sharpness. In an f\/5 system, the 25mm yields a 5mm exit pupil, which is a perfect \"all-around\" setting for many deep-sky targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 25mm Plössl parfocal with the other TeleVue Plössl models?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the TeleVue 8mm, 11mm, 15mm, 20mm, 25mm and 32mm Plössl are part of the same parfocal group. This means you can switch between eyepieces with little to no adjustment of the focuser. Note that the Tele Vue 40mm and 55mm Plössl are not parfocal with the rest of the series.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eEPL-25.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e50°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e17 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e21.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.8 oz (136 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e2.5\" (64 mm)\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\u003cimg class=\"DAV-img-box\" alt=\"Tele Vue 25mm Plössl Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-25mm-Eyepiece-1.jpg?v=1775703733\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e25mm Plössl 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 class=\"DAV-img-box\" alt=\"Tele Vue Dust Cap (top)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 class=\"DAV-img-box\" alt=\"Tele Vue 1.25-inch Dust Cap (bottom)\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-1_25inch-Dustcap.jpg?v=1774403145\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/TeleVue-25mm-Plossl-Eyepiece-Manual.pdf?v=1775703954\" 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\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51130954055965,"sku":"TV-EAP-25.0","price":193.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-25mm-Eyepiece-1.jpg?v=1775703733"},{"product_id":"televue-plossl-20mm-50-eyepiece","title":"TeleVue Plössl 20mm 50° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e20mm Focal Length\u003c\/li\u003e\n\u003cli\u003e50° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e15mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e17.1mm 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\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\u003eTeleVue Plössl 20mm 50° Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe TeleVue Plössl 20mm 50° Eyepiece is a four-element symmetric design engineered to provide high-contrast lunar and planetary images in 1.25-inch format focusers. This focal length serves as a medium-power optic in most amateur telescopes, balancing magnification and exit pupil for deep-sky and solar system targets. Every air-to-glass surface features proprietary multi-coatings to reduce internal reflections and maximize transmission.\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\u003e17.1mm Field Stop and Framing Performance\u003c\/h3\u003e\n\u003cp\u003eThe 17.1mm field stop produces a 50° apparent field of view (AFOV) that remains sharp to the edge when used in telescopes with slower focal ratios. In an 8-inch f\/10 Schmidt-Cassegrain, this eyepiece yields 100x magnification and a 0.5° true field, sufficient to frame the full disc of the Moon. This field diameter is physically constrained by the symmetric Plössl geometry to ensure stars do not suffer from significant edge-of-field aberrations.\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\u003eOptical Baffling and Contrast for Planetary Detail\u003c\/h3\u003e\n\u003cp\u003eTeleVue utilizes high-index glass and blackened lens edges to minimize stray light scattering when observing bright targets like Jupiter or Venus. The simplified four-element layout has fewer air-to-glass surfaces than ultra-wide designs, which can reduce the probability of ghosting during lunar observations. This design provides a neutral color rendition, preserving the natural chromatic appearance of double stars like Albireo (Beta Cygni).\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\u003e15mm Eye Relief and Mechanical Compatibility\u003c\/h3\u003e\n\u003cp\u003eWith 15mm of eye relief, the TeleVue Plössl 20mm allows most observers to see the entire 50° field, though eyeglass wearers with thick frames may find the distance tight. The 1.25-inch barrel is threaded for standard filters and features a safety undercut to prevent the eyepiece from slipping out of the diagonal or focuser. At a weight of 3.8 oz, this optic is significantly lighter than wide-angle alternatives, reducing the need for mount rebalancing.\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\u003eTeleVue Plössl 20mm vs. 19mm Panoptic: Field vs. Eye Relief\u003c\/h3\u003e\n\u003cp\u003eWhile the 19mm Panoptic offers a wider 68° apparent field, the TeleVue Plössl 20mm utilizes a simpler optical path that some observers prefer for critical on-axis planetary work. The 20mm Plössl is more compact and budget-accessible but offers slightly less eye relief (15mm) compared to the 19mm Panoptic (13mm, though with a different eye guard style). Choose the Plössl for high center-field contrast in long focal length refractors or SCTs.\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\"\u003eIs the TeleVue Plössl 20mm suitable for use with a Barlow lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 20mm Plössl pairs well with the TeleVue 2x or 3x Barlow. When used with a 2x Barlow, it functions as a 10mm eyepiece with high contrast, while maintaining its original 15mm eye relief for comfortable high-power viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the TeleVue Plössl 20mm with a Dioptrx corrector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the 20mm Plössl is not directly compatible with the TeleVue Dioptrx astigmatism corrector. The Dioptrx requires specific eyeguard housing sizes found on longer focal length Plössls (32mm and 55mm) or Radian, Delos, and Nagler series eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the TeleVue Plössl 20mm work well in fast f\/4 or f\/5 Newtonian telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile sharp on-axis, simple Plössl designs show astigmatism near the edge of the field in telescopes faster than f\/5. For pinpoint stars to the edge in fast Dobsonians, consider the TeleVue Delos or DeLite series, though the 20mm Plössl remains an excellent center-field performer.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eEAP-20.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e50°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e17.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.8 oz (108 g)\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\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-20mm-Eyepiece-1.jpg?v=1775788667\" alt=\"TeleVue 20mm Plössl\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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-Dust-Cap-Top.jpg?v=1775788926\" alt=\"TeleVue 20mm Plössl Dust Cap Top\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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-1_25inch-Dustcap.jpg?v=1774403145\" alt=\"TeleVue 20mm Plössl Dust Cap Bottom\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/TeleVue-20mm-Plossl-Eyepiece-Manual.pdf?v=1775788607\" 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\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51134646386973,"sku":"TV-EAP-20.0","price":193.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-20mm-Eyepiece-1.jpg?v=1775788667"},{"product_id":"tele-vue-delite-13mm-62-eyepiece","title":"Tele Vue DeLite 13mm 62° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e13mm Focal Length\u003c\/li\u003e\n  \u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n  \u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n  \u003cli\u003e20mm Eye Relief\u003c\/li\u003e\n  \u003cli\u003e13.8mm 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 DeLite 13mm 62° Eyepiece - 1.25\"\u003c\/h2\u003e\n          \u003cp\u003eThe Tele Vue DeLite 13mm is engineered as a compact, lightweight evolution of the Delos series, utilizing optical advancements derived from the Ethos project to achieve high-contrast performance in a 1.25-inch format. By scaling the design to a 62° apparent field, this optic maintains the pure image quality of the Delos while reducing total mass to 7.8 oz. It serves as a technically precise solution for observers requiring long eye relief and Dioptrx compatibility in a portable mechanical footprint.\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\u003e20mm Eye Relief and Adjustable Locking Eyeguard\u003c\/h3\u003e\n    \u003cp\u003eThe Tele Vue DeLite 13mm is engineered with a constant 20mm eye relief and a sliding mechanical housing to ensure consistent, comfortable eye placement for all observers. This long-relief design allows eyeglass wearers to maintain enough clearance to see the entire 62° field without contact between spectacles and the eyepiece. By locking the eyeguard at the specific height required for your eye's anatomy, you effectively eliminate the blackouts and \"kidney-beaning\" caused by improper eye positioning.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSliding Locking Eyeguard:\u003c\/strong\u003e Provides a physical hard-stop to secure the optimal eye point for consistent viewing sessions.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e Integrates directly with Tele Vue Dioptrx lenses to resolve eyesight astigmatism while maintaining the ergonomic benefits of long eye relief.\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\u003e13.8mm Field Stop and Framing Capacity\u003c\/h3\u003e\n          \u003cp\u003eWith a 13.8mm field stop, the Tele Vue DeLite 13mm is designed to provide a true field of view that frames compact deep-sky objects such as the Hercules Cluster (M13) with significant dark sky context. In an 8-inch f\/6 Dobsonian, this eyepiece produces 92x magnification, a combination that balances background sky darkness with enough scale to resolve outer stellar members. The 62° field format is physically smaller than the Delos or Nagler lines, facilitating easier balance on lightweight mounts.\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\u003c\/h3\u003e\n          \u003cp\u003eObservers often evaluate the Tele Vue DeLite 13mm against wider-field designs based on weight, eye relief, and specific telescope requirements.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003evs. 13mm Nagler Type 6:\u003c\/strong\u003e The Nagler provides an 82° field but limits eye relief to 12mm, whereas the DeLite 13mm provides 20mm of eye relief for eyeglass compatibility.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003evs. 12mm Delos:\u003c\/strong\u003e While the Delos offers a 72° field and 20mm eye relief, the DeLite 13mm weighs approximately 45% less, improving balance on lightweight tracking mounts.\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\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Tele Vue DeLite 13mm a good all-around eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the 13mm focal length is considered a sweet spot for many telescopes. It provides mid-range magnification that is powerful enough for lunar and planetary detail while maintaining a wide enough field to observe larger deep-sky objects like the Orion Nebula or Hercules Cluster.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the DeLite 13mm compare to the 13mm Nagler Type 6?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe 13mm DeLite focuses on maximum comfort and contrast with 20mm of eye relief and a 62° field. In contrast, the 13mm Nagler offers a wider 82° immersive view but has a much tighter 12mm eye relief, making the DeLite the preferred choice for those who wear glasses or observers who prefer a more relaxed eye position.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the DeLite 13mm comfortable for eyeglass wearers?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. With a generous 20mm of eye relief and a unique sliding, locking eyeguard, the DeLite 13mm allows users to maintain their glasses while seeing the full field of view. The adjustable guard allows you to set the perfect height to eliminate blackouts and eye strain.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the DeLite 13mm in a binoviewer?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe DeLite 13mm is highly recommended for binoviewing due to its slim, lightweight 7.8 oz design. Its narrow body provides ample space for nose clearance between the two eyepieces, and its parfocal nature makes it easy to swap with other Tele Vue eyepieces without major refocusing.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the 13mm DeLite different from the Delos series?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe DeLite 13mm is essentially a smaller, more economical, and lighter version of the 13mm Delos. While it reduces the apparent field of view from 72° to 62°, it retains the same elite glass quality, high contrast, and 20mm eye relief in a more portable, compact package.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003ctable class=\"DAV-specifications\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e13 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e13.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.8 oz (221 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eElements\/Groups\u003c\/td\u003e\n\u003ctd\u003e6\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes (Group B)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003cimg alt=\"13mm DeLite Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-13mm-Eyepiece-1.jpg?v=1776214371\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDeLite 13mm 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 alt=\"Dust Cap Top\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 alt=\"1.25-inch Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/div\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-DeLite-Manual.pdf?v=1776216181\" 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\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51170682765597,"sku":"TV-EDE-13.0","price":427.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-13mm-Eyepiece-1.jpg?v=1776214371"},{"product_id":"tele-vue-delite-9mm-62-eyepiece-1-25","title":"Tele Vue DeLite 9mm 62° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e9mm Focal Length\u003c\/li\u003e\n  \u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n  \u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n  \u003cli\u003e20mm Eye Relief\u003c\/li\u003e\n  \u003cli\u003e10.2mm 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 DeLite 9mm 62° Eyepiece - 1.25\"\u003c\/h2\u003e\n          \u003cp\u003eThe Tele Vue DeLite 9mm is a high-magnification optic developed as a more compact and economical alternative to the Delos series while maintaining identical 20mm eye relief. Built on the optical heritage of the Ethos project, this 1.25-inch eyepiece provides high-contrast planetary and lunar views without the bulk of larger ultra-wide designs. It serves as a technically precise solution for observers who prioritize ergonomic comfort and Dioptrx compatibility during high-power observation.\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\u003e20mm Eye Relief and Adjustable Locking Eyeguard\u003c\/h3\u003e\n          \u003cp\u003eThe Tele Vue DeLite 9mm is engineered with a constant 20mm eye relief and a sliding mechanical housing to ensure consistent, comfortable eye placement for all observers. This long-relief design allows eyeglass wearers to maintain enough clearance to see the entire 62° field without contact between spectacles and the eyepiece. By locking the eyeguard at the specific height required for your eye's anatomy, you effectively eliminate the blackouts and \"kidney-beaning\" caused by improper eye positioning.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eSliding Locking Eyeguard:\u003c\/strong\u003e Provides a physical hard-stop to secure the optimal eye point for consistent viewing sessions.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e Integrates directly with Tele Vue Dioptrx lenses to resolve eyesight astigmatism while maintaining the ergonomic benefits of long eye relief.\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\u003e10.2mm Field Stop and High-Power Resolution\u003c\/h3\u003e\n          \u003cp\u003eWith a 10.2mm field stop, the Tele Vue DeLite 9mm is optimized for resolving fine details in lunar craters or planetary atmospheric bands. In a standard 8-inch f\/10 Schmidt-Cassegrain, this eyepiece produces 222x magnification with a 0.9mm exit pupil, a combination that favors high-resolution study while preserving background sky darkness. The 62° apparent field provides a 25% wider view than a standard Plössl, allowing for longer tracking times in non-motorized telescopes.\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\u003c\/h3\u003e\n          \u003cp\u003eObservers often evaluate the Tele Vue DeLite 9mm against shorter focal length designs based on eye relief and mechanical footprint.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003evs. 9mm Nagler Type 6:\u003c\/strong\u003e The Nagler offers an 82° field but restricts eye relief to 12mm; the DeLite 9mm provides 20mm of eye relief for superior comfort for eyeglass wearers.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003evs. 10mm Delos:\u003c\/strong\u003e While the Delos offers a 72° field, the DeLite 9mm is significantly lighter and slimmer, making it more suitable for use in binoviewers or small travel refractors.\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\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the 9mm focal length in the DeLite series preferred for planetary resolution?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 9mm focal length sits at a sweet spot for many telescopes, providing high magnification that holds steady even in average atmospheric conditions. It delivers a crisp exit pupil that maximizes contrast on planetary belts and lunar shadows, making it a primary choice for discerning observers seeking fine detail.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the eye relief on the DeLite 9mm superior for comfort?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe DeLite 9mm offers a generous 20mm of eye relief, which is significantly more than traditional planetary eyepieces like Plössls or Orthoscopics. This allows observers to see the entire field of view comfortably, even while wearing thick eyeglasses, preventing the eye fatigue often associated with high-power viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 62-degree field of view improve the observing experience?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 62-degree apparent field of view is designed to be easily taken in at a single glance. This framing helps minimize distracting light scatter and allows the observer to concentrate on the target, providing a more immersive experience than narrow eyepieces without the daunting scale of ultra-wide designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the sliding eyeguard system function on the 9mm DeLite?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe eyepiece features a unique mechanical housing that allows the eyeguard to slide and lock into any position. This enables you to customize the height to match your eye's natural resting point, effectively eliminating blackouts and ensuring consistent eye positioning for every session.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the DeLite 9mm offer true color fidelity for deep-sky objects?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBeyond its planetary prowess, the DeLite 9mm is prized for its color neutrality. It does not add any warm or cool tints to the image, which is essential for observing the subtle hues of double stars and the delicate structures of small planetary nebulae or bright galaxies.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 9mm DeLite compatible with standard 1.25-inch filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the barrel of the 9mm DeLite is threaded to accept standard 1.25-inch astronomy filters. This allows for the seamless use of Moon filters, planetary color filters, or UHC filters to enhance contrast depending on your specific target.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003ctable class=\"DAV-specifications\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e9 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e10.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.5 oz (213 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eElements\/Groups\u003c\/td\u003e\n\u003ctd\u003e6\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes (Group B)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n\u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003cimg alt=\"9mm DeLite Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-9mm-Eyepiece-1.jpg?v=1776216810\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDeLite 9mm 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 alt=\"Dust Cap Top\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 alt=\"1.25-inch Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-DeLite-Manual.pdf\" target=\"_blank\"\u003e\n            \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\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\u003c\/div\u003e\n          \u003c\/a\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n          \u003cp\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51170757607709,"sku":"TV-EDE-09.0","price":427.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-9mm-Eyepiece-1.jpg?v=1776222575"},{"product_id":"tele-vue-delite-7mm-62-eyepiece","title":"Tele Vue DeLite 7mm 62° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e7mm Focal Length\u003c\/li\u003e\n  \u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n  \u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n  \u003cli\u003e20mm Eye Relief\u003c\/li\u003e\n  \u003cli\u003e7.9mm 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 DeLite 7mm 62° Eyepiece - 1.25\"\u003c\/h2\u003e\n          \u003cp\u003eThe Tele Vue DeLite 7mm is engineered as a compact, lightweight evolution of the Delos series, utilizing optical advancements derived from the Ethos project to achieve high-contrast performance in a 1.25-inch format. By scaling the design to a 62° apparent field, this optic maintains the pure image quality of the Delos while reducing total mass to 7.4 oz. It serves as a technically precise solution for observers requiring long eye relief and Dioptrx compatibility in a portable mechanical footprint.\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\u003e20mm Eye Relief and Adjustable Locking Eyeguard\u003c\/h3\u003e\n          \u003cp\u003eThe Tele Vue DeLite 7mm is engineered with a constant 20mm eye relief and a sliding mechanical housing to ensure consistent, comfortable eye placement for all observers. This long-relief design allows eyeglass wearers to maintain enough clearance to see the entire 62° field without contact between spectacles and the eyepiece. By locking the eyeguard at the specific height required for your eye's anatomy, you effectively eliminate the blackouts and \"kidney-beaning\" caused by improper eye positioning.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eSliding Locking Eyeguard:\u003c\/strong\u003e Provides a physical hard-stop to secure the optimal eye point for consistent viewing sessions.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e Integrates directly with Tele Vue Dioptrx lenses to resolve eyesight astigmatism while maintaining the ergonomic benefits of long eye relief.\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\u003e7.9mm Field Stop and High-Power Magnification\u003c\/h3\u003e\n          \u003cp\u003eWith a 7.9mm field stop, the Tele Vue DeLite 7mm is optimized for high-magnification observation of planetary detail, double stars, and lunar features. In an 8-inch f\/10 Schmidt-Cassegrain, this eyepiece produces 285x magnification, delivering the scale necessary to resolve the Cassini Division or rilles on the lunar surface. The 62° field format is physically smaller than the Delos or Nagler lines, facilitating easier balance on lightweight mounts and compact travel telescopes.\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\u003c\/h3\u003e\n          \u003cp\u003eObservers often evaluate the Tele Vue DeLite 7mm against wider-field designs based on weight, eye relief, and specific telescope requirements.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003evs. 7mm Nagler Type 6:\u003c\/strong\u003e The Nagler provides an 82° field but limits eye relief to 12mm, whereas the DeLite 7mm provides 20mm of eye relief for superior eyeglass compatibility.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003evs. 6mm Delos:\u003c\/strong\u003e While the Delos offers a 72° field and 20mm eye relief, the DeLite 7mm is significantly more compact and lighter, improving balance on smaller tracking mounts.\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\"\u003eDoes the Tele Vue 7mm DeLite provide enough eye relief for eyeglasses?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the \u003cstrong\u003eTele Vue 7mm DeLite\u003c\/strong\u003e features a constant \u003cstrong\u003e20mm eye relief\u003c\/strong\u003e, which is specifically designed to allow spectacle wearers to see the entire 62° apparent field without removing their glasses. The adjustable sliding eyeguard allows users to lock in the exact height needed to eliminate blackouts caused by improper eye positioning.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Tele Vue 7mm DeLite compare to the 7mm Nagler Type 6?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eTele Vue 7mm DeLite\u003c\/strong\u003e prioritizes eye relief (20mm) and absolute on-axis contrast over the wider 82° field of the Nagler. While the Nagler offers a more immersive \"spacewalk\" feel, the DeLite’s \u003cstrong\u003e62° field\u003c\/strong\u003e and simpler lens geometry often result in better scatter control for planetary observers and those using eyeglass correction.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Tele Vue 7mm DeLite suitable for planetary viewing in an f\/10 SCT?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIn a standard 8-inch f\/10 Schmidt-Cassegrain, the \u003cstrong\u003eTele Vue 7mm DeLite\u003c\/strong\u003e yields 285x magnification and a \u003cstrong\u003e0.7mm exit pupil\u003c\/strong\u003e. This configuration is highly effective for resolving detail on \u003cstrong\u003eJupiter\u003c\/strong\u003e or \u003cstrong\u003eSaturn\u003c\/strong\u003e during nights of steady atmospheric seeing, though it may be too high for frequent use under turbulent conditions.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan the Tele Vue 7mm DeLite be used for bino-viewing?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eTele Vue 7mm DeLite\u003c\/strong\u003e is an industry-standard choice for binoviewers due to its \u003cstrong\u003eslim 1.9-inch housing diameter\u003c\/strong\u003e, which provides ample space for most interpupillary distances. Its light weight (7.5 oz) also helps prevent balance issues and strain on the binoviewer’s internal prisms.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Tele Vue 7mm DeLite show \"kidney-beaning\" or spherical aberration of the exit pupil?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eTele Vue 7mm DeLite\u003c\/strong\u003e is optically corrected to minimize spherical aberration of the exit pupil, significantly reducing the \"kidney-bean\" effect common in long-eye-relief eyepieces. Proper use of the \u003cstrong\u003esliding eyeguard\u003c\/strong\u003e ensures the eye remains at the correct focal point to keep the field fully illuminated.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003ctable class=\"DAV-specifications\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e7.9 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.4 oz (210 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eElements\/Groups\u003c\/td\u003e\n\u003ctd\u003e6\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes (Group B)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003cimg alt=\"7mm DeLite Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-7mm-Eyepiece-1.jpg?v=1776222706\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDeLite 7mm 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 alt=\"Dust Cap Top\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 alt=\"1.25-inch Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-DeLite-Manual.pdf?v=1776216181\" target=\"_blank\"\u003e\n            \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\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\u003c\/div\u003e\n          \u003c\/a\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n          \u003cp\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51170882650397,"sku":"TV-EDE-07.0","price":427.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-7mm-Eyepiece-1.jpg?v=1776222706"},{"product_id":"tele-vue-delite-11mm-62-eyepiece","title":"Tele Vue DeLite 11mm 62° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e11mm Focal Length\u003c\/li\u003e\n  \u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n  \u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n  \u003cli\u003e20mm Eye Relief\u003c\/li\u003e\n  \u003cli\u003e11.7mm 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 DeLite 11mm 62° Eyepiece - 1.25\"\u003c\/h2\u003e\n          \u003cp\u003eThe Tele Vue DeLite 11mm serves as a medium-magnification workhorse, designed to deliver the high-contrast performance of the Delos series in a more compact and lightweight form factor. Built on the optical heritage of the Ethos line, this 1.25-inch eyepiece provides exceptionally sharp, linear views across a 62° apparent field. It is a technically precise solution for observers who prioritize portability and long eye relief without compromising on the pure image quality required for deep-sky and planetary study.\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\u003e20mm Eye Relief and Adjustable Locking Eyeguard\u003c\/h3\u003e\n          \u003cp\u003eThe Tele Vue DeLite 11mm is engineered with a constant 20mm eye relief and a sliding mechanical housing to ensure consistent, comfortable eye placement for all observers. This long-relief design allows eyeglass wearers to maintain enough clearance to see the entire 62° field without contact between spectacles and the eyepiece. By locking the eyeguard at the specific height required for your eye's anatomy, you effectively eliminate the blackouts and \"kidney-beaning\" caused by improper eye positioning.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eSliding Locking Eyeguard:\u003c\/strong\u003e Provides a physical hard-stop to secure the optimal eye point for consistent viewing sessions.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e Integrates directly with Tele Vue Dioptrx lenses to resolve eyesight astigmatism while maintaining the ergonomic benefits of long eye relief.\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\u003e11.7mm Field Stop and Moderate Magnification\u003c\/h3\u003e\n          \u003cp\u003eWith an 11.7mm field stop, the Tele Vue DeLite 11mm is optimized for framing a variety of celestial targets, from large star clouds to intricate planetary nebulae. In an 8-inch f\/10 Schmidt-Cassegrain, this eyepiece produces 182x magnification with a 1.1mm exit pupil—a balance that provides enough power to resolve detail while maintaining a bright enough image for subtle deep-sky structures. Its 62° apparent field is designed for edge-to-edge sharpness even in fast focal ratio telescopes.\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\u003c\/h3\u003e\n          \u003cp\u003eObservers often evaluate the Tele Vue DeLite 11mm against wider-field or shorter focal length designs based on eye relief and weight.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003evs. 11mm Nagler Type 6:\u003c\/strong\u003e The Nagler offers an 82° field but reduces eye relief to 12mm; the DeLite 11mm provides a full 20mm of eye relief for superior comfort, especially for spectacle wearers.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003evs. 12mm Delos:\u003c\/strong\u003e While the Delos offers a wider 72° field, the DeLite 11mm is significantly lighter (7.1 oz vs 14.4 oz) and slimmer, making it easier to balance on lightweight mounts and ideal for binoviewing.\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\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Tele Vue DeLite 11mm compare to the Delos or Nagler?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Tele Vue DeLite 11mm offers the same high-contrast, professional-grade optics as the Delos but in a more compact, 62° apparent field. Compared to the Nagler 11mm, the DeLite provides significantly better 20mm eye relief, making it a superior choice for observers who prioritize comfort and long-session viewing over an ultra-wide field.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the DeLite 11mm good for planetary or deep-sky viewing?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe DeLite 11mm is an exceptional bridge eyepiece. Its high transmission and neutral color balance make it a favorite for lunar and planetary observing, revealing fine details on Jupiter and Saturn. Simultaneously, its 11.7mm field stop provides enough real estate to frame compact deep-sky objects like globular clusters and bright nebulae with stunning clarity.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the benefits of the DeLite sliding locking eyeguard?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe uniquely adjustable sliding eyeguard on the DeLite 11mm allows you to mechanically lock in your preferred eye position. This feature is critical for preventing blackouts and kidney-beaning, as it ensures your eye remains at the perfect distance from the lens every time you step up to the telescope.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Tele Vue Dioptrx with the DeLite 11mm?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the Tele Vue DeLite 11mm is Dioptrx-compatible. This allows users with astigmatism to attach a corrective lens directly to the eyepiece, eliminating the need for eyeglasses and providing the sharpest possible diffraction-limited views of the night sky.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Tele Vue DeLite 11mm a parfocal eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe DeLite 11mm is parfocal with most other Tele Vue 1.25\" eyepieces, including the Plössl, Panoptic, and Nagler series. This means you can switch between different focal lengths during your session with minimal refocusing required, streamlining your observation workflow.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003ctable class=\"DAV-specifications\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e11 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e11.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.1 oz (201 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eElements\/Groups\u003c\/td\u003e\n\u003ctd\u003e6\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes (Group B)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003cimg alt=\"DeLite 11mm Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-11mm-Eyepiece-1.jpg?v=1776223501\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDeLite 11mm 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 alt=\"Dust Cap Top\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 alt=\"1.25-inch Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-DeLite-Manual.pdf?v=1776216181\" target=\"_blank\"\u003e\n            \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\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\u003c\/div\u003e\n          \u003c\/a\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n          \u003cp\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51170887008541,"sku":"TV-EDE-11.0","price":427.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-11mm-Eyepiece-1.jpg?v=1776223501"},{"product_id":"tele-vue-nagler-t6-13mm-82-eyepiece","title":"Tele Vue Nagler T6 13mm 82° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e13mm Focal Length\u003c\/li\u003e\n  \u003cli\u003e82° Apparent Field of View\u003c\/li\u003e\n  \u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n  \u003cli\u003e12mm Eye Relief\u003c\/li\u003e\n  \u003cli\u003e17.6mm 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 Nagler Type 6 13mm 82° Eyepiece - 1.25\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue Nagler Type 6 13mm is often the most utilized optic in an observer's kit, providing a mid-range magnification that balances deep-sky reach with a manageable exit pupil. It serves as a practical entry point into ultra-wide-field observing for those who find 100° fields difficult to navigate or overly taxing on eye placement. In an 8-inch f\/10 SCT, this eyepiece yields 154x magnification, a versatile power for resolving globular clusters like M13 while maintaining a dark sky background.\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\u003e17.6mm Field Stop and Framing Reality\u003c\/h3\u003e\n      \u003cp\u003eThis eyepiece is sized for \"set and forget\" observing, where the 17.6mm field stop allows you to keep an object centered longer in non-tracking telescopes compared to a standard Plössl. In an f\/6 Newtonian, the resulting 2.2mm exit pupil is large enough to keep the Orion Nebula (M42) bright while the 82° field provides the physical space to see the outer dust lanes. The compact 1.25-inch form factor ensures the telescope remains balanced, avoiding the frequent re-balancing required by heavier 2-inch wide-field optics.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e82° AFOV:\u003c\/strong\u003e Delivers an immersive experience that fills the primary visual field without requiring the \"head-swivel\" movement often necessary for 100° designs.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e7-Element Optical Train:\u003c\/strong\u003e Maintains sharp star points across the field in fast f\/4.5 systems, reducing the need to swap eyepieces when moving from the center to the edge of the frame.\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\u003eOperational Comparison and Trade-offs\u003c\/h3\u003e\n      \u003cp\u003eThe Tele Vue Nagler Type 6 13mm is a specialized tool for observers who prioritize a lightweight, high-transmission path over long eye relief or extreme field width. It represents a specific mechanical choice for binoviewer users who require narrow housings to accommodate interpupillary distances.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue Delos 14mm:\u003c\/strong\u003e The Delos offers 20mm of eye relief for comfortable use with glasses, but the 13mm Nagler provides a wider field in a package half the weight.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. 13mm Plössl:\u003c\/strong\u003e While a Plössl has fewer glass elements, its 50° field physically cannot frame the full extent of the North American Nebula (NGC 7000) at this focal length.\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\"\u003eIs the Tele Vue Nagler Type 6 13mm suitable for eyeglass wearers?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWith 12mm of eye relief, the \u003cstrong\u003eTele Vue Nagler Type 6 13mm\u003c\/strong\u003e is typically used without glasses to see the full 82° field. Observers with significant astigmatism may prefer the \u003cstrong\u003eTele Vue Delos\u003c\/strong\u003e or \u003cstrong\u003eDeLite\u003c\/strong\u003e series which offer 20mm of eye relief.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy choose the 13mm Nagler for a binoviewer?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eTele Vue Nagler Type 6 13mm\u003c\/strong\u003e features a slim 1.9-inch maximum diameter, making it one of the few ultra-wide eyepieces that comfortably fits \u003cstrong\u003ebinoviewers\u003c\/strong\u003e for observers with narrow interpupillary distances. Its light weight also prevents excess strain on the binoviewer's internal prisms.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the 13mm Nagler require a coma corrector?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile the \u003cstrong\u003eTele Vue Nagler Type 6 13mm\u003c\/strong\u003e is corrected for edge-of-field aberrations, Newtonians faster than f\/5 will still show coma inherent to the telescope mirror. Using a \u003cstrong\u003eTele Vue Paracorr\u003c\/strong\u003e is recommended to achieve diffraction-limited performance across the entire 82° field.\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\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e13 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e17.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.40 lbs (6.4 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLens Elements\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eParfocal Group\u003c\/td\u003e\n\u003ctd\u003eGroup B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003cimg alt=\"Nagler 13mm Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Nagler-13mm-Eyepiece-1.jpg?v=1776224242\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eNagler 13mm Type 6 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 alt=\"Dust Cap Top\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 alt=\"1.25-inch Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Nagler-T6-13mm-82-Eyepiece-Manual.pdf?v=1776224731\" target=\"_blank\"\u003e\n            \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\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\u003c\/div\u003e\n          \u003c\/a\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n          \u003cp\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51170897920285,"sku":"TV-EN6-13.0","price":533.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Nagler-13mm-Eyepiece-1.jpg?v=1776225124"},{"product_id":"tele-vue-delite-5mm-62-eyepiece","title":"Tele Vue DeLite 5mm 62° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e5mm Focal Length\u003c\/li\u003e\n  \u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n  \u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n  \u003cli\u003e20mm Eye Relief\u003c\/li\u003e\n  \u003cli\u003e5.3mm 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 DeLite 5mm 62° Eyepiece - 1.25\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue DeLite 5mm 62° Eyepiece is engineered as a compact, high-contrast alternative to the Delos series, optimized for high-magnification lunar and planetary observation. It utilizes advanced glass types and multi-coatings to maintain a neutral color balance and minimize light scatter on bright targets. By constraining the apparent field to 62°, the design reduces the risk of spherical aberration of the exit pupil (SAEP), improving eye placement stability compared to wider-angle optics.\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\u003e20mm Eye Relief and Mechanical Integration\u003c\/h3\u003e\n      \u003cp\u003eThe 20mm eye relief and sliding, locking eyeguard facilitate precise eye positioning for both eyeglass wearers and those without. This mechanical system allows the observer to lock the eyeguard at the exact height required to eliminate blackouts while shielding against stray light.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e The 1.25-inch barrel and top housing are designed to accept the Tele Vue Dioptrx astigmatism corrector, allowing observers to bypass eyeglasses for maximum visual acuity.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParfocal Group B:\u003c\/strong\u003e This 5mm focal length is parfocal with Tele Vue 1.25-inch Plössls and Panoptics, reducing the need for refocusing when swapping focal lengths.\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\u003eHigh-Power Performance in f\/5 to f\/10 Systems\u003c\/h3\u003e\n      \u003cp\u003eIn an 8-inch f\/10 SCT, the Tele Vue DeLite 5mm produces 406× magnification, suitable for resolving fine craterlet detail in Clavius or the Cassini Division of Saturn during nights of stable seeing. In a 4-inch f\/7 refractor, it yields 140× with a 0.7mm exit pupil, providing sufficient image brightness for identifying the Galilean moons' transits across Jupiter.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSmall Exit Pupil Geometry:\u003c\/strong\u003e The 5mm focal length creates a 1.0mm exit pupil in an f\/5 Newtonian, a common threshold for balancing resolution and contrast on double stars like Albireo (Beta Cygni).\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\u003eOperational Comparison\u003c\/h3\u003e\n      \u003cp\u003eThe Tele Vue DeLite 5mm occupies a specific niche between the wider Delos series and traditional high-resolution monocentric or orthoscopic designs.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 5mm Delos:\u003c\/strong\u003e The DeLite is approximately 30% lighter and physically smaller, though it offers a 62° field versus the 72° field of the Delos.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 5mm Nagler Type 6:\u003c\/strong\u003e The DeLite provides significantly longer eye relief (20mm vs 12mm), which reduces eyelash oil transfer to the lens during extended high-power sessions.\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\"\u003eIs the Tele Vue DeLite 5mm compatible with Dioptrx?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eYes, the Tele Vue DeLite 5mm features a removable eyeguard that allows for the direct attachment of a Dioptrx astigmatism corrector. This is particularly beneficial for observers who require astigmatism correction but prefer to observe without wearing eyeglasses.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Tele Vue DeLite 5mm compare to the 4.5mm Delos?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe Tele Vue DeLite 5mm is significantly lighter and smaller than the 4.5mm Delos while maintaining the same 20mm eye relief. The Delos offers a wider 72° apparent field, but the DeLite is often cited as being less \"finicky\" regarding eye placement during extended planetary sessions.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Tele Vue DeLite 5mm work well for planetary viewing in a fast f\/5 telescope?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eIn an f\/5 system, the Tele Vue DeLite 5mm produces a 1.0mm exit pupil, which is a common \"sweet spot\" for balancing image brightness and magnification on planets. The eyepiece is designed to handle fast light cones, maintaining sharpness and contrast on targets like Saturn and Mars.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Tele Vue DeLite 5mm with a Barlow lens?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe Tele Vue DeLite 5mm performs predictably when paired with Tele Vue Barlows or Powermates, effectively doubling or tripling the magnification without reducing the 20mm eye relief. This is a common method to reach extremely high powers for splitting double stars like Albireo when seeing conditions allow.\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\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e5.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.5 oz (213 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eGroup B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003cimg alt=\"DeLite 5mm Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-5mm-Eyepiece-1.jpg?v=1776301479\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDeLite 5mm 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 alt=\"Dust Cap Top\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 alt=\"1.25-inch Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-DeLite-Manual.pdf?v=1776216181\" target=\"_blank\"\u003e\n            \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\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\u003c\/div\u003e\n          \u003c\/a\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n          \u003cp\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51174901842205,"sku":"TV-EDE-05.0","price":427.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-5mm-Eyepiece-1.jpg?v=1776301479"},{"product_id":"tele-vue-delite-4mm-62-eyepiece","title":"Tele Vue DeLite 4mm 62° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e4mm Focal Length\u003c\/li\u003e\n  \u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n  \u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n  \u003cli\u003e20mm Eye Relief\u003c\/li\u003e\n  \u003cli\u003e4.3mm 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 DeLite 4mm 62° Eyepiece - 1.25\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue DeLite 4mm 62° Eyepiece is a high-magnification optic designed to deliver the high-contrast performance of the Delos series in a more compact, lightweight 1.25-inch format. It is engineered to provide a 20mm eye relief while maintaining an extremely high degree of correction for lateral color and scatter. This 4mm focal length is primarily intended for critical lunar, planetary, and double-star observation in systems where high power is required without sacrificing viewing comfort.\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\u003e20mm Eye Relief and Mechanical Versatility\u003c\/h3\u003e\n      \u003cp\u003eThe consistent 20mm eye relief and sliding, locking eyeguard assembly allow observers to precisely match the exit pupil position to their eye, which is essential for avoiding blackouts at such short focal lengths. This mechanical design prevents the \"finicky\" eye placement often associated with ultra-short focal length wide-angle eyepieces.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e The 1.25-inch housing is fully compatible with the Tele Vue Dioptrx corrector, enabling users to correct for eyesight astigmatism without wearing spectacles.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLocking Eyeguard:\u003c\/strong\u003e The adjustable housing can be set and locked at a specific height, ensuring repeatable eye placement for extended sessions on objects like Mars or Jupiter.\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\u003eHigh-Magnification Utility in f\/ratio Systems\u003c\/h3\u003e\n      \u003cp\u003eIn an f\/7 refractor, the Tele Vue DeLite 4mm produces a 0.57mm exit pupil and high magnification, suitable for resolving the Rima Hadley on the Moon or the GRS on Jupiter. In an f\/10 Schmidt-Cassegrain (SCT), it yields a 0.4mm exit pupil, reaching the upper limits of useful magnification for splitting tight double stars like Beta Cygni (Albireo) under excellent atmospheric conditions.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSmall Exit Pupil Geometry:\u003c\/strong\u003e The 4mm focal length maintains a 0.8mm exit pupil in f\/5 Newtonians, providing sufficient image brightness for high-power views of the Hercules Cluster (M13).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGroup B Parfocality:\u003c\/strong\u003e This eyepiece is parfocal with Tele Vue's 1.25-inch Plössl, Panoptic, and Nagler designs, minimizing focus travel when changing magnifications.\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\u003eOperational Comparison\u003c\/h3\u003e\n      \u003cp\u003eThe Tele Vue DeLite 4mm offers a specific balance of mass, eye relief, and field size compared to other short focal length Tele Vue designs.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 4.5mm Delos:\u003c\/strong\u003e The DeLite 4mm is roughly 30% lighter and smaller, making it easier to balance on lightweight mounts, though it provides 10° less apparent field.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 3-6mm Nagler Zoom:\u003c\/strong\u003e The DeLite 4mm provides a wider 62° field (vs 50°) and significantly longer eye relief (20mm vs 10mm), allowing for more comfortable long-duration viewing.\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\"\u003eIs the Tele Vue DeLite 4mm compatible with Dioptrx?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eYes, the Tele Vue DeLite 4mm features a removable eyeguard that permits the installation of a Dioptrx corrector, allowing observers with astigmatism to see sharp detail without wearing glasses.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Tele Vue DeLite 4mm compare to the 4.5mm Delos?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe Tele Vue DeLite 4mm is more compact and weighs significantly less than the 4.5mm Delos, which is beneficial for binoviewer use. While the Delos has a 72° field, both share the same 20mm eye relief and high-contrast optical coatings.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Tele Vue DeLite 4mm work in an f\/10 SCT?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eIn an f\/10 system, the Tele Vue DeLite 4mm produces very high magnification (500x in a 2000mm FL scope) and a 0.4mm exit pupil. This is typically only useful during nights of exceptional atmospheric stability for lunar and double star work.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the field stop diameter of the Tele Vue DeLite 4mm?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe Tele Vue DeLite 4mm has a 4.3mm field stop. This determines the true field of view, which can be calculated by dividing the field stop by the telescope's focal length and multiplying by 57.3.\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\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e4.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.6 oz (215 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eGroup B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003cimg alt=\"DeLite 4mm Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-4mm-Eyepiece-1.jpg?v=1776301479\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDeLite 4mm 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 alt=\"Dust Cap Top\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 alt=\"1.25-inch Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-DeLite-Manual.pdf?v=1776216181\" target=\"_blank\"\u003e\n            \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\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\u003c\/div\u003e\n          \u003c\/a\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cp\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51174935953693,"sku":"TV-EDE-04.0","price":427.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-4mm-Eyepiece-1.jpg?v=1776303000"},{"product_id":"tele-vue-delite-3mm-62-eyepiece","title":"Tele Vue DeLite 3mm 62° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e3mm Focal Length\u003c\/li\u003e\n  \u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n  \u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n  \u003cli\u003e20mm Eye Relief\u003c\/li\u003e\n  \u003cli\u003e3.2mm 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 DeLite 3mm 62° Eyepiece - 1.25\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue DeLite 3mm 62° Eyepiece is an ultra-short focal length optic engineered for maximum magnification in telescopes with short to medium focal lengths. It maintains the 20mm eye relief consistent across the series, specifically addressing the ergonomics and eye placement difficulties typically found in 3mm wide-angle designs. By utilizing a 62° apparent field, the eyepiece minimizes spherical aberration of the exit pupil (SAEP), facilitating stable on-axis viewing of high-contrast planetary features.\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\u003e20mm Eye Relief and Mechanical Alignment\u003c\/h3\u003e\n      \u003cp\u003eThe 20mm eye relief is a critical mechanical constraint that allows for a full field of view while wearing eyeglasses, a rarity in the sub-5mm focal length class. The sliding eyeguard system locks into position to provide a physical reference for the eye, reducing the sensitivity to side-to-side head movement that can cause blackouts at small exit pupils.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDioptrx Integration:\u003c\/strong\u003e The top housing accepts the Tele Vue Dioptrx corrector, enabling observers to correct for eyesight astigmatism directly within the optical train.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCompact Mass:\u003c\/strong\u003e At 7.8 ounces, the 3mm DeLite prevents the balance issues common when using larger, multi-element ultra-wide eyepieces on lightweight refractor mounts.\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\u003eExtreme Magnification and Exit Pupil Constraints\u003c\/h3\u003e\n      \u003cp\u003eIn an f\/7 apochromatic refractor, the 3mm focal length yields a 0.43mm exit pupil, providing high-power views for splitting tight double stars or observing small planetary nebulae. In an f\/10 Schmidt-Cassegrain (SCT), it produces 666× magnification and a 0.3mm exit pupil, which typically exceeds atmospheric seeing limits but remains a viable tool for diffraction-limited testing in superior conditions.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSmall Exit Pupil Behavior:\u003c\/strong\u003e Observers may notice eye floaters more prominently due to the 0.6mm or smaller exit pupil produced in telescopes faster than f\/5.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParfocality:\u003c\/strong\u003e This 3mm model is parfocal with Group B Tele Vue 1.25\" eyepieces, including the Plössl and Panoptic series.\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\u003eOperational Comparison\u003c\/h3\u003e\n      \u003cp\u003eThe Tele Vue DeLite 3mm serves as a high-resolution specialist compared to wider-field or zoom-based alternatives.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 3-6mm Nagler Zoom:\u003c\/strong\u003e The DeLite 3mm offers a wider 62° field (compared to 50°) and twice the eye relief (20mm vs 10mm), though it lacks the focal length flexibility of the zoom.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. 3.5mm Delos:\u003c\/strong\u003e The DeLite is significantly smaller and lighter, making it preferable for travel or binoviewing, while the Delos provides a wider 72° field.\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\"\u003eIs the Tele Vue DeLite 3mm suitable for planetary viewing?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe Tele Vue DeLite 3mm is designed for very high magnification on planets, though its performance depends on atmospheric seeing; it produces a 0.6mm exit pupil in an f\/5 system, which is ideal for resolving fine planetary bands on Jupiter.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Tele Vue DeLite 3mm work with Dioptrx?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe Tele Vue DeLite 3mm is fully compatible with the Dioptrx astigmatism corrector, which replaces the need for eyeglasses by attaching directly to the eyepiece housing.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eIs eye placement sensitive on the Tele Vue DeLite 3mm?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eDue to the small exit pupil, eye placement is more critical than with longer focal lengths; however, the Tele Vue DeLite 3mm uses an adjustable, locking eyeguard to help the observer maintain the correct distance and alignment.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Tele Vue DeLite 3mm compare to a Barlowed eyepiece?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eWhile a longer DeLite paired with a Tele Vue Barlow can achieve similar magnifications, the Tele Vue DeLite 3mm is a dedicated single-eyepiece solution that reduces the number of air-to-glass surfaces and minimizes the weight of the focuser assembly.\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\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e3.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.8 oz (221 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eGroup B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003cimg alt=\"DeLite 3mm Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-3mm-Eyepiece-1.jpg?v=1776301479\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDeLite 3mm 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 alt=\"Dust Cap Top\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 alt=\"1.25-inch Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-DeLite-Manual.pdf?v=1776216181\" target=\"_blank\"\u003e\n            \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\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\u003c\/div\u003e\n          \u003c\/a\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cp\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51174962463005,"sku":"TV-EDE-03.0","price":427.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-3mm-Eyepiece-1.jpg?v=1776303403"},{"product_id":"tele-vue-delite-18-2mm-62-eyepiece","title":"Tele Vue DeLite 18.2mm 62° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e18.2mm Focal Length\u003c\/li\u003e\n  \u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n  \u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n  \u003cli\u003e20mm Eye Relief\u003c\/li\u003e\n  \u003cli\u003e19.1mm 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 DeLite 18.2mm 62° Eyepiece - 1.25\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue DeLite 18.2mm is a medium-focal length optic engineered for high-contrast deep-sky and lunar observation, utilizing high-index glass to achieve a flat field from center to edge. It serves as a lightweight, 1.25-inch alternative to larger wide-angle designs, emphasizing internal light scatter suppression and color neutrality. In f\/5 to f\/10 systems, it maintains sharp star images across the entire 62° field, effectively managing field curvature and lateral color without requiring the excessive mass of 2-inch wide-field eyepieces.\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\u003e20mm Eye Relief and Mechanical Integration\u003c\/h3\u003e\n      \u003cp\u003eThe mechanical housing includes a sliding, locking eyeguard that provides 20mm of eye relief, ensuring comfortable use for observers with or without eyeglasses. This consistent eye relief prevents the \"peeping\" effect common in shorter-relief orthoscopic designs, while the locking mechanism allows for repeatable eye placement and shielding from stray light.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e The 18.2mm housing accepts the Tele Vue Dioptrx astigmatism corrector, allowing for sharp on-axis views without the use of spectacles.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBinoviewer Utility:\u003c\/strong\u003e A 1.1-inch barrel diameter and 7.6-ounce mass make this focal length suitable for binoviewer pairs, where interpupillary distance and balance are critical constraints.\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\u003ePerformance in Refractor and Newtonian Systems\u003c\/h3\u003e\n      \u003cp\u003eIn a 4-inch f\/7 APO refractor, the DeLite 18.2mm yields approximately 39× magnification with a 4.7mm exit pupil, providing sufficient brightness to frame the Orion Nebula (M42) while maintaining pinpoint stars to the field stop. In f\/5 Newtonians, the 62° apparent field limits the visibility of native mirror coma, often producing cleaner edges than 70°+ eyepieces of similar focal length used without a coma corrector.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e19.1mm Field Stop:\u003c\/strong\u003e This physical aperture maximizes the true field of view in the 1.25-inch format while preventing vignetting in short-focal ratio telescopes.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGroup B Parfocality:\u003c\/strong\u003e This eyepiece is parfocal with Tele Vue 1.25\" Plössl, Panoptic, and Nagler models, reducing the focus travel required during eyepiece swaps.\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\u003eOperational Comparison\u003c\/h3\u003e\n      \u003cp\u003eThe Tele Vue DeLite 18.2mm offers a distinct trade-off between apparent field width and exit pupil comfort compared to adjacent focal lengths.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 19mm Panoptic:\u003c\/strong\u003e The DeLite provides significantly longer eye relief (20mm vs 13mm) and tends to show better edge-of-field contrast, though it yields a smaller apparent field (62° vs 68°).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 17.3mm Delos:\u003c\/strong\u003e The DeLite is approximately 40% lighter and physically smaller, making it easier to manage on small mounts or in binoviewers, despite the narrower field of view.\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\"\u003eIs the Tele Vue DeLite 18.2mm compatible with Dioptrx?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe Tele Vue DeLite 18.2mm features a removable eyeguard that reveals threads for the Tele Vue Dioptrx corrector, allowing observers with astigmatism to achieve sharp views without wearing eyeglasses.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Tele Vue DeLite 18.2mm perform in fast f\/5 telescopes?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe 18.2mm DeLite maintains a sharp, flat field to the edge in f\/5 systems; the 62° field limits the visibility of telescope-induced coma compared to wider 82° designs.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Tele Vue DeLite 18.2mm suitable for binoviewers?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eYes, its slim profile and 7.6-ounce weight make the 18.2mm DeLite an ideal choice for binoviewing, providing a comfortable 20mm of eye relief for both eyes.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Tele Vue DeLite 18.2mm compare to the 19mm Panoptic?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe 18.2mm DeLite offers superior eye relief (20mm vs 13mm) and is more comfortable for eyeglass wearers, though it has a slightly smaller apparent field than the 19mm Panoptic.\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\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e18.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e19.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.6 oz (215 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eGroup B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003cimg alt=\"DeLite 18.2mm Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-18_2mm-Eyepiece-1.jpg?v=1776303748\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDeLite 18.2mm 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 alt=\"Dust Cap Top\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 alt=\"1.25-inch Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-DeLite-Manual.pdf?v=1776216181\" target=\"_blank\"\u003e\n            \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\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\u003c\/div\u003e\n          \u003c\/a\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cp\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51174966853917,"sku":"TV-EDE-18.2","price":427.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-18_2mm-Eyepiece-1.jpg?v=1776303748"},{"product_id":"tele-vue-delite-15mm-62-eyepiece","title":"Tele Vue DeLite 15mm 62° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e15mm Focal Length\u003c\/li\u003e\n  \u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n  \u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n  \u003cli\u003e20mm Eye Relief\u003c\/li\u003e\n  \u003cli\u003e16.0mm 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 DeLite 15mm 62° Eyepiece - 1.25\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue DeLite 15mm is a medium-power focal length designed to provide the high-contrast performance of the Delos series in a significantly smaller and lighter mechanical housing. It utilizes specialized glass types and multi-coatings to achieve neutral color rendition and minimize internal reflections on bright celestial targets. In telescopes ranging from f\/5 to f\/10, it serves as a versatile optic for deep-sky surveying and moderate-power lunar study, maintaining a flat field across its 62° apparent field of view.\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\u003e20mm Eye Relief and Ergonomic Eye Placement\u003c\/h3\u003e\n      \u003cp\u003eThe mechanical assembly features a sliding, locking eyeguard that maintains a constant 20mm eye relief, which is a critical constraint for observers who wear eyeglasses to correct for astigmatism. This system allow the observer to lock the eyeguard at a precise height to physically block stray light and eliminate the \"blackouts\" common in shorter-relief wide-angle designs.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDioptrx Compatibility:\u003c\/strong\u003e The 15mm DeLite top housing is designed to accept the Dioptrx corrector, allowing users to bypass spectacles for a more immersive and sharp visual experience.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBinoviewer Utility:\u003c\/strong\u003e At 7.5 ounces (213g) and with a narrow upper body, this focal length is well-suited for binoviewer pairs, where weight and interpupillary clearance are primary considerations.\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\u003eApplication in Varied Focal Ratio Systems\u003c\/h3\u003e\n      \u003cp\u003eIn a 4-inch f\/7 APO refractor, the Tele Vue DeLite 15mm produces 47× magnification and a 3.2mm exit pupil, providing sufficient contrast to resolve the core of the Hercules Cluster (M13). In an 8-inch f\/10 Schmidt-Cassegrain, it yields 133×, a power often used for identifying the Galilean moon transits across Jupiter under average seeing conditions.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e16.0mm Field Stop:\u003c\/strong\u003e This physical aperture produces a true field of view that frames large deep-sky objects like the Orion Nebula (M42) while maintaining high star-to-background contrast.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParfocal Group B:\u003c\/strong\u003e The 1.25-inch barrel is parfocal with Tele Vue Plössl, Panoptic, and Nagler 1.25\" eyepieces, reducing the need for refocusing when changing magnifications.\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\u003eOperational Comparison\u003c\/h3\u003e\n      \u003cp\u003eThe Tele Vue DeLite 15mm occupies a position between larger 72° designs and narrower 50° high-resolution designs.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 14mm Delos:\u003c\/strong\u003e The DeLite 15mm is approximately 50% lighter and physically smaller, making it easier to balance on small mounts, though it yields a narrower apparent field (62° vs 72°).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 15mm Panoptic:\u003c\/strong\u003e The DeLite provides significantly longer eye relief (20mm vs 10mm) and an adjustable eyeguard, offering a more comfortable experience for those who wear glasses.\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\"\u003eIs the Tele Vue DeLite 15mm compatible with Dioptrx?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eYes, the Tele Vue DeLite 15mm features a removable eyeguard that reveals threads for the Tele Vue Dioptrx astigmatism corrector, allowing for sharp views without wearing eyeglasses.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow many elements are in the Tele Vue DeLite 15mm?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eWhile Tele Vue does not disclose exact element counts for every focal length, the DeLite series typically utilizes a 6-element optical design optimized for 20mm eye relief and high contrast.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Tele Vue DeLite 15mm good for planetary viewing?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe Tele Vue DeLite 15mm is a medium-power eyepiece that provides excellent contrast for planetary work; in many telescopes, it is often paired with a Barlow or Powermate to reach higher magnifications while retaining its 20mm eye relief.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Tele Vue DeLite 15mm work well in binoviewers?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe slim profile and 7.5-ounce weight of the Tele Vue DeLite 15mm make it a preferred choice for binoviewing, as it fits comfortably between the eyes and maintains mount balance.\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\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e15.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e16.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.5 oz (213 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eGroup B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003cimg alt=\"DeLite 15mm Eyepiece\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-15mm-Eyepiece-1.jpg?v=1776301479\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDeLite 15mm 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 alt=\"Dust Cap Top\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-2inch-Dustcap.jpg?v=1774403118\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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 alt=\"1.25-inch Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" class=\"DAV-img-box\"\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cdiv\u003e\n      \u003cul class=\"DAV-grid\"\u003e\n        \u003cli class=\"DAV-grid-item\"\u003e\n          \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-DeLite-Manual.pdf?v=1776216181\" target=\"_blank\"\u003e\n            \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\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\u003c\/div\u003e\n          \u003c\/a\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cp\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51174970491165,"sku":"TV-EDE-15.0","price":427.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delite-15mm-Eyepiece-1.jpg?v=1776304138"},{"product_id":"tele-vue-panoptic-41mm-68-eyepiece","title":"Tele Vue Panoptic 41mm 68° Eyepiece - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e41mm 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\u003e27mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e46mm 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 41mm 68° Eyepiece - 2\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue Panoptic 41mm represents the physical limit of the 2-inch barrel format, delivering a massive 46mm field stop for expansive, low-power vistas. Designed for long-focal length instruments, it frames entire star complexes like the North American Nebula (NGC 7000) with a dark sky background and high image contrast. This six-element optic balances a wide 68° field with long eye relief, making it the primary choice for deep-sky scanning and large-scale celestial framing.\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\u003e46mm Field Stop and Wide-Field Navigation\u003c\/h3\u003e\n      \u003cp\u003eBy utilizing every millimeter of the 2-inch barrel's inner diameter, this eyepiece provides the maximum possible true field of view before vignetting occurs. In a 2000mm focal length SCT, it produces 49x magnification and a 1.3° field, allowing the Hercules Cluster (M13) to be centered with significant surrounding context for a balanced, natural perspective. The optical geometry is calculated to maintain pinpoint stars across the entire 68° span, preventing the edge-of-field astigmatism common in simpler wide-angle designs.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAstigmatism Control:\u003c\/strong\u003e The sophisticated lens grouping tends to flatten the field in f\/7 and slower refractors, ensuring stars do not \"smear\" near the field stop.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e27mm Eye Relief:\u003c\/strong\u003e This generous distance allows observers to see the entire field stop comfortably while wearing eyeglasses, avoiding the need to \"peek\" around the edges.\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\u003eThe 41mm Panoptic features a scalloped rubber grip that remains secure even with gloves, making it easy to handle during cold observing sessions. The adjustable screw-type eyeguard allows you to set a fixed eye position, effectively locking in the full 27mm eye relief and eliminating guesswork. Its solid, well-balanced housing provides confidence when swapping eyepieces, especially on heavier 2-inch diagonals where stability matters.\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 Balance\u003c\/h3\u003e\n      \u003cp\u003eThe 41mm Panoptic is often compared to higher-magnification wide-fields or longer-focal length Plössls, each presenting specific mechanical trade-offs.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 31mm Nagler:\u003c\/strong\u003e While the 31mm offers an 82° field, the 41mm Panoptic weighs only 2.1 lbs, reducing the need for re-balancing counterweights on smaller EQ mounts when switching eyepieces.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 55mm Plössl:\u003c\/strong\u003e Both capture the same 46mm true field, but the 41mm Panoptic increases magnification by 34%, which darkens the sky background to reveal fainter nebulosity in light-polluted areas.\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 41mm work with my f\/4.5 Newtonian?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIn an f\/4.5 system, the 41mm Panoptic produces a 9.1mm exit pupil, which likely exceeds the observer's pupil diameter and results in wasted light; furthermore, the secondary mirror shadow may become visible as a dark spot in the center of the field.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I wear eyeglasses while using the Tele Vue Panoptic 41mm?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the 27mm eye relief is ample for observers wearing thick glasses to correct for astigmatism, and the adjustable rubber eyeguard can be positioned to maintain the correct eye distance.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I prevent blackouts or kidney-beaning with this eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe long eye relief of the Tele Vue Panoptic 41mm requires precise eye positioning; using the adjustable eyeguard or a Tele Vue Eyeguard Extender helps lock in the optimal head position for a stable view.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Tele Vue Panoptic 41mm show more sky than the 55mm Plössl?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, both eyepieces share the same 46mm field stop, which is the physical limit of the 2-inch barrel format, meaning they capture the same true field of view despite different magnifications.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Tele Vue Panoptic 41mm compatible with Dioptrx?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, like most long eye relief Tele Vue eyepieces, the 41mm Panoptic is compatible with Dioptrx astigmatism correctors, allowing for sharp views without wearing eyeglasses.\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-41.0\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e41 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\u003e27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e46 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e33.1 oz (2.07 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-41mm-Eyepiece-1.jpg?v=1776304716\" alt=\"Tele Vue Panoptic 41mm Eyepiece\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e41mm 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-41mm-Panoptic-Eyepiece-Manual.pdf?v=1776305956\" 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":51174980845853,"sku":"TV-EPN-41.0","price":915.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Panoptic-41mm-Eyepiece-1.jpg?v=1776304716"},{"product_id":"tele-vue-panoptic-35mm-68-eyepiece","title":"Tele Vue Panoptic 35mm 68° Eyepiece - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e35mm 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\u003e24mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e38.7mm 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 35mm 68° Eyepiece - 2\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue Panoptic 35mm is a high-contrast wide-field optic designed to provide a large true field of view while maintaining a manageable exit pupil in faster telescope systems. Utilizing a six-element configuration, it offers a 68° apparent field that remains sharp to the edge even in f\/5 Newtonians. It is a preferred choice for observers seeking a primary low-power eyepiece that balances immersive framing with the ability to darken sky backgrounds more effectively than 40mm+ alternatives.\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\u003e38.7mm Field Stop and Framing Deep-Sky Targets\u003c\/h3\u003e\n      \u003cp\u003eWith a 38.7mm physical field stop, the 35mm Panoptic captures expansive celestial structures such as the Andromeda Galaxy (M31) or the Double Cluster in Perseus (NGC 869\/884). In a 1200mm focal length telescope, it yields 34x magnification and a 1.9° true field, providing sufficient context to view the Hercules Cluster (M13) alongside its surrounding star field. The optical design prioritizes a flat field, minimizing the pincushion distortion often found in wide-angle eyepieces of this focal length.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAstigmatism Control:\u003c\/strong\u003e The internal lens geometry is optimized to maintain point-like star images across the 68° field in f\/4.5 to f\/6 systems.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e24mm Eye Relief:\u003c\/strong\u003e This generous distance allows the full apparent field to be visible for those wearing eyeglasses, reducing the need to remove corrective lenses during observation.\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\u003eThe 35mm Panoptic features a scalloped rubber grip ring that ensures secure handling, especially when wearing gloves in cold environments. It includes an adjustable, fold-down rubber eyeguard that helps block peripheral light and provides a stable reference point for eye placement. The 1.6-lb housing is robust yet lighter than ultra-wide alternatives, making it easier to balance on a variety of telescope mounts without frequent adjustment of counterweights.\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 Choice\u003c\/h3\u003e\n      \u003cp\u003eSelecting the 35mm Panoptic involves weighing exit pupil size and magnification against the mechanical limits of the 2-inch format.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 41mm Panoptic:\u003c\/strong\u003e The 35mm provides 17% higher magnification, which results in a darker sky background and a 7.7mm exit pupil in f\/4.5 systems—closer to the human eye's maximum dilation than the 9.1mm of the 41mm.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 27mm Panoptic:\u003c\/strong\u003e While the 27mm is more compact, the 35mm offers a 27% larger field stop, capturing significantly more true field for large-scale nebula scanning.\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 35mm show a secondary mirror shadow in my Newtonian?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIn very fast systems (f\/4 or below), the 7.7mm exit pupil may exceed your eye's dilation, potentially making the secondary mirror shadow visible as a dark spot. This is most common during daytime use or when observing bright targets like the Moon in fast telescopes.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Tele Vue Panoptic 35mm with a Tele Vue Paracorr?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the 35mm Panoptic is fully compatible with the Tele Vue Paracorr Type 2, which corrects coma in fast Newtonians (f\/3 to f\/5). This combination provides sharp star images from the center to the very edge of the 68° apparent field.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Tele Vue Panoptic 35mm compatible with Dioptrx?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the 35mm Panoptic is designed to accept Dioptrx astigmatism correctors on the top of the eyepiece, allowing you to observe without eyeglasses 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 Tele Vue Panoptic 35mm perform on an 8-inch SCT?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eOn an 8\" f\/10 Schmidt-Cassegrain, it produces 57x magnification and a 3.5mm exit pupil, providing a 1.1° true field. This is an ideal low-power setting that maintains high contrast against the sky background while framing objects like the Pleiades (M45).\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the field stop smaller than the 41mm Panoptic?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe 38.7mm field stop is a result of the 35mm focal length and 68° apparent field design; the 41mm Panoptic utilizes the maximum 46mm limit of the 2-inch barrel to achieve an even wider true field at lower magnification.\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-35.0\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e35 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\u003e24 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e38.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e25.6 oz (1.6 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-35mm-Eyepiece-1.jpg?v=1776305675\" alt=\"Tele Vue Panoptic 35mm Eyepiece\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e35mm 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-35mm-Panoptic-Eyepiece-Manual.pdf?v=1776305956\" 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":51175027081501,"sku":"TV-EPN-35.0","price":679.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Panoptic-35mm-Eyepiece-1.jpg?v=1776305675"},{"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":604.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Panoptic-27mm-Eyepiece-1.jpg?v=1776306133"},{"product_id":"tele-vue-panoptic-24mm-68-eyepiece","title":"Tele Vue Panoptic 24mm 68° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e24mm Focal Length\u003c\/li\u003e\n\u003cli\u003e68° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e15mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e27mm 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 24mm 68° Eyepiece - 1.25\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue Panoptic 24mm is engineered to push the 1.25-inch barrel format to its absolute physical limit. By utilizing a 27mm field stop—the largest possible for this diameter—it delivers the widest true field of view available in a standard small-format eyepiece. It is the definitive choice for observers who want to maximize their telescope's framing capability without moving to 2-inch accessories, providing immersive, high-contrast vistas of large celestial structures like the Pleiades (M45) or the Beehive Cluster (M44).\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\u003eMaximum Field Performance for 1.25\" Systems\u003c\/h3\u003e\n      \u003cp\u003eThe 24mm Panoptic provides the same true field of view as a 32mm Plössl, but at 33% higher magnification. This increase in power darkens the sky background, making faint nebulosity and distant galaxies easier to detect against suburban light pollution. Its six-element optical design ensures that the expansive 68° apparent field remains tack-sharp from center to edge, even when used in fast f\/5 refractors or Newtonians where lesser wide-angle designs often suffer from astigmatism.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEdge-to-Edge Sharpness:\u003c\/strong\u003e Optimized lens coatings and blackened edges eliminate internal reflections, maintaining pinpoint star images across the entire field.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBinoviewer Ideal:\u003c\/strong\u003e The lightweight, slim profile and 15mm eye relief make it the industry standard for binoviewing, offering a natural and comfortable dual-eye perspective.\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 only 0.5 lbs, the 24mm Panoptic is remarkably compact, ensuring it won't upset the balance of lightweight telescopes or small travel refractors. It features a tapered top that facilitates easy access for observers, and a scalloped rubber grip ring for secure handling in the dark. The fold-down rubber eyeguard effectively blocks stray light and assists in maintaining a stable eye position, which is critical for preventing blackouts during long deep-sky scanning 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 Efficiency\u003c\/h3\u003e\n      \u003cp\u003eThe 24mm Panoptic is the primary choice for observers looking for a \"finder\" eyepiece in a 1.25-inch format while maintaining premium performance.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 32mm Plössl:\u003c\/strong\u003e Both show the same amount of sky, but the 24mm Panoptic offers higher magnification and a wider 68° apparent field, resulting in a significantly more immersive experience.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 19mm Panoptic:\u003c\/strong\u003e While the 19mm is even more compact, the 24mm captures 26% more true field, making it the better choice for framing extended nebulae or the full lunar disk.\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 24mm show more sky than my 32mm Plössl?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eTechnically, no. Both eyepieces share the same 27mm field stop, which is the limit of the 1.25-inch barrel. However, the 24mm Panoptic provides a more immersive 68-degree view and higher magnification which makes the image appear larger and the sky background darker.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 24mm Panoptic suitable for use in binoviewers?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, it is widely considered the best 1.25-inch eyepiece for binoviewing. Its light weight (8.2 oz) and tapered top allow it to fit comfortably between the eyes without causing balance issues or mechanical interference.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Tele Vue Panoptic 24mm with eyeglasses?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWith 15mm of eye relief, most eyeglass wearers can see the entire field comfortably by folding down the rubber eyeguard. However, those with very thick lenses may need to remove their glasses for the most immersive view.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the 24mm Panoptic work with Dioptrx?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, like most of the Panoptic line, this eyepiece is compatible with Tele Vue Dioptrx astigmatism correctors, allowing you to observe without eyeglasses while maintaining sharp focus.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill it work in a fast f\/4.5 telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. The Panoptic series is specifically designed to maintain sharp star images to the very edge of the field in telescopes as fast as f\/4, making it a favorite for owners of large, fast Dobsonians.\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\u003eEPN-24.0\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e24 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\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\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e8.2 oz (0.51 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-24mm-Eyepiece-1.jpg?v=1776306570\" alt=\"Tele Vue Panoptic 24mm Eyepiece\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e24mm 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?v=1774403118\" alt=\"Tele Vue Dust Cap (top)\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" alt=\"Tele Vue 1.25-inch Dust Cap\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\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-24mm-Panoptic-Eyepiece-Manual.pdf?v=1776306645\" 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":51175040581917,"sku":"TV-EPN-24.0","price":558.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Panoptic-24mm-Eyepiece-1.jpg?v=1776306570"},{"product_id":"tele-vue-panoptic-19mm-68-eyepiece","title":"Tele Vue Panoptic 19mm 68° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e19mm Focal Length\u003c\/li\u003e\n\u003cli\u003e68° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e10mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e21.3mm 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 19mm 68° Eyepiece - 1.25\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue Panoptic 19mm is a compact, high-performance wide-field optic designed to provide a mid-range magnification \"sweet spot\" in almost any telescope. Utilizing a six-element design, it offers the hallmark 68° apparent field of the Panoptic series with exceptional edge-to-edge sharpness. It is particularly valued by observers as a high-contrast deep-sky eyepiece that excels at resolving globular clusters and planetary nebulae while maintaining a manageable 1.25-inch form factor.\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\u003eOptimized Contrast and Field Control\u003c\/h3\u003e\n      \u003cp\u003eWith a 21.3mm field stop, the 19mm Panoptic delivers a balanced perspective that frames mid-sized celestial targets like the Ring Nebula (M57) or the Dumbbell Nebula (M27) with high image scale. Its optical geometry is calculated to eliminate the astigmatism and field curvature common in simpler wide-angle designs, ensuring star points remain tiny and round even at the very edge of the field. The use of high-index glass and multi-coatings results in transmission rates that rival much simpler eyepiece designs.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eChromatic Aberration Control:\u003c\/strong\u003e The sophisticated internal baffles and blackened lens edges work together to suppress stray light and maintain true color fidelity.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCompact Versatility:\u003c\/strong\u003e At only 0.4 lbs, it is small enough to be used in pairs for binoviewing or as a travel-friendly companion for small refractors.\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\u003eThe 19mm Panoptic features a scalloped rubber grip ring that remains easy to manipulate in the dark or when wearing gloves. Its slim, tapered top is specifically designed to accommodate the narrow interpupillary distances often required for binoviewer use. The adjustable, fold-down rubber eyeguard helps block peripheral light interference and provides a tactile guide for maintaining the optimal eye position, which is essential for consistent, high-contrast viewing 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 Tactical Use\u003c\/h3\u003e\n      \u003cp\u003eThe 19mm Panoptic is often compared to higher-power Naglers or longer-focal length Panoptics to fill specific magnification gaps.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 24mm Panoptic:\u003c\/strong\u003e The 19mm offers 26% higher magnification, which darkens the sky background significantly more, making it more effective for viewing faint galaxies in moderately light-polluted skies.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 16mm Nagler:\u003c\/strong\u003e While the Nagler offers a wider 82° field, the 19mm Panoptic provides a more relaxed and \"easy\" viewing experience with a larger exit pupil for those who find ultra-wide fields too demanding.\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 19mm work with my fast f\/4 telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the Panoptic series is specifically corrected for fast focal ratios. It will maintain sharp star images right to the edge of the 68-degree field, unlike many budget wide-angle eyepieces that suffer from edge-of-field astigmatism in fast optics.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 19mm Panoptic good for binoviewing?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt is one of the most popular choices for binoviewer users. Its slim profile, lightweight design, and parfocal nature with other Tele Vue 1.25-inch eyepieces make it easy to merge images and balance the telescope.\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 19mm?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe 10mm eye relief is relatively tight for eyeglass wearers. While you can see the center of the field with glasses on, you may need to remove them or fold down the eyeguard to see the full 68-degree apparent field of view.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the 19mm Panoptic require a coma corrector in a Newtonian?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile the eyepiece itself is well-corrected, any fast Newtonian (f\/5 or faster) will have inherent coma. For the absolute sharpest views across the entire field, using a Tele Vue Paracorr is recommended.\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\u003eThe 19mm Panoptic is compatible with Dioptrx astigmatism correctors, but because of the 10mm eye relief, the Dioptrx may slightly reduce the visible field for some users compared to using the eyepiece without it.\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-19.0\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e19 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\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\u003e10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e21.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e6.6 oz (0.41 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-19mm-Eyepiece-1.jpg?v=1776307022\" alt=\"Tele Vue Panoptic 19mm Eyepiece\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e19mm 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?v=1774403118\" alt=\"Tele Vue Dust Cap (top)\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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\/Tele-Vue-Dust-Cap-1-25inch-Bottom.jpg?v=1776216395\" alt=\"Tele Vue 1.25-inch Dust Cap\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\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-19mm-Panoptic-Eyepiece-Manual.pdf?v=1776307317\" 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":51175055950109,"sku":"TV-EPN-19.0","price":436.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Panoptic-19mm-Eyepiece-1.jpg?v=1776307022"},{"product_id":"tele-vue-delos-24mm-72-eyepiece","title":"Tele Vue Delos 24mm 72° Eyepiece - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e24mm Focal Length\u003c\/li\u003e\n\u003cli\u003e72° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e20mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e28.5mm 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 24mm Delos Eyepiece - 2\"\u003c\/h2\u003e\n      \u003cp\u003eThe Tele Vue 24mm Delos is a high-contrast, mid-power optic designed to deliver a 72° apparent field of view with a constant 20mm of eye relief. Unlike most of the Delos line, this specific focal length utilizes a 2-inch barrel format to accommodate its internal lens geometry while maintaining mechanical stability. In an f\/8 refractor, it produces a 3mm exit pupil, providing a balanced background for observing deep-sky targets like the Hercules Cluster (M13).\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\u003eOptical Fidelity and Field Correction\u003c\/h3\u003e\n      \u003cp\u003eBy employing high-index glass and specialized anti-reflection coatings, the 24mm Delos minimizes lateral color and maintains sharp star images across the entire 72° field. The design is optimized for fast focal ratio telescopes, ensuring minimal astigmatism even at the edge of the field stop.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eStray Light Control:\u003c\/strong\u003e Precision internal baffling and blackened lens edges reduce ghosting when observing bright objects near the field edge, such as the Moon or Albireo.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExit Pupil Management:\u003c\/strong\u003e The 24mm focal length provides a 4.8mm exit pupil in f\/5 systems, maximizing light throughput for large emission nebulae like the North American Nebula (NGC 7000).\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\u003eAdjustable Mechanical Interface\u003c\/h3\u003e\n      \u003cp\u003eThe eyepiece features a sliding, lockable eyeguard housing that allows the observer to set the eye distance precisely. This mechanism is critical for managing the 20mm eye relief and preventing the \"blackouts\" associated with incorrect eye placement.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLong Eye Relief:\u003c\/strong\u003e The 20mm spec allows observers with eyeglasses to view the full 72° field without contact between the lens and frames.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDioptrx Integration:\u003c\/strong\u003e The top housing is compatible with the Tele Vue Dioptrx astigmatism corrector, allowing for sharp views without wearing glasses.\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\u003eOperational Comparison\u003c\/h3\u003e\n      \u003cp\u003eSelecting the 24mm Delos involves balancing barrel size requirements and eye relief preferences within the Tele Vue ecosystem.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. 24mm Panoptic:\u003c\/strong\u003e The 24mm Delos requires a 2-inch diagonal or focuser, whereas the Panoptic fits 1.25-inch holders; however, the Delos offers 5mm more eye relief and a wider 72° apparent field.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. 22mm Nagler Type 4:\u003c\/strong\u003e The Delos provides 20mm of eye relief and a more neutral color balance compared to the 82° Nagler, which features 19mm of relief and a slightly warmer tone.\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\"\u003eWhy is the Tele Vue 24mm Delos a 2-inch eyepiece while others are 1.25-inch?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eTo maintain a constant 20mm eye relief and 72° apparent field at this focal length, the \u003cstrong\u003eTele Vue 24mm Delos\u003c\/strong\u003e requires larger internal lens elements. This necessitated a 2-inch barrel to avoid vignetting and maintain structural integrity.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Tele Vue 24mm Delos work in a 1.25-inch diagonal?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, the \u003cstrong\u003eTele Vue 24mm Delos\u003c\/strong\u003e features a dedicated 2-inch barrel. You must use a 2-inch diagonal or a telescope with a 2-inch focuser to utilize this eyepiece.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 24mm Delos suitable for planetary observing?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, its high contrast and color neutrality make the \u003cstrong\u003eTele Vue 24mm Delos\u003c\/strong\u003e excellent for medium-magnification planetary views, particularly in long focal length telescopes like SCTs where it helps frame the planet alongside its moons.\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\u003eEDL-24.0\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e24 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\u003e72°\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e28.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.1 lb (499 g)\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\/TeleVue-Delos-24mm-Eyepiece.jpg\" alt=\"Tele Vue 24mm Delos Eyepiece\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e24mm Delos Eyepiece (2\")\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-cap.jpg\" alt=\"Tele Vue 2-inch Dust Cap\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eDust Cap Set\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\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.televue.com\/pdf\/literature\/Delos%20Instructions.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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-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":51177535078685,"sku":"TV-EDL-24.0","price":771.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Delos-24mm-Eyepiece-1.jpg?v=1776473721"},{"product_id":"tele-vue-nagler-t5-31mm-82-eyepiece","title":"Tele Vue Nagler T5 31mm 82° Eyepiece - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e31mm Focal Length\u003c\/li\u003e\n\u003cli\u003e82° 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\u003e42mm 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 Nagler T5 31mm 82° Eyepiece - 2\"\u003c\/h2\u003e\n      \u003cp\u003eThe Type 5 31mm Nagler delivers the maximum possible true field of view in a 2-inch format while maintaining an expansive 82° apparent field. Known affectionately as \"The Terminator,\" this six-element powerhouse is designed to provide a spacewalk perspective that remains sharp across the entire focal plane. It serves as the definitive low-power tool for large-aperture Dobsonians and fast refractors where framing massive celestial structures is the priority.\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\u003eTrue Field and Edge Performance\u003c\/h3\u003e\n      \u003cp\u003eBy utilizing a 42mm field stop, the 31mm Nagler pushes the physical limits of the 2-inch barrel to maximize the amount of sky visible at moderate magnifications. This allows for high-contrast views of expansive targets like the Orion nebula or the Pleiades without sacrificing the magnification needed to resolve fine structural details.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNagler Contrast:\u003c\/strong\u003e Full multi-coatings and blackened lens edges eliminate internal reflections, ensuring a dark background sky even near bright lunar or planetary targets.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eField Correction:\u003c\/strong\u003e The Nagler design effectively minimizes astigmatism and lateral color, keeping star points tight and undistorted from the center to the field stop.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEyeglass Compatibility:\u003c\/strong\u003e 19mm of eye relief ensures that most observers can take in the full 82° field without removing their glasses.\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 Mechanical Considerations\u003c\/h3\u003e\n      \u003cp\u003eDue to its significant 2.2 lb mass, the 31mm Nagler requires intentional management of telescope balance and focuser tension. The rubberized grip ring ensures secure handling in cold environments or when wearing gloves, providing confidence during eyepiece swaps.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFocuser Load:\u003c\/strong\u003e The weight of this eyepiece can cause slip in friction-based focusers; ensure your drawtube tension is adjusted to prevent focal shift.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Given its physical volume, this eyepiece requires a dedicated large-format foam cutout in your accessory case to prevent movement during transport.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSafety Taper:\u003c\/strong\u003e The 2\" barrel is machined with a safety undercut to prevent the eyepiece from falling out of the diagonal or focuser should the set screw loosen.\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\u003eOperational Comparison\u003c\/h3\u003e\n      \u003cp\u003eFlagship eyepieces are defined by the trade-off between apparent field, exit pupil, and physical portability.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 41mm Panoptic:\u003c\/strong\u003e The 41mm Panoptic offers a slightly larger 46mm field stop, but the 31mm Nagler provides higher magnification and a much more immersive 82° apparent field.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003evs. Tele Vue 31mm Nagler (Type 4):\u003c\/strong\u003e While the Type 5 is the modern standard, the previous Type 4 designs focused on even longer eye relief at the cost of a slightly larger physical footprint.\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 31mm Nagler work well with an f\/4.5 telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, but it produces a 6.9mm exit pupil; if your eye's pupil cannot dilate this wide, you will lose light and may see the secondary mirror shadow in reflectors.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs a Paracorr necessary for this eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIn fast Newtonian systems (f\/5 or faster), the wide field will make mirror coma very obvious at the edges, so a Tele Vue Paracorr is highly recommended to maintain sharpness.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 31mm Nagler on a 1.25\" focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this is a dedicated 2\" eyepiece; the 42mm field stop is physically too large to be supported by the 1.25\" format.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I prevent the eyepiece from fogging?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eDue to the large mass of glass, it takes longer to reach ambient temperature; using dew heater strips or keeping the eyepiece in a pocket when not in use is recommended.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes it include Dioptrx compatibility?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the top of the eyepiece is designed to accept Tele Vue Dioptrx astigmatism correctors, allowing for glasses-free observing.\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\u003eEN5-31.0\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e31 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\u003e82°\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\u003e42 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.2 lbs (1000 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eElements\/Groups\u003c\/td\u003e\n\u003ctd\u003e6 \/ 4\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-Nagler-31mm-Eyepiece-1.jpg?v=1776474226\" alt=\"Tele Vue 31mm Nagler Eyepiece\" class=\"DAV-img-box\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e31mm Nagler 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=\"2-inch Dust Caps\" 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:\/\/www.televue.com\/pdf\/literature\/Nagler%20Type%204%20and%205%20Instructions.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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-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":51181118128413,"sku":"TV-EN5-31.0","price":1104.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele-Vue-Nagler-31mm-Eyepiece-1.jpg?v=1776474226"},{"product_id":"televue-plossl-20mm-50-eyepiece-used","title":"TeleVue Plössl 20mm 50° Eyepiece - Used","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eUsed, in perfect condition. Comes with original packaging and dust caps.\u003c\/li\u003e\n\u003cli\u003e20mm Focal Length\u003c\/li\u003e\n\u003cli\u003e50° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003e15mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e17.1mm 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\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\u003eTeleVue Plössl 20mm 50° Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe TeleVue Plössl 20mm 50° Eyepiece is a four-element symmetric design engineered to provide high-contrast lunar and planetary images in 1.25-inch format focusers. This focal length serves as a medium-power optic in most amateur telescopes, balancing magnification and exit pupil for deep-sky and solar system targets. Every air-to-glass surface features proprietary multi-coatings to reduce internal reflections and maximize transmission.\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\u003e17.1mm Field Stop and Framing Performance\u003c\/h3\u003e\n\u003cp\u003eThe 17.1mm field stop produces a 50° apparent field of view (AFOV) that remains sharp to the edge when used in telescopes with slower focal ratios. In an 8-inch f\/10 Schmidt-Cassegrain, this eyepiece yields 100x magnification and a 0.5° true field, sufficient to frame the full disc of the Moon. This field diameter is physically constrained by the symmetric Plössl geometry to ensure stars do not suffer from significant edge-of-field aberrations.\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\u003eOptical Baffling and Contrast for Planetary Detail\u003c\/h3\u003e\n\u003cp\u003eTeleVue utilizes high-index glass and blackened lens edges to minimize stray light scattering when observing bright targets like Jupiter or Venus. The simplified four-element layout has fewer air-to-glass surfaces than ultra-wide designs, which can reduce the probability of ghosting during lunar observations. This design provides a neutral color rendition, preserving the natural chromatic appearance of double stars like Albireo (Beta Cygni).\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\u003e15mm Eye Relief and Mechanical Compatibility\u003c\/h3\u003e\n\u003cp\u003eWith 15mm of eye relief, the TeleVue Plössl 20mm allows most observers to see the entire 50° field, though eyeglass wearers with thick frames may find the distance tight. The 1.25-inch barrel is threaded for standard filters and features a safety undercut to prevent the eyepiece from slipping out of the diagonal or focuser. At a weight of 3.8 oz, this optic is significantly lighter than wide-angle alternatives, reducing the need for mount rebalancing.\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\u003eTeleVue Plössl 20mm vs. 19mm Panoptic: Field vs. Eye Relief\u003c\/h3\u003e\n\u003cp\u003eWhile the 19mm Panoptic offers a wider 68° apparent field, the TeleVue Plössl 20mm utilizes a simpler optical path that some observers prefer for critical on-axis planetary work. The 20mm Plössl is more compact and budget-accessible but offers slightly less eye relief (15mm) compared to the 19mm Panoptic (13mm, though with a different eye guard style). Choose the Plössl for high center-field contrast in long focal length refractors or SCTs.\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\"\u003eIs the TeleVue Plössl 20mm suitable for use with a Barlow lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 20mm Plössl pairs well with the TeleVue 2x or 3x Barlow. When used with a 2x Barlow, it functions as a 10mm eyepiece with high contrast, while maintaining its original 15mm eye relief for comfortable high-power viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the TeleVue Plössl 20mm with a Dioptrx corrector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the 20mm Plössl is not directly compatible with the TeleVue Dioptrx astigmatism corrector. The Dioptrx requires specific eyeguard housing sizes found on longer focal length Plössls (32mm and 55mm) or Radian, Delos, and Nagler series eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the TeleVue Plössl 20mm work well in fast f\/4 or f\/5 Newtonian telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile sharp on-axis, simple Plössl designs show astigmatism near the edge of the field in telescopes faster than f\/5. For pinpoint stars to the edge in fast Dobsonians, consider the TeleVue Delos or DeLite series, though the 20mm Plössl remains an excellent center-field performer.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eEAP-20.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e50°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e17.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.8 oz (108 g)\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\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-20mm-Eyepiece-1.jpg?v=1775788667\" alt=\"TeleVue 20mm Plössl\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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-Dust-Cap-Top.jpg?v=1775788926\" alt=\"TeleVue 20mm Plössl Dust Cap Top\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Top)\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-1_25inch-Dustcap.jpg?v=1774403145\" alt=\"TeleVue 20mm Plössl Dust Cap Bottom\" class=\"DAV-img-box\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Bottom)\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\/TeleVue-20mm-Plossl-Eyepiece-Manual.pdf?v=1775788607\" 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\u003ca href=\"https:\/\/davidastro.com\/pages\/televue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTeleVue 5-Year Limited Warranty for Telescopes and Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223419584797,"sku":"U-TV-EAP-20.0","price":99.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-20mm-Eyepiece-1.jpg?v=1775788667"},{"product_id":"tele-vue-delos-17-3mm-72-degree-eyepiece","title":"Tele Vue Delos 17.3mm 72° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 17.3mm\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 72°\u003c\/li\u003e\n\u003cli\u003eEye Relief: 20mm\u003c\/li\u003e\n\u003cli\u003eField Stop Diameter: 21.0mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.95 lbs (431g)\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\u003eA Flawless Window on the Mid-Power Sky\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Delos 17.3mm 72° Eyepiece is a 1.25\" wide-field eyepiece engineered for observers who refuse to compromise on optical purity. It combines a generous field of view with exceptional correction, contrast, and comfort, delivering a viewing experience that feels transparent and natural. For those seeking the highest fidelity in the critical mid-power range, the Delos 17.3mm sets a benchmark for performance.\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\u003eThe Delos High-Correction Optical Engine\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the Delos is a highly corrected optical system designed to render a flat, sharp field of view. By controlling for aberrations like astigmatism and chromatic aberration from the center to the very edge, the eyepiece delivers pinpoint stars across its entire expanse. This level of correction means you are not limited to the center of the field for critical observation; the view remains pristine as your eye drifts across it.\u003c\/p\u003e\n\u003cp\u003eThis optical precision translates directly into higher contrast on difficult targets. When viewing globular clusters, the sharp star points resolve more cleanly against the black background, allowing you to pick out individual members deeper into the core. On the Moon and planets, the absence of false color ensures that subtle details and natural color tones are preserved.\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\u003eAn Immersive 72° Apparent Field\u003c\/h3\u003e\n\u003cp\u003eThe 72° apparent field of view provides a significant window on the sky that feels both expansive and comfortable. This field is wide enough to frame larger deep-sky objects, like the full expanse of the Andromeda Galaxy's core or the Beehive Cluster, without requiring you to pan your telescope. The experience is immersive, giving you a sense of looking through a porthole into space rather than a narrow tube.\u003c\/p\u003e\n\u003cp\u003eThe key trade-off in the Delos design is prioritizing perfect optical correction over achieving the absolute widest field possible. While eyepieces like the Nagler or Ethos offer larger fields, the Delos commits its entire 72° field to near-perfect fidelity. This makes it the right choice when image purity is more important than sheer field size.\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\u003eConstant 20mm Eye Relief for Viewing Comfort\u003c\/h3\u003e\n\u003cp\u003eEvery eyepiece in the Delos line features a constant, generous 20mm of eye relief. This is a deliberate design choice that ensures maximum comfort during long observing sessions, completely eliminating eye strain. For observers who wear glasses to correct for astigmatism, this long eye relief allows you to see the entire 72° field of view without removing your spectacles.\u003c\/p\u003e\n\u003cp\u003eThe fixed eye relief across the series also provides a consistent feel as you switch between different Delos focal lengths. Your head position and viewing posture remain the same, allowing you to concentrate on the object in view rather than readjusting your approach every time you change magnification.\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\u003eRepeatable Eye Placement with a Locking Eyeguard\u003c\/h3\u003e\n\u003cp\u003eTo make perfect use of the optical system, your eye must be positioned correctly. The Delos features an intuitive sliding eyeguard with a locking mechanism that allows you to set the ideal height and secure it in place. This mechanism ensures your eye returns to the exact same position every time you look into the eyepiece, preventing blackouts and kidney-beaning effects.\u003c\/p\u003e\n\u003cp\u003eThis practical feature is invaluable in the field. Once you find the sweet spot for your eye, you can lock it down, block out stray light from your surroundings, and maintain a comfortable, stable view throughout the night. It transforms the eyepiece from just a set of optics into a predictable and reliable observing tool.\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\u003eMaximum Contrast through Advanced Coatings\u003c\/h3\u003e\n\u003cp\u003eTo ensure the image is as bright and contrasty as possible, every air-to-glass surface in the Delos 17.3mm receives Tele Vue's proprietary index-matched multi-coatings. These advanced coatings maximize light throughput, resulting in brighter images of faint nebulae and galaxies. Furthermore, the edges of all lenses are blackened to absorb stray light that could otherwise reduce contrast and wash out fine detail.\u003c\/p\u003e\n\u003cp\u003eThe visual result is a deep, dark background sky that makes celestial objects \"pop\" in the field of view. When observing an object like the Orion Nebula through the Delos 17.3mm in a moderate aperture telescope, the faint outer loops of nebulosity are more easily visible, and the tightly packed stars of the Trapezium resolve cleanly without distracting glare.\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 Workflow with a Parfocal Design\u003c\/h3\u003e\n\u003cp\u003eThe Delos 17.3mm is designed to be parfocal with all other Tele Vue Delos, Panoptic, Nagler, and Plössl eyepieces. This means that when you switch between any of these eyepieces, the need to refocus is dramatically reduced or eliminated entirely. This is a powerful workflow advantage that saves valuable time at the telescope.\u003c\/p\u003e\n\u003cp\u003eImagine locating an object with a low-power Panoptic and then swapping to the Delos 17.3mm for a closer look. With a parfocal system, the object snaps right into view with little to no adjustment of the focuser. This keeps your target centered and allows you to spend more time observing and less time hunting for focus in the dark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Delos 17.3mm compare to a Tele Vue Nagler eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Delos 17.3mm has a 72° apparent field of view and 20mm of eye relief, prioritizing optical purity and viewing comfort. A Nagler has a wider 82° field but shorter eye relief. Observers with eyeglasses or those who value a more relaxed view often prefer the Delos, while those seeking the most immersive \"spacewalk\" experience may choose the Nagler.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 20mm of eye relief good for observers who wear glasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 20mm of eye relief is excellent for eyeglass wearers. It allows you to keep your glasses on and still see the entire 72° field of view, which is critical if you need them to correct for astigmatism.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this eyepiece work well in my fast f\/4.5 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Delos line is exceptionally well-corrected and performs superbly in fast telescopes. You can expect sharp stars across the entire field of view, even at f\/4. For best results, pairing it with a Tele Vue Paracorr Type 2 will correct for the telescope's native coma.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of targets is the Delos 17.3mm best for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 17.3mm focal length provides a versatile medium magnification. It is ideal for framing medium-to-large open clusters like the Pleiades, viewing globular clusters with high contrast, and observing large galaxies and nebulae like the Andromeda Galaxy or the Lagoon Nebula.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the locking eyeguard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe locking eyeguard allows you to set the perfect distance between your eye and the eyepiece lens for optimal viewing. Once you find this position, you can lock it, which prevents blackouts and ensures you get the full, comfortable field of view every time you look through it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Delos 17.3mm compatible with DIOPTRX?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Delos 17.3mm is fully compatible with the Tele Vue DIOPTRX astigmatism corrector. This allows users with astigmatism to observe without wearing their glasses, while still achieving a perfectly sharp image.\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 SKU\u003c\/td\u003e\n\u003ctd\u003eTV-EDL-17.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e17.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View (AFOV)\u003c\/td\u003e\n\u003ctd\u003e72°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e21.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.95 lbs \/ 15.2 oz \/ 431 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight (max)\u003c\/td\u003e\n\u003ctd\u003e4.3 in \/ 109 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes, with Tele Vue Plössl, Panoptic, Nagler, and other Delos eyepieces\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 Delos 17.3mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Delos_17.3mm_Eyepiece_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\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223878664477,"sku":"TV-EDL-17.3","price":613.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Delos_17.3mm_Eyepiece_1.jpg?v=1777515021"},{"product_id":"tele-vue-delos-14mm-72-degree-eyepiece","title":"Tele Vue Delos 14mm 72° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 14mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 72°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 20mm\u003c\/li\u003e\n\u003cli\u003eField Stop Diameter: 17.4mm\u003c\/li\u003e\n\u003cli\u003eDioptrx-Ready: Yes\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\u003ePlanetary Contrast Meets Immersive Views: The Delos 14mm Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Delos 14mm 72° Eyepiece is a high-performance 1.25\" eyepiece that delivers the sharpness, contrast, and color fidelity of a planetary eyepiece across an immersive, medium-power field of view. It is engineered for observers who refuse to compromise on optical purity but desire a more expansive window on the universe than traditional designs allow. This eyepiece excels at revealing fine detail on solar system objects while providing enough field to frame globular clusters and smaller nebulae against a dark, uniform background.\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\u003eAdvanced Optical Design for High-Fidelity Views\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the Delos is a sophisticated optical system designed to create a flat, high-contrast, and distortion-free image. Every glass surface is fully multi-coated to maximize light transmission and minimize scatter, resulting in views that are exceptionally bright with a neutral color balance. The internal baffling and blackened lens edges further enhance contrast by eliminating internal reflections that can wash out faint details.\u003c\/p\u003e\n\u003cp\u003eFor you, this means that bright objects like Jupiter and Saturn snap into focus with sharp, well-defined edges, free of distracting internal glare or false color. Faint planetary cloud belts and subtle lunar rilles are rendered with clarity, while the true colors of stars are preserved, making it an excellent choice for resolving tight double stars.\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\u003eThe 72° Apparent Field of View Sweet Spot\u003c\/h3\u003e\n\u003cp\u003eThe Delos's 72° apparent field of view (AFOV) provides a tangible sense of immersion without introducing the edge-of-field aberrations often found in more extreme wide-field designs. This field is wide enough to feel expansive, allowing you to comfortably track objects in a non-driven telescope without them drifting out of view too quickly. The optical correction ensures stars remain sharp points across the entire field, even in faster f\/ratio telescopes.\u003c\/p\u003e\n\u003cp\u003eOn a target like the Hercules Globular Cluster (M13), the 14mm Delos in a 10-inch f\/10 Schmidt-Cassegrain provides 179x magnification. This is enough power to resolve the dense core into a spray of individual stars, while the 72° field is wide enough to frame the entire cluster with surrounding dark sky, giving it a distinct three-dimensional appearance.\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\u003eConsistent 20mm Eye Relief for Viewing Comfort\u003c\/h3\u003e\n\u003cp\u003eEvery eyepiece in the Delos line features a constant 20mm of eye relief, a generous distance that allows most observers, including those who wear glasses for astigmatism, to see the entire field of view without strain. This consistent specification across the series means you can switch between different Delos focal lengths without needing to readjust your viewing position. The long eye relief reduces eye fatigue during extended observing sessions, letting you concentrate on the object, not on finding a comfortable head position.\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 Adjustable and Locking Eyeguard\u003c\/h3\u003e\n\u003cp\u003eTo make perfect use of the long eye relief, the Delos incorporates a sliding, locking eyeguard mechanism. This allows you to set the ideal distance between your eye and the top lens and lock it in place, preventing accidental shifts during use. By customizing the eyeguard height, you can effectively block stray light and maintain the correct eye placement needed to see the full 72° field without experiencing blackouts or kidney-beaning effects.\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\u003eReady for Dioptrx Astigmatism Correction\u003c\/h3\u003e\n\u003cp\u003eA key feature for many observers is the Delos's compatibility with Tele Vue's Dioptrx system. The top of the eyepiece is threaded to accept these astigmatism correctors directly, allowing you to observe without your eyeglasses while still achieving perfectly sharp star images. This creates a more direct and unencumbered connection to the eyepiece, eliminating the reflections and field reduction that can occur when looking through both your glasses and the eyepiece optics.\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\u003eDurable 1.25\" Barrel with Filter Threads\u003c\/h3\u003e\n\u003cp\u003eThe Delos 14mm uses a standard 1.25\" chrome barrel for broad compatibility with any telescope accepting this format. The barrel features a safety undercut to help prevent the eyepiece from accidentally slipping out of the focuser or diagonal. It is also threaded to accept standard 1.25\" filters, allowing you to easily add a moon filter, light pollution filter, or planetary color filter to enhance your views without needing separate adapters.\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\u003eChoosing Your Mid-Power Eyepiece: Delos vs. Nagler and Panoptic\u003c\/h3\u003e\n\u003cp\u003eThe Delos series occupies a specific niche in the Tele Vue lineup, trading the extreme field of a Nagler for superior contrast and eye relief.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler Type 6 13mm:\u003c\/strong\u003e The Nagler offers a wider 82° apparent field, creating a more dramatic \"spacewalk\" effect. However, the Delos 14mm provides significantly more eye relief (20mm vs. 12mm) and is often perceived as having higher contrast, making it a better choice for planetary detail and for observers who require eyeglasses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Panoptic 15mm:\u003c\/strong\u003e The Panoptic offers a 68° field and is a smaller, lighter eyepiece. The Delos provides a slightly larger and more corrected field of view with longer eye relief, making it a step up in viewing comfort and edge performance for a modest increase in size and weight. The choice here is often between maximum portability (Panoptic) and a more immersive, comfortable experience (Delos).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe genuine trade-off for the Delos's performance is its size and weight compared to simpler designs like Plössls or the Panoptic series. It requires a robust focuser and may necessitate rebalancing the telescope when swapping with much lighter eyepieces. For many, this is a minor inconvenience for the level of optical quality and viewing comfort it provides.\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\"\u003eIs the Delos 14mm good for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it excels at it. The Delos line is known for high-contrast, sharp optics with neutral color, making it ideal for discerning fine details on Jupiter's cloud bands, Saturn's rings, and features on Mars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Delos 14mm compare to a Nagler 13mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Delos 14mm offers superior viewing comfort with 20mm of eye relief versus the Nagler's 12mm. While the Nagler has a wider 82° field, the Delos is often preferred by planetary observers for its perceived higher contrast and by anyone who wears glasses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to use a Paracorr with the Delos 14mm in my Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn fast Dobsonians (f\/4.5 or lower), a coma corrector like the Tele Vue Paracorr is recommended with any eyepiece to ensure sharp stars across the entire field. The Delos is well-corrected, but it cannot fix the coma inherent in the telescope's mirror.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Delos 14mm if I wear glasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The long 20mm of eye relief is specifically designed to allow eyeglass wearers to see the full 72° field of view. If your glasses correct for astigmatism, you can also use Tele Vue's Dioptrx accessory instead of your glasses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the purpose of the locking eyeguard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe locking eyeguard allows you to set the perfect distance for your eye from the top lens and keep it there. This prevents \"blackouts\" or \"kidney-beaning\" and ensures you are always positioned to see the entire field comfortably, especially when sharing the view with others.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Delos 14mm too heavy for a small telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt 12.8 oz (363 g), it is a substantial eyepiece. While it will work well in most telescopes, you may need to rebalance smaller refractors or Dobsonians when switching from very lightweight eyepieces. A quality focuser is recommended.\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\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eTV-EDL-14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View (AFOV)\u003c\/td\u003e\n\u003ctd\u003e72°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e17.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e12.8 oz \/ 363 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e4.3\" \/ 109mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003e1.25\" Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParacorr Compatible\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDioptrx Compatible\u003c\/td\u003e\n\u003ctd\u003eYes\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 Delos 14mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Delos_14mm_Eyepiece_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":51223878697245,"sku":"TV-EDL-14.0","price":613.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Delos_14mm_Eyepiece_1.jpg?v=1777515020"},{"product_id":"tele-vue-delos-12mm-72-degree-eyepiece","title":"Tele Vue Delos 12mm 72° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 12mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 72°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 20mm\u003c\/li\u003e\n\u003cli\u003eField Stop Diameter: 15.1mm\u003c\/li\u003e\n\u003cli\u003eCoatings: Fully Multi-Coated\u003c\/li\u003e\n\u003cli\u003eWeight: 12.8 oz (0.80 lbs)\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\u003eHigh-Contrast Clarity Meets Immersive Comfort in a Planetary Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Delos 12mm 72° Eyepiece is an optical instrument designed to deliver the immersive feel of a wide-field eyepiece with the high-contrast, on-axis performance of a dedicated planetary ocular. It combines a generous 72° apparent field with long eye relief, creating a viewing experience that is both expansive and comfortable for extended sessions at the telescope, whether you wear eyeglasses or not.\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\u003eThe 72° Apparent Field Optical System\u003c\/h3\u003e\n\u003cp\u003eThe Delos optical design achieves a wide 72° apparent field of view while maintaining exceptional control over aberrations. Every glass surface is fully multi-coated, and lens edges are blackened to maximize light throughput and suppress internal reflections. The result is a bright, high-contrast image with a neutral color balance, allowing the natural hues of planets and stars to be observed without artificial tint.\u003c\/p\u003e\n\u003cp\u003eThis level of correction makes the 12mm Delos a versatile performer. On a short focal length refractor, it can frame open clusters like the Pleiades with pinpoint stars across the field. In a large Dobsonian, it provides the magnification needed to resolve fine detail in globular clusters such as M13, where the wide field helps to frame the object against a dark, velvety background.\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\u003eConsistent 20mm Eye Relief and Adjustable Eyeguard\u003c\/h3\u003e\n\u003cp\u003eA defining feature of the Delos line is its comfortable and consistent 20mm of eye relief across all focal lengths. This is a significant benefit for observers who wear eyeglasses for astigmatism, as it allows you to see the entire 72° field without having to press your glasses against the lens. You can simply leave your glasses on and enjoy the full view.\u003c\/p\u003e\n\u003cp\u003eTo accommodate observers who do not wear glasses, Tele Vue developed an intuitive sliding, locking eyeguard. This mechanism allows you to set the height of the soft rubber eyeguard to the perfect position for your eye, effectively blocking stray light and preventing blackouts. Once set, it stays put, ensuring a comfortable and repeatable viewing position every time you use the 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\u003eReady for Dioptrx Astigmatism Correction\u003c\/h3\u003e\n\u003cp\u003eFor observers with astigmatism who prefer not to wear glasses at the eyepiece, the Delos series is fully compatible with the Tele Vue Dioptrx system. The eyeguard housing is specifically designed to accept any Dioptrx corrector, which simply drops into the top of the eyepiece. This allows you to dial in your precise astigmatism correction, ensuring the sharpest possible views without corrective lenses in the way.\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\u003eA Flat Field for Sharpness Edge-to-Edge\u003c\/h3\u003e\n\u003cp\u003eThe Delos optical formula is engineered to produce a flat focal plane, a critical performance factor, especially in well-corrected telescopes. This means that if a star is in sharp focus in the center of the field, it remains a tight point of light all the way to the field stop. This characteristic is vital for lunar and planetary observing, where you want to see uniform sharpness across the entire disk of Jupiter or the Moon's terminator.\u003c\/p\u003e\n\u003cp\u003eThe trade-off for this level of correction in a compact 1.25\" barrel is weight. The Delos 12mm is a substantial eyepiece, and its mass is a direct consequence of the large, high-index glass elements required to achieve this performance. While it balances well on most telescopes, it is a point of consideration for users with very small, lightweight instruments.\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\u003eMaximizing Contrast with Internal Baffling\u003c\/h3\u003e\n\u003cp\u003eBeyond the lens coatings, the internal mechanics of the Delos are optimized for contrast. All interior surfaces are treated with anti-reflective finishes, and sharp-edged baffles are placed to intercept stray light paths. This attention to detail pays off when observing faint details near bright objects, like trying to spot the Cassini Division in Saturn's rings or resolving faint craterlets on the floor of Plato on the Moon.\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\u003eSecure Fit with the 1.25\" Barrel and Safety Undercut\u003c\/h3\u003e\n\u003cp\u003eThe Delos 12mm uses a standard 1.25\" barrel for broad compatibility with any telescope accepting this format. It features a machined safety undercut, which is a groove that allows the focuser's set screw to securely lock the eyepiece in place. This provides peace of mind, helping to prevent the eyepiece from accidentally slipping out of the focuser if a screw loosens slightly during a cold night.\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\u003eObserving with the Delos 12mm\u003c\/h3\u003e\n\u003cp\u003eImagine using the 12mm Delos in an 8-inch, f\/10 Schmidt-Cassegrain, yielding about 169x magnification. Centered on Jupiter, the planet's disk is large and sharply defined. As your eye adapts, the main equatorial belts resolve into finer, parallel bands with subtle coloration. The Great Red Spot, when visible, stands out not just as a smudge but as an entity with structure, all while the Galilean moons hang like sharp diamonds in the dark space nearby, perfectly in focus even at the edge of the 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\u003eChoosing Your Mid-Power Tele Vue Eyepiece\u003c\/h3\u003e\n\u003cp\u003eThe Delos 12mm occupies a space between several other Tele Vue families, each with distinct advantages.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler 12mm Type 4:\u003c\/strong\u003e The Nagler offers a wider 82° apparent field, creating a more pronounced \"spacewalk\" effect. However, the Delos provides significantly more eye relief (20mm vs. 12mm), making it the clear choice for observers who wear eyeglasses. The Delos is also often perceived as having slightly higher contrast for planetary viewing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Panoptic 15mm:\u003c\/strong\u003e The 15mm Panoptic has a smaller 68° apparent field and is much lighter than the Delos. It is an excellent choice for a lower-power, grab-and-go eyepiece. You would choose the 12mm Delos when you need more magnification and prefer its longer eye relief and slightly wider, more corrected field.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Tele Vue Delos 12mm good for someone with eyeglasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is an excellent choice. The Delos 12mm features a long 20mm of eye relief, which allows most eyeglass wearers to see the full 72° field of view comfortably without removing their glasses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Delos 12mm compare to the Nagler 12mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Nagler 12mm has a wider 82° apparent field, but the Delos 12mm offers more eye relief (20mm vs 12mm) and is often considered to have slightly higher contrast, making it a strong performer on planets and the Moon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the Delos adjustable eyeguard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adjustable eyeguard allows you to set the perfect distance between your eye and the eyepiece lens. This helps to see the entire field of view easily and blocks stray light from your surroundings, which improves contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use a Tele Vue Delos eyepiece with a Dioptrx astigmatism corrector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, all Delos eyepieces are designed to be fully compatible with the Tele Vue Dioptrx system. The corrector fits directly into the top of the eyepiece, allowing you to observe without your glasses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Delos 12mm too heavy for a small telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt 12.8 ounces (363 grams), the Delos 12mm is a substantial eyepiece. While it will work with any 1.25\" focuser, it may present a balance challenge on very small, lightweight telescopes. It is always best to check your mount's capacity.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eEDL-12.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e72°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e15.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e12.8 oz (0.80 lbs \/ 363 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4.3\" L x 2.0\" W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDioptrx Compatible\u003c\/td\u003e\n\u003ctd\u003eYes\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 Delos 12mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Delos_12mm_Eyepiece_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\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223878730013,"sku":"TV-EDL-12.0","price":613.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Delos_12mm_Eyepiece_1.jpg?v=1777515020"},{"product_id":"tele-vue-delos-10mm-72-degree-eyepiece","title":"Tele Vue Delos 10mm 72° Eyepiece - 1.25\"","description":"","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223878762781,"sku":"TV-EDL-10.0","price":613.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Delos_10mm_Eyepiece_1.jpg?v=1777515020"},{"product_id":"tele-vue-delos-8mm-72-degree-eyepiece","title":"Tele Vue Delos 8mm 72° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 8mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 72°\u003c\/li\u003e\n\u003cli\u003eEye Relief: 20mm\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eField Stop Diameter: 9.9mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.95 lbs \/ 431 g\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\u003eWalk Into the View: The High-Power Delos 8mm Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Delos 8mm 72° Eyepiece is a high-magnification planetary and deep-sky instrument designed to deliver the optical performance of the flagship Ethos line in a more accessible, consistently comfortable format. It pairs a wide 72° apparent field with long, 20mm eye relief, creating an immersive, high-contrast window for detailed exploration of celestial targets. For the observer who refuses to compromise on comfort during critical, high-power observation, the Delos 8mm is an uncompromising choice.\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\u003eThe Delos Optical Design: Clarity Across a 72° Field\u003c\/h3\u003e\n\u003cp\u003eAt the core of the Delos 8mm is a sophisticated, multi-element optical system engineered for exceptional correction. The design minimizes aberrations like chromatic aberration and astigmatism, resulting in sharp, high-contrast views from the center to the very edge of the 72° field. This level of correction means that star clusters resolve into tight pinpoints across the entire view, and subtle planetary details remain sharp without false color.\u003c\/p\u003e\n\u003cp\u003eThis optical precision makes the Delos 8mm a versatile performer. In a short focal length refractor, it can provide the high magnification needed to split tight double stars or resolve globular clusters like M13 into a granular diamond dust. In a larger Dobsonian, it delivers the power to hunt for fine structure within planetary nebulae or examine the delicate dust lanes in brighter 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\u003eConsistent 20mm Eye Relief for Total Comfort\u003c\/h3\u003e\n\u003cp\u003eEvery eyepiece in the Delos line, including the 8mm, features a generous and constant 20mm of eye relief. This is a deliberate design choice that directly impacts your observing comfort and effectiveness, especially during long sessions. Unlike many high-power eyepieces that require you to press your eye against the lens, the Delos allows you to relax and find a natural head position.\u003c\/p\u003e\n\u003cp\u003eFor observers who wear glasses to correct for astigmatism, this long eye relief is essential. It provides enough distance to see the entire 72° field of view without removing your spectacles. The benefit is immediate: you can spend your time observing the target, not struggling to find a comfortable viewing position.\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\u003eAdjustable Locking Eyeguard for Precise Positioning\u003c\/h3\u003e\n\u003cp\u003eTo make perfect use of the long eye relief, the Delos 8mm incorporates an intuitive, sliding eyeguard with a locking mechanism. This is not a simple fold-up rubber cup. You can raise the guard to the exact height that positions your eye at the ideal exit pupil distance, effectively eliminating blackouts or \"kidney bean\" effects that can plague other long eye relief designs.\u003c\/p\u003e\n\u003cp\u003eOnce you find your perfect position, a simple twist locks it in place. This ensures your eye is returned to the same optimal point every time you look into the eyepiece, a critical feature for maintaining dark adaptation and focus on faint details. It's a mechanical solution that provides a consistent, repeatable observational experience.\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\u003eMaximizing Contrast with Superior Coatings and Baffling\u003c\/h3\u003e\n\u003cp\u003eHigh magnification demands the highest possible contrast to reveal faint details. The Delos 8mm achieves this through Tele Vue's proprietary full multi-coatings on every air-to-glass surface and meticulous edge-blackening of each lens element. These treatments work in concert to maximize light transmission while suppressing stray light and internal reflections.\u003c\/p\u003e\n\u003cp\u003eThe visual result is a darker background sky and an enhanced perception of detail. On Jupiter, you will find it easier to distinguish between subtle belt and zone colors. When observing the Moon, the terminator appears crisp and well-defined, with deep black shadows that reveal crater wall topography with stark clarity.\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\u003eThe Experience of High Power: A Night on Jupiter\u003c\/h3\u003e\n\u003cp\u003eImagine centering Jupiter in your telescope with the Delos 8mm on a night of steady seeing. At this magnification, the planet is no longer a small disc but a detailed world. The first things you notice are the two main equatorial belts, but as your eye adapts, the eyepiece's contrast allows you to pick out thinner, fainter belts and the subtle, swirling festoons between them.\u003c\/p\u003e\n\u003cp\u003eWith patience, the Great Red Spot, if visible, shows not just its presence but hints of its oval shape and texture. The four Galilean moons are not just points of light; they are tiny, distinct discs against the blackness of space. This is the advantage of a well-corrected, high-contrast, high-power eyepiece: it transforms familiar targets into objects of deep exploration.\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\u003eBuilt for the Field: Barrel Design and Dioptrx\u003c\/h3\u003e\n\u003cp\u003eThe Delos 8mm features a chrome-plated 1.25\" barrel that is both durable and precisely machined for a smooth fit in any standard focuser. It includes the signature Tele Vue safety undercut, a groove machined into the barrel that helps prevent the eyepiece from accidentally slipping out of the focuser if the locking screw loosens. This small detail provides peace of mind when handling your equipment in the dark.\u003c\/p\u003e\n\u003cp\u003eLike all premium Tele Vue eyepieces, the Delos is also threaded to accept the Dioptrx astigmatism corrector. This allows observers with astigmatism to dial in a perfect correction at the eyepiece itself, enabling them to observe without their glasses and still achieve the sharpest possible views. It's a system that prioritizes the best possible image for every observer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Delos 8mm good for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is an excellent choice for planetary observation. The 8mm focal length provides high magnification suitable for most telescopes, and the highly corrected optics deliver the sharpness and contrast needed to see fine details on Jupiter, Saturn, and Mars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Delos compare to the Tele Vue Nagler or Panoptic series?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Delos was designed to be a bridge between the two. It offers a wider field than a Panoptic (72° vs 68°) but prioritizes a long, consistent 20mm eye relief, which the ultra-wide 82° Naglers do not. If comfort, especially with glasses, is your top priority, the Delos is often the better choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need a Paracorr with the Delos 8mm in my fast Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, for fast reflectors (f\/5 or below), a coma corrector like the Tele Vue Paracorr Type 2 is highly recommended. While the Delos has excellent edge-of-field correction, it cannot correct for the coma inherent in the telescope's primary mirror. The Paracorr will ensure stars remain sharp across the entire 72° field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main trade-off with the Delos design?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary trade-off is size and weight for the comfort it provides. To achieve the wide field and long eye relief, the Delos eyepieces are larger and heavier than simpler designs like a Plössl. This is a consideration for small, lightweight telescopes where balance can be an issue.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Delos 8mm for deep-sky observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The 8mm focal length is ideal for resolving the cores of globular clusters, viewing smaller planetary nebulae like the Ring Nebula (M57) or the Dumbbell Nebula (M27), and examining details in the brighter galaxies.\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\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eTV-EDL-08.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e72°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e9.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Elements\u003c\/td\u003e\n\u003ctd\u003eNot specified by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.95 lbs (431 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e4.3\" (109 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Diameter\u003c\/td\u003e\n\u003ctd\u003e2.1\" (53 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003e1.25\" (M28.5 x 0.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes, with other Delos eyepieces\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 Delos 8mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Top Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Bottom Dust Cap\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_Delos_8mm_Eyepiece_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\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223878861085,"sku":"TV-EDL-08.0","price":613.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Delos_8mm_Eyepiece_1.jpg?v=1777515020"},{"product_id":"tele-vue-delos-6mm-72-degree-eyepiece","title":"Tele Vue Delos 6mm 72° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 6mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 72°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 20mm\u003c\/li\u003e\n\u003cli\u003eOptical Design: Delos\u003c\/li\u003e\n\u003cli\u003eCoatings: Fully Multi-Coated\u003c\/li\u003e\n\u003cli\u003eWeight: 0.45 lbs\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\u003ePlanetary Power Meets Deep-Sky Comfort: The Delos 6mm Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Delos 6mm 72° Eyepiece is an optical instrument designed for high-magnification observers who refuse to compromise on comfort or field of view. It delivers the sharp, high-contrast performance required for detailed planetary, lunar, and double-star observation, while providing a wide 72° apparent field and a generous 20mm of eye relief. This unique combination solves the classic problem of high-power eyepieces: the trade-off between power and viewing comfort.\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\u003eA Wide-Field Window for High-Power Observing\u003c\/h3\u003e\n\u003cp\u003eThe Delos 6mm provides a 72-degree apparent field of view that feels expansive at high power. This moderately wide field makes it easier to locate and track objects, especially with non-driven mounts, as the target drifts more slowly across your view. The optical system is engineered to maintain sharp, high-contrast star points and planetary details across the entire field, largely free of distracting lateral color or edge-of-field astigmatism, even in fast f\/ratio telescopes.\u003c\/p\u003e\n\u003cp\u003eFor the observer, this means you can study the delicate banding on Jupiter or the Cassini Division in Saturn's rings without the planet softening as it moves away from the center. The wider field provides a more immersive context, framing the target against a dark, velvety background, which makes the experience more like looking through a porthole than a keyhole.\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\u003eMaximum Contrast Through Advanced Coatings\u003c\/h3\u003e\n\u003cp\u003eEvery air-to-glass surface in the Delos 6mm receives Tele Vue's proprietary index-matched multi-coatings, while the lens edges are meticulously blackened. This two-part approach is critical for high-magnification work, where maximizing light throughput and minimizing scatter are paramount. The coatings ensure that the maximum amount of light from the target reaches your eye, while the blackened edges prevent stray light from bouncing between elements and reducing contrast.\u003c\/p\u003e\n\u003cp\u003eThe visual result is a view with a starkly black background, allowing faint planetary details, subtle lunar crater floor textures, and the dim companions of double stars to stand out. This high signal-to-noise ratio is what separates a good view from a memorable one, especially when pushing the limits of your telescope on a night of steady seeing.\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\u003eConsistent 20mm Eye Relief for Viewing Comfort\u003c\/h3\u003e\n\u003cp\u003eOne of the defining features of the Delos series is its consistent, long 20mm eye relief. Unlike many high-power eyepieces that force you to press your eye against the lens, the Delos 6mm allows you to maintain a comfortable distance. This is a significant advantage for eyeglass wearers, who can see the entire 72° field of view without removing their glasses. For all observers, it reduces eye strain during long sessions, allowing your eye to relax and perceive more subtle details.\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 Tuning with the Locking Eyeguard\u003c\/h3\u003e\n\u003cp\u003eTo complement the long eye relief, the Delos features an adjustable, locking eyeguard. This mechanical system allows you to set the perfect distance between your eye and the top lens, effectively tuning the eyepiece to your unique facial structure and preference, with or without glasses. Once you find the sweet spot where the full field is visible without blackouts or \"kidney-beaning,\" you can lock it in place for repeatable, instant comfort every time you use it.\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 Transitions with a Parfocal Design\u003c\/h3\u003e\n\u003cp\u003eThe Delos 6mm is designed to be parfocal with the entire Delos line and most other Tele Vue 1.25\" eyepieces, such as Plössls and Panoptics. This means that when you switch from a lower-power Tele Vue eyepiece to the 6mm Delos, you will only need a minimal turn of the focus knob, if any. This practical feature saves valuable time in the field, keeping your target in sharp focus as you step up in magnification and preventing the frustration of having to re-acquire the object.\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\u003eCorrecting Astigmatism with DIOPTRX\u003c\/h3\u003e\n\u003cp\u003eFor observers with astigmatism, the Delos 6mm is threaded to accept Tele Vue's DIOPTRX correctors. This accessory attaches directly to the eyepiece, allowing you to dial in your precise astigmatism correction. The benefit is significant: you can observe without your eyeglasses, eliminating the extra glass surfaces and potential reflections, while still enjoying the sharpest possible star points your telescope can deliver. It makes the eyepiece a truly customized tool for your eyes.\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\u003eObserving with the Delos 6mm\u003c\/h3\u003e\n\u003cp\u003eOn a night of good seeing, insert the 6mm Delos into a quality 4-inch refractor to achieve around 160x. Center on the lunar crater Clavius. The view is not just a flat white disk; the high-contrast optics reveal the subtle grayscale variations in the crater floor and the crisp shadows cast by the central peaks. The 72° field allows you to take in the entire crater and its surroundings without feeling cramped, and the long eye relief lets you study the details for minutes on end without fatigue.\u003c\/p\u003e\n\u003cp\u003eThe main limitation of any high-power eyepiece is its dependence on atmospheric conditions. The 6mm focal length will deliver very high magnification in most telescopes, and if the seeing is poor, the image will appear soft or blurry. On such nights, a lower-power eyepiece will provide a more satisfying view. However, when the atmosphere is stable, the Delos 6mm provides a level of detail that makes waiting for those nights worthwhile.\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\u003eChoosing Your High-Power Tele Vue Eyepiece\u003c\/h3\u003e\n\u003cp\u003eTele Vue offers several options for high-magnification observing. Understanding the trade-offs helps in making the right choice for your observing style.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler Type 6 5mm:\u003c\/strong\u003e The 5mm Nagler provides a wider 82° apparent field, creating a more immersive \"spacewalk\" experience. However, it achieves this with a much shorter eye relief of 12mm, which can be difficult for eyeglass wearers. The Delos 6mm prioritizes viewing comfort with its 20mm eye relief while still offering a generous 72° field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Plössl 8mm + 2x Barlow:\u003c\/strong\u003e A classic combination that is sharp on-axis but suffers from a narrow 50° apparent field and tight eye relief. The Delos 6mm offers a significantly wider, more comfortable, and more engaging view in a single, integrated package. Choose the Delos when field of view and comfort are as important as raw power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Delos 6mm a good choice for my 8\" Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent choice. In a typical f\/6 Dobsonian, a 6mm eyepiece yields 200x magnification, a sweet spot for planetary and lunar detail. The 72° field of view provides more time to observe an object as it drifts, which is a major advantage with a non-tracking mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Delos 6mm compare to the Nagler 5mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Delos prioritizes viewing comfort with 20mm of eye relief, making it ideal for eyeglass wearers. The Nagler provides a wider 82° field but has a tighter 12mm eye relief. If you value comfort and wear glasses, choose the Delos; if you want the most immersive field possible and don't require long eye relief, the Nagler is a strong option.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Delos 6mm with a Barlow lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can, but it will result in extremely high magnification that is only usable on nights of exceptional atmospheric stability. A 2x Barlow would yield magnifications often too high for most telescopes and seeing conditions. The Delos is designed to be a primary high-power eyepiece on its own.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the locking eyeguard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe locking eyeguard allows you to set the perfect eye distance to see the full field of view without blackouts. Once you find your ideal position, you can lock it, so it's perfectly set for you every time, saving adjustment time in the dark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need DIOPTRX if I have astigmatism?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf you have astigmatism, you can observe with your glasses on thanks to the Delos's long eye relief. However, using the DIOPTRX allows you to observe without glasses, removing extra layers of glass for a higher-contrast view and providing a perfectly sharp focus customized for your eyes.\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\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e72°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e7.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully index-matched multi-coatings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 lbs \/ 204 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1.5\" D x 3.5\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes, with Tele Vue Group \"B\" eyepieces (Plössl, Panoptic, Nagler, etc.)\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 Delos 6mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Delos_6mm_Eyepiece_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\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223878992157,"sku":"TV-EDL-06.0","price":613.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Delos_6mm_Eyepiece_1.jpg?v=1777515020"},{"product_id":"tele-vue-delos-4-5mm-72-degree-eyepiece","title":"Tele Vue Delos 4.5mm 72° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 4.5mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 72°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 20mm\u003c\/li\u003e\n\u003cli\u003eField Stop Diameter: 5.9mm\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\u003eHigh-Power Views, Without the High-Power Strain\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Delos 4.5mm 72° Eyepiece delivers high-magnification planetary, lunar, and double-star views with a level of comfort that changes the game for serious observers. It combines a sharp, high-contrast optical system with a generous 20mm of eye relief, solving the age-old problem of eye strain during detailed, high-power observation. The result is a forgiving, immersive experience that encourages longer, more productive sessions at the telescope.\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\u003eA Pure, High-Contrast Optical Path\u003c\/h3\u003e\n\u003cp\u003eThe Delos optical design uses high-index glasses and continuous multi-coatings on every air-to-glass surface to maximize light throughput and suppress internal reflections. This engineering delivers a neutral, high-fidelity image with dark sky backgrounds, allowing subtle planetary details and faint stellar companions to become visible. The color rendition is true to life, without the warm or cool tint introduced by lesser eyepieces.\u003c\/p\u003e\n\u003cp\u003eOn a target like Jupiter, this translates to seeing delicate festoons and small ovals within the cloud belts, not just the primary bands themselves. The high contrast makes it easier to discern the Cassini Division in Saturn's rings, even on nights of average seeing. This is not just a sharp eyepiece; it is a transparent window to the target.\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\u003eThe Freedom of 20mm Eye Relief\u003c\/h3\u003e\n\u003cp\u003eHigh-power eyepieces are traditionally associated with tight, uncomfortable eye relief, forcing you to press your eye against the lens. The Delos 4.5mm breaks this rule by providing a constant 20mm of eye relief, a specification typically found only in low-power eyepieces. This design choice provides a relaxed, spacious view, which is a significant advantage for eyeglass wearers who can now see the entire field of view without removing their glasses.\u003c\/p\u003e\n\u003cp\u003eThis long eye relief also benefits observers who do not wear glasses. It eliminates the feeling of being \"crowded\" by the eyepiece, reducing fatigue and making it easier to hold a steady view for extended periods. This is particularly valuable when studying fine details that require patience and concentration, such as tracking shadow transits across a planetary disk.\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\u003eThe Lockable Eyeguard and Consistent Performance\u003c\/h3\u003e\n\u003cp\u003eTo manage the long eye relief and prevent blackouts, the Delos features an innovative adjustable and lockable eyeguard. By simply twisting the housing, you can raise the soft rubber eyeguard to the exact height that positions your eye perfectly, then lock it in place. This ensures you get the same comfortable, full-field view every time you come to the eyepiece, without needing to hunt for the right position.\u003c\/p\u003e\n\u003cp\u003eThis mechanism is a practical workflow improvement. It saves time and frustration, especially when sharing the telescope with others or when switching between eyepieces. Once you find your perfect setting, it remains fixed, making the eyepiece feel like a custom-fit instrument for your eye.\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\u003eAn Immersive 72° Apparent Field\u003c\/h3\u003e\n\u003cp\u003eThe 72° apparent field of view strikes a deliberate balance between a wide, immersive experience and optical purity. While not as expansive as an 82° or 100° field, the 72° frame is wide enough to feel like a \"porthole\" view, yet it allows the optical design to maintain exceptional sharpness and contrast right to the very edge of the field stop. There is no pincushion or barrel distortion, so straight lines remain straight as you pan across the lunar terminator.\u003c\/p\u003e\n\u003cp\u003eThis well-corrected field is a significant asset for planetary and lunar observers. When tracking a planet at high power, the object drifts across a consistently sharp field, giving you more time to study details before needing to adjust the mount. On a small planetary nebula like the Ring Nebula (M57), the 4.5mm Delos in a long-focus refractor will frame the nebula beautifully against a dark background, with surrounding field stars remaining perfect points.\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\u003eSuperior Contrast from Barrel to Baffle\u003c\/h3\u003e\n\u003cp\u003eTele Vue's commitment to contrast extends beyond the optics. The 1.25\" barrel is machined with a tapered undercut on the barrel, which provides a more secure connection than simple safety grooves and prevents the eyepiece from accidentally falling out of the focuser. Internally, the eyepiece features flat-blackened lens edges and baffles that are strategically placed to trap any stray light that might otherwise reduce contrast and wash out faint details.\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\u003eObserve Without Glasses with Dioptrx Compatibility\u003c\/h3\u003e\n\u003cp\u003eFor observers with astigmatism, the Delos series is fully compatible with Tele Vue's Dioptrx correctors. The top of the eyepiece is threaded to accept a Dioptrx unit, which replaces the need for eyeglasses at the telescope. This creates a direct optical path from the eyepiece to your eye, eliminating the extra reflections and potential misalignments of wearing glasses and resulting in a sharper, higher-contrast 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\u003eA Note on Seeing Conditions\u003c\/h3\u003e\n\u003cp\u003eThe Delos 4.5mm is a high-magnification instrument, and its performance is directly tied to the stability of the Earth's atmosphere. While its optical quality is superb, it cannot see through poor \"seeing.\" On nights of atmospheric turbulence, the view may appear soft or shimmering. However, its forgiving eye relief and high contrast mean that during fleeting moments of steady air, the details that snap into focus will be rendered with exceptional clarity.\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\u003eChoosing Your High-Power Eyepiece: Delos vs. Nagler\u003c\/h3\u003e\n\u003cp\u003eWhen considering a high-power eyepiece, many observers weigh the Delos against the Nagler series. The choice comes down to your primary observing style.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTele Vue Delos 4.5mm:\u003c\/strong\u003e You prioritize comfort, eye relief, and the highest possible contrast for detailed planetary and double-star work. You wear glasses or simply want a more relaxed, less critical viewing experience without sacrificing optical sharpness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTele Vue Nagler Type 6 5mm:\u003c\/strong\u003e You want the most immersive, \"spacewalk\" experience possible and are willing to trade some eye relief for a wider 82° field of view. This is often the choice for observers who want to frame objects within a larger context, such as globular clusters or small nebulae.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Delos 4.5mm good for a beginner?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it is a premium eyepiece, its long eye relief and forgiving nature make it much easier to use than traditional high-power eyepieces. For a beginner with a quality telescope who wants to specialize in lunar and planetary observing, it can be an excellent long-term investment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this eyepiece work well with my f\/5 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Delos line is well-corrected for fast telescopes. In an f\/5 system, the 4.5mm Delos will deliver sharp stars across the field. You will also need a coma corrector like the Tele Vue Paracorr Type 2 to achieve the best performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Delos 4.5mm compare to a 4mm planetary eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Delos 4.5mm offers a significantly wider 72° apparent field and much more comfortable eye relief than typical 4mm Orthoscopic or Plössl eyepieces. While those designs are very sharp, the Delos provides a more immersive and comfortable experience for extended viewing sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I choose the 4.5mm Delos over the 3.5mm Delos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 4.5mm provides lower magnification, which is usable on more nights of average atmospheric seeing. The 3.5mm Delos requires very stable seeing conditions to perform at its best and is a more specialized tool for nights of exceptional atmospheric stability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the locking eyeguard for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe long 20mm eye relief means your eye needs to be positioned at a specific distance from the lens to see the whole field without blackouts. The locking eyeguard lets you set this position perfectly for your eye (with or without glasses) and lock it there, so you get a perfect view every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use Dioptrx with the Delos 4.5mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Delos line is designed to be compatible with Tele Vue's Dioptrx astigmatism correctors. This allows you to observe without your glasses and achieve a perfectly sharp focus.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eEDL-04.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e4.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View (AFOV)\u003c\/td\u003e\n\u003ctd\u003e72°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e5.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.2 oz (0.45 lbs \/ 204 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1.9\" D x 3.6\" H (48mm x 91mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDioptrx Compatible\u003c\/td\u003e\n\u003ctd\u003eYes\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 Delos 4.5mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Delos_4.5mm_Eyepiece_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\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223879024925,"sku":"TV-EDL-04.5","price":613.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Delos_4.5mm_Eyepiece_1.jpg?v=1777515020"},{"product_id":"tele-vue-delos-3-5mm-72-degree-eyepiece","title":"Tele Vue Delos 3.5mm 72° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 3.5mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 72°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 20mm\u003c\/li\u003e\n\u003cli\u003eParfocal: Yes, with most Tele Vue 1.25\" eyepieces\u003c\/li\u003e\n\u003cli\u003eFilter Threads: 1.25\" Standard\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\u003eHigh-Power Views Without Compromise: The Delos 3.5mm Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Delos 3.5mm 72° Eyepiece is an optical instrument designed for high-magnification planetary, lunar, and double-star observation, delivering a wide field of view without sacrificing contrast, sharpness, or viewing comfort. It combines a generous 72° apparent field with long eye relief, creating an immersive experience that feels natural and unconstrained, even at extreme magnifications. For the observer who refuses to choose between a wide, engaging view and pure, high-fidelity planetary detail, the Delos 3.5mm is a definitive solution.\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\u003eThe 72° Apparent Field of View\u003c\/h3\u003e\n\u003cp\u003eThe Delos optical design achieves a 72° apparent field of view, creating a viewing window that feels expansive and immersive. This wide field provides a significant advantage at high power, allowing you to track a planet across the field for longer periods on a non-driven or manually guided mount. The optical correction is maintained to the very edge of the field, ensuring stars remain sharp points and planetary limbs are free of distracting distortion or color fringing, a key performance trait for a high-power 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\u003eHigh-Contrast Optical System\u003c\/h3\u003e\n\u003cp\u003eTele Vue utilizes high-index glass elements and applies full multi-coatings to every air-to-glass surface in the Delos 3.5mm. This meticulous approach minimizes scattered light and maximizes throughput, which is critical for discerning low-contrast details at high magnification. The practical result is a darker background sky, which makes subtle features like Jupiter's faint festoons, the delicate crepe ring of Saturn, or minute tonal variations in Martian albedo features more readily visible. The blackened lens edges further enhance this effect by absorbing stray light that would otherwise reduce image contrast.\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 Locking Eyeguard and Consistent Eye Relief\u003c\/h3\u003e\n\u003cp\u003eA core feature of the Delos line is its adjustable, locking eyeguard, paired with a constant 20mm of eye relief across all focal lengths. This system allows you to set the perfect distance between your eye and the top lens, then lock it in place. This provides a stable, repeatable viewing position night after night, eliminating distracting \"blackouts\" or kidney-beaning effects. For observers who wear glasses to correct for astigmatism, the long eye relief ensures you can see the entire 72° field of view comfortably without removing them.\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\u003eParfocal Design for Seamless Transitions\u003c\/h3\u003e\n\u003cp\u003eThe Delos 3.5mm is designed to be nearly parfocal with other Tele Vue 1.25\" eyepieces, including other Delos, Plössls, and Panoptics. This means that when you switch from a lower-power Tele Vue eyepiece to the 3.5mm Delos for a closer look, you will need to make only a minimal adjustment to the focuser. This workflow benefit keeps your target centered and saves valuable time, especially when observing conditions are changing or you are trying to catch a moment of perfect seeing.\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\u003eThe High-Magnification Experience\u003c\/h3\u003e\n\u003cp\u003eIn a quality 4-inch apochromatic refractor under steady skies, the 3.5mm Delos delivers magnifications in the 200-250x range, ideal for planetary observation. As your eye settles on Jupiter, the view is not just a magnified disk but a detailed globe. You can trace the fine, thread-like structures within the main equatorial belts and watch for transit events of the Galilean moons, whose tiny disks are cleanly resolved against the planet's clouds. The generous field means the planet drifts slowly through the view, allowing you to study features without constant nudging of the telescope.\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\u003eA Note on Atmospheric Seeing\u003c\/h3\u003e\n\u003cp\u003eThe primary limitation of any high-power eyepiece is the Earth's atmosphere. At the magnification levels the 3.5mm Delos provides, excellent atmospheric \"seeing\" is required to realize its full potential. On nights of poor seeing, the image will appear soft or shimmering, a condition no eyepiece can correct. Therefore, this is a special-purpose eyepiece you reach for when the air is steady and you want to push your telescope to its resolution limit on the brightest targets.\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\u003eChoosing Your High-Power Tele Vue Eyepiece\u003c\/h3\u003e\n\u003cp\u003eTele Vue offers several eyepiece lines that deliver high magnification. The choice depends on the observer's priorities.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelos 3.5mm vs. Nagler Type 6 3.5mm:\u003c\/strong\u003e The Nagler offers a wider 82° apparent field, creating a more dramatic \"spacewalk\" effect. However, the Delos provides significantly more eye relief (20mm vs. 12mm), making it the superior choice for eyeglass wearers and many observers who find the longer eye relief more comfortable for extended planetary study.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelos 3.5mm vs. DeLite 3mm\/4mm:\u003c\/strong\u003e The DeLite series is smaller, lighter, and more affordable, with a 62° apparent field. The Delos is the choice for observers who want the most immersive high-power view possible while retaining long eye relief. The DeLite is for those who prioritize portability and lower cost while still demanding excellent optical quality and comfort.\u003c\/li\u003e\n\u003c\/ul\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\"\u003eIs the Delos 3.5mm good for observers who wear glasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. With 20mm of eye relief, the Delos 3.5mm allows most eyeglass wearers to see the full 72° field of view. The adjustable eyeguard helps you find the perfect distance for comfortable viewing with or without glasses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescope is best suited for the 3.5mm Delos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis eyepiece is ideal for telescopes with focal lengths of 700mm or longer, such as apochromatic refractors, Schmidt-Cassegrains, and Maksutov-Cassegrains. It requires excellent atmospheric conditions to perform at its best due to the high magnification it provides.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Delos 3.5mm compare to a Nagler 3.5mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Nagler has a wider 82° field, while the Delos has a 72° field but offers much longer and more comfortable eye relief (20mm vs 12mm). For planetary viewing, many observers prefer the comfort of the Delos, while deep-sky observers might prefer the wider field of the Nagler.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this eyepiece work on a very fast Dobsonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but it will provide extremely high magnification that may exceed what the atmospheric seeing or the telescope's optics can support. It will perform best when used with a Paracorr to correct for coma inherent in fast Newtonian reflectors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the main trade-off with the Delos 3.5mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts main limitation is its dependence on steady atmospheric seeing. The high power it delivers will magnify any atmospheric turbulence, so it can only be used to its full potential on nights of good to excellent seeing. It is not an all-purpose, every-night eyepiece.\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\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eTV-EDL-03.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e3.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View (AFOV)\u003c\/td\u003e\n\u003ctd\u003e72°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.4 oz \/ 209 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e4.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes, with Tele Vue Group \"A\" eyepieces\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 Delos 3.5mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Delos_3.5mm_Eyepiece_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":51223879057693,"sku":"TV-EDL-03.5","price":613.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Delos_3.5mm_Eyepiece_1.jpg?v=1777515020"},{"product_id":"tele-vue-nagler-t4-22mm-82-degree-eyepiece-2-inch","title":"Tele Vue Nagler T4 22mm 82° Eyepiece - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 22mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 82°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 2-inch\u003c\/li\u003e\n\u003cli\u003eEye Relief: 19mm\u003c\/li\u003e\n\u003cli\u003eField Stop Diameter: 31.1mm\u003c\/li\u003e\n\u003cli\u003eParacorr Type 2 Optimized\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\u003eManual\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\u003eThe Deep-Sky Spacewalk: A 22mm Nagler Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Nagler T4 22mm 82° Eyepiece is a definitive low-power, wide-field eyepiece designed for observers seeking the most immersive views possible from their telescopes. It delivers a vast, corrected window on the universe that feels less like looking through an instrument and more like floating in space. For owners of Dobsonian reflectors, Schmidt-Cassegrains, and large refractors, the 22mm Nagler provides the perfect balance of magnification and true field for sweeping the Milky Way and framing large deep-sky objects.\u003c\/p\u003e\n\u003cp\u003eThis eyepiece isn't simply about providing a wide view; it's about ensuring that view is sharp, contrasty, and comfortable from edge to edge. Every element of its design, from the glass to the coatings to the mechanical housing, is engineered to remove distractions and connect you directly to the target. It's the eyepiece you reach for when you want to see an object in its full galactic context.\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\u003eThe Nagler Type 4 Optical Engine\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the 22mm Nagler is the Type 4 optical design, a sophisticated arrangement of high-index glass that corrects for aberrations like astigmatism and field curvature. This means stars remain sharp points not just in the center, but across the entire expansive 82° field. The result is a flat, distortion-free canvas that allows you to explore the full view without chasing focus or losing detail at the periphery.\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\u003eAn 82° Apparent Field of View\u003c\/h3\u003e\n\u003cp\u003eThe 82° apparent field of view is the signature of the Nagler design, creating the famous \"spacewalk\" effect. This is not a gimmick. By filling your peripheral vision, the eyepiece removes the sense of a boundary, allowing your eye to relax and scan the starfield naturally. When viewing the Veil Nebula or the Andromeda Galaxy, this immersive presentation lets you trace faint structures and outlying star clusters in a single, cohesive 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\u003eFully Multi-Coated Optics for Maximum Contrast\u003c\/h3\u003e\n\u003cp\u003eEvery glass-to-air surface in the 22mm Nagler T4 receives multiple layers of anti-reflective coatings. This meticulous process maximizes light transmission, which is critical for observing faint deep-sky objects. The direct visual benefit is a darker sky background and enhanced contrast, allowing the delicate tendrils of nebulosity and the faint arms of galaxies to stand out against the void.\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 with the Insta-just Eyeguard\u003c\/h3\u003e\n\u003cp\u003eA generous 19mm of eye relief makes the 22mm Nagler comfortable for all observers, including those who wear eyeglasses. To make this long eye relief perfectly usable, Tele Vue developed the Insta-just eyeguard. This click-stop mechanism lets you instantly set and lock the eyeguard height, ensuring your eye is positioned at the ideal distance to see the full field of view without blackouts or stray light interference, night after night.\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\u003eOptimized for Fast Reflectors with Paracorr\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T4 design is specifically engineered to work as a system with the Tele Vue Paracorr Type 2 coma corrector. Owners of fast Newtonians and Dobsonians (f\/5 or faster) can achieve tack-sharp stars across the entire 82° field, correcting the coma inherent in their telescope's optics. This synergy turns a fast reflector into an uncompromising wide-field instrument, delivering views that are as sharp at the edge as they are in the center.\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\u003eRobust Mechanical Design and Safety\u003c\/h3\u003e\n\u003cp\u003eThe eyepiece is built for a lifetime of use in the field. A textured rubber grip ensures secure handling, even with gloves on, while the 2-inch barrel features a machined undercut, or safety kerf. This groove gives your focuser's set screw a positive lock, significantly reducing the risk of the heavy eyepiece accidentally slipping out and falling.\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\u003eA Window on the Cygnus Loop\u003c\/h3\u003e\n\u003cp\u003eIn a 12-inch f\/5 Dobsonian with a quality O-III filter, the 22mm Nagler T4 transforms the Cygnus Loop. At this focal length, the magnification is low enough to frame either the Eastern or Western Veil in its entirety. As your eye adapts, the nebula resolves from a ghostly arc into a complex, three-dimensional network of filaments. The sharp, wide field allows you to follow the delicate, intertwined strands against a dark background, providing a sense of scale and structure that higher magnifications miss.\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\u003eConsiderations and Trade-Offs\u003c\/h3\u003e\n\u003cp\u003eThe optical performance of the 22mm Nagler T4 is accompanied by significant size and weight. Observers using smaller equatorial mounts will need to ensure their system is properly counterbalanced. Furthermore, while the eyepiece performs well in any telescope, achieving its full potential in reflectors faster than f\/6 requires pairing it with a Paracorr, which represents an additional investment in the optical train.\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\u003eChoosing Your Wide-Field Nagler\u003c\/h3\u003e\n\u003cp\u003eThe Tele Vue Nagler family offers several options for immersive, low-power viewing. The 22mm T4 occupies a crucial sweet spot.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler 16mm T5:\u003c\/strong\u003e The 16mm provides a step up in magnification and a darker sky background, making it a better choice for resolving detail in smaller galaxies or planetary nebulae. The 22mm T4 offers a wider true field of view, making it the superior choice for scanning and observing very large objects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler 31mm T5:\u003c\/strong\u003e The 31mm is the ultimate low-power eyepiece, delivering the widest possible true field in the 82° series. However, it is substantially larger, heavier, and more expensive. The 22mm T4 provides a similarly immersive experience in a more manageable and affordable package, making it a more practical choice for many observers and telescope systems.\u003c\/li\u003e\n\u003c\/ul\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\"\u003eDo I need a Paracorr for the 22mm Nagler T4?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf your telescope is a Newtonian or Dobsonian reflector with a focal ratio of f\/5 or faster, using a Paracorr Type 2 is highly recommended. It will correct the coma inherent in the telescope, ensuring stars are pinpoint sharp across the entire 82° field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 22mm Nagler a good choice for an SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent choice for Schmidt-Cassegrain and Maksutov-Cassegrain telescopes. It will provide a wide true field of view at low magnification, which is ideal for locating objects and observing large star clusters and nebulae that would otherwise not fit in the view of a shorter focal length eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 22mm Nagler T4 compare to the 17mm Nagler T4?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 22mm Nagler provides lower magnification and a wider true field of view, making it better for large, diffuse objects like the North America Nebula. The 17mm Nagler offers higher magnification, which helps to darken the sky background and provides more resolution for smaller objects like the Ring Nebula or globular clusters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"Type 4\" mean in the Nagler series?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \"Type\" number indicates a specific optical and mechanical design generation within the Nagler series. The Type 4 eyepieces are known for their long eye relief and inclusion of the Insta-just adjustable eyeguard, making them particularly comfortable for all observers, including those who wear glasses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 19mm eye relief on the Nagler T4 comfortable with glasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 19mm of eye relief is very generous and is specifically designed to allow most eyeglass wearers to see the entire 82° field of view comfortably. The adjustable eyeguard helps you find the perfect distance for your specific glasses.\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 SKU\u003c\/td\u003e\n\u003ctd\u003eTV-EN4-22.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e19mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e31.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.2 lbs (1 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e5.25\" x 2.7\" dia.\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 Nagler T4 22mm 82° 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Nagler_Type_4_22mm_Eyepiece_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":51223879090461,"sku":"TV-EN4-22.0","price":771.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Nagler_T4_22mm_Eyepiece_1.jpg?v=1777515025"},{"product_id":"tele-vue-nagler-t5-16mm-82-degree-eyepiece","title":"Tele Vue Nagler T5 16mm 82° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 16mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 82°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 10mm\u003c\/li\u003e\n\u003cli\u003eField Stop: 17.4mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.45 lbs (204g)\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\u003eManuals\/Downloads\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\u003eThe Spacewalk View in a Compact Form Factor\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Nagler T5 16mm 82° Eyepiece delivers the signature, immersive \"spacewalk\" experience in a compact and lightweight 1.25\" format. This eyepiece is engineered for observers who demand expansive, sharp-to-the-edge views but are constrained by the size, weight, or focuser limitations of larger 2\" eyepieces. It represents a critical mid-power focal length, ideal for framing detailed globular clusters, planetary nebulae, and galaxy groups in a wide, dark field.\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\u003eNagler Type 5 Optical Design: Wide-Field Correction\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the 16mm Nagler is a 6-element optical design that manages the complex corrections required for an 82° apparent field. This design controls for aberrations like coma and astigmatism, which would otherwise stretch stars into unflattering shapes at the edge of the field in fast telescopes. The result is a flat, sharp field where stars remain tight points from the center to the edge, preserving the natural appearance of star clusters and rich fields.\u003c\/p\u003e\n\u003cp\u003eThis level of correction is what separates a Nagler from simpler wide-field designs. It ensures that the immersive quality of the view isn't compromised by distracting distortions. The observer's eye can relax and roam across the entire field, trusting that the view at the edge is as faithful as the view in the center.\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\u003eThe 82° Apparent Field of View Experience\u003c\/h3\u003e\n\u003cp\u003eThe 82° apparent field of view (AFOV) is the defining feature of the Nagler family. This geometry is so wide that the edge of the field is not immediately visible to the relaxed eye, creating the sensation of looking through a window into space rather than looking through an eyepiece. This effect makes objects feel suspended in a vast, black background, enhancing the context and scale of deep-sky targets.\u003c\/p\u003e\n\u003cp\u003eWith the 16mm focal length in a telescope with a 1200mm focal length, for example, the Ring Nebula (M57) is framed perfectly at 75x magnification. You see not just the nebula itself, but the surrounding star patterns and the faint foreground stars within the ring, all presented in a single, cohesive view that feels like a porthole on a spacecraft.\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\u003eMaximum Contrast from Multi-Coated Optics\u003c\/h3\u003e\n\u003cp\u003eEvery air-to-glass surface in the Nagler T5 16mm receives a robust, multi-layer anti-reflective coating. This is not a trivial detail. These coatings are tuned to maximize light throughput at critical wavelengths and to suppress internal reflections that manifest as ghosting and flare, which can wash out faint detail.\u003c\/p\u003e\n\u003cp\u003eThe practical benefit is a view with higher contrast and darker sky backgrounds. Faint extensions on galaxies or delicate wisps of nebulosity stand out more clearly against the blackness of space. When observing a bright object like Jupiter, these coatings mean you see crisp detail in the cloud bands without a distracting halo of scattered light.\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\u003eComfort and Usability: Eye Relief and Mechanics\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T5 series features a 10mm eye relief, which is a key trade-off for its compact size. While comfortable for many observers, it can be tight for those who must wear eyeglasses to correct for significant astigmatism. The adjustable rubber eyeguard helps you find the optimal eye position to see the full field of view and blocks stray light from the side, improving perceived contrast.\u003c\/p\u003e\n\u003cp\u003eThe physical construction is designed for confident handling in the dark. A textured rubber grip ring provides a secure hold, while the chrome-plated 1.25\" barrel resists wear and includes a safety undercut to prevent it from accidentally slipping out of the focuser. The barrel is also threaded to accept standard 1.25\" astronomy filters.\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\u003eParfocal Design for an Efficient Workflow\u003c\/h3\u003e\n\u003cp\u003eThis eyepiece is designed to be nearly parfocal with other Tele Vue eyepieces in the 1.25\" family, such as Plössls, Panoptics, and Delos models. This means that when you switch from another eyepiece in this group to the 16mm Nagler, you will need to make only a minimal adjustment to the focuser. This is a significant workflow advantage during an observing session.\u003c\/p\u003e\n\u003cp\u003eThis design feature saves valuable time at the telescope, keeping your target centered and in near-focus as you change magnifications. This allows you to quickly compare views at different image scales without the frustrating process of having to completely re-acquire and refocus the object each time you swap eyepieces.\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\u003eChoosing Your Nagler: The 16mm T5 vs. Siblings\u003c\/h3\u003e\n\u003cp\u003eThe Nagler eyepiece family offers several choices, and selecting the right one depends on your telescope and observing goals.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler 13mm T6:\u003c\/strong\u003e The 13mm T6 is even smaller and lighter, with a longer 12mm eye relief, making it slightly more comfortable for eyeglass wearers. The 16mm T5, however, provides a wider true field of view and a larger exit pupil, making it a better choice for framing larger objects or for use in telescopes with longer focal lengths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler 22mm T4 (2\"):\u003c\/strong\u003e The 22mm T4 is a 2\" eyepiece that delivers a significantly wider true field of view, making it a superior choice for sweeping large nebulae or finding objects. The 16mm T5 is the right choice when your telescope has a 1.25\" only focuser, or when you need the higher magnification and darker sky background it provides for resolving details in smaller targets.\u003c\/li\u003e\n\u003c\/ul\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\"\u003eIs the 16mm Nagler T5 good for someone who wears glasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 10mm eye relief is considered short for eyeglass wearers. While some may be able to see most of the field, those with significant astigmatism who cannot remove their glasses may find it difficult to see the full 82° view. For better eye relief, consider the Tele Vue Delos line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the best use for the 16mm Nagler T5 eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis eyepiece excels at medium-power, wide-field views of deep-sky objects. It is ideal for resolving the cores of globular clusters like M13, framing medium-sized open clusters, and observing planetary nebulae and smaller galaxies with their surrounding star fields.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this eyepiece work well in my fast f\/4.5 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, Nagler eyepieces are specifically designed to deliver sharp, well-corrected views in fast telescopes. A Paracorr Type 2 coma corrector is still recommended to achieve the sharpest possible stars across the entire field, but the eyepiece itself performs very well in fast systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 16mm Nagler T5 compare to the 17.3mm Delos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 17.3mm Delos offers a smaller 72° apparent field but has a much more comfortable 20mm of eye relief, making it a better choice for eyeglass wearers. The Nagler T5 provides a more immersive, \"spacewalk\" feeling due to its wider 82° field, but at the cost of shorter eye relief.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"parfocal\" mean for this eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt means the 16mm Nagler T5 requires little to no refocusing when you switch it with most other 1.25\" Tele Vue eyepieces (like Panoptics or Plössls). This saves time and makes it easier to change magnifications without losing your target.\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 SKU\u003c\/td\u003e\n\u003ctd\u003eTV-EN5-16.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e16mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View (AFOV)\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNagler Type 5 (6 elements in 4 groups)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e17.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eYes (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes, with Tele Vue Group B eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 lbs \/ 7.2 oz \/ 204 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e3.1\" \/ 79mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Diameter\u003c\/td\u003e\n\u003ctd\u003e1.9\" \/ 48mm\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 Nagler T5 16mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Top Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Bottom Dust Cap\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_Nagler_Type_5_16mm_Eyepiece_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":51223879123229,"sku":"TV-EN5-16.0","price":585.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Nagler_T5_16mm_Eyepiece_1.jpg?v=1777515025"},{"product_id":"tele-vue-nagler-t6-9mm-82-degree-eyepiece","title":"Tele Vue Nagler T6 9mm 82° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 9mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 82°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 12mm\u003c\/li\u003e\n\u003cli\u003eOptical Elements: 7\u003c\/li\u003e\n\u003cli\u003eWeight: 0.45 lbs \/ 204 g\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\u003eManuals\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003c!-- TAB-MARKER-1: DESCRIPTION --\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\u003eThe Spacewalk View in a Compact Barrel: The 9mm Nagler T6 Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Nagler T6 9mm is an 82° wide-field eyepiece that delivers the famous \"spacewalk\" viewing experience in a compact and lightweight 1.25\" format. It is engineered for observers who demand immersive, high-contrast views at a useful medium-high magnification without the weight and balance challenges of larger 2\" eyepieces. This makes it an ideal choice for planetary detail, tight double stars, and resolving globular clusters in any telescope.\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\u003eThe Seven-Element Nagler Optical Engine\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the 9mm T6 is Al Nagler's renowned seven-element optical design. This specific arrangement of lenses, including high-index glass, is what makes the 82° apparent field possible while controlling for aberrations like astigmatism and field curvature, even in fast f\/ratio telescopes. The result is an image that presents sharp, point-like stars across the majority of the expansive field of view.\u003c\/p\u003e\n\u003cp\u003eThis level of correction means you can study objects for longer without constantly re-centering them. When observing the core of the Hercules Globular Cluster (M13), individual stars resolve into sharp pinpricks not just in the center, but deep into the surrounding field, creating a true sense of immersion that simpler designs cannot match.\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\u003eAn Immersive 82° Apparent Field of View\u003c\/h3\u003e\n\u003cp\u003eThe 82° apparent field of view is the defining feature of the Nagler experience. This wide vista fills your eye's field of perception, causing the eyepiece body to effectively disappear. The effect is less like looking through a telescope and more like looking out of a window into space, which is why it earned the \"spacewalk\" nickname.\u003c\/p\u003e\n\u003cp\u003eOn a target like the Orion Nebula (M42), the 9mm focal length in a moderately-sized Dobsonian provides enough magnification to resolve the Trapezium stars cleanly, while the 82° field is wide enough to frame the surrounding nebulosity. This allows you to see the object within its greater context, a quality often lost with narrow-field planetary eyepieces.\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\u003eContrast-Optimized Coatings and Baffling\u003c\/h3\u003e\n\u003cp\u003eEvery air-to-glass surface in the Nagler T6 is fully multi-coated to maximize light throughput and prevent ghosting or flare. Furthermore, the lens edges are meticulously blackened to absorb stray light that would otherwise reduce contrast. This attention to internal reflection control is critical for teasing out faint details.\u003c\/p\u003e\n\u003cp\u003eWhen observing a bright object like Jupiter, these features directly translate to seeing more subtle detail. You will find it easier to distinguish between faint cloud belts and pick out low-contrast ovals and festoons. The background sky remains truly black, making the planet's disk appear to float in space with enhanced definition.\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\u003ePractical Ergonomics and Eye Relief\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T6 series was designed to be parfocal, meaning you should need little to no refocusing when switching between different focal lengths in the series. The 9mm model provides 12mm of eye relief, which is comfortable for most observers who do not require eyeglasses. A soft, fold-down rubber eyeguard helps position the eye correctly and blocks stray light from the side.\u003c\/p\u003e\n\u003cp\u003eThe main trade-off for its compact size and wide field is the eye relief. Observers who must wear glasses to correct for significant astigmatism may not be able to see the entire 82° field at once. For those users, the Tele Vue Delos line, with its 20mm of eye relief, would be a more suitable choice, though it offers a smaller 72° apparent field.\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\u003eA Versatile 1.25\" Barrel Design\u003c\/h3\u003e\n\u003cp\u003eThe standard 1.25\" barrel makes the Nagler T6 9mm compatible with virtually any telescope, from small refractors to large Dobsonians. It includes standard 1.25\" filter threads for use with nebula or planetary filters. A machined undercut on the barrel helps secure the eyepiece in focusers with compression rings or thumbscrews, reducing the risk of it accidentally slipping out.\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\u003eChoosing Your Nagler T6 Magnification\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T6 series offers a range of focal lengths designed to work together as a system. The 9mm hits a sweet spot for many observers, providing a significant step up in magnification from a typical low-power eyepiece.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNagler T6 13mm:\u003c\/strong\u003e The next step down in magnification, ideal for framing larger deep-sky objects or for use on nights with less-than-perfect seeing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNagler T6 9mm:\u003c\/strong\u003e The subject of this page, this is often the go-to choice for globular clusters, planetary nebulae, and detailed views of Jupiter and Saturn.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNagler T6 7mm:\u003c\/strong\u003e A higher-power option for nights of good seeing when you want to push magnification on planets, the moon, or for splitting tight double stars.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor an observer with an 8\" f\/6 Dobsonian, the 9mm T6 yields 133x, a perfect magnification for resolving the core of M13 or seeing detail in Saturn's rings, including the Cassini Division. It provides a noticeable jump in image scale without being so powerful that it is often unusable due to atmospheric turbulence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c!-- TAB-MARKER-2: FAQ --\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Nagler T6 9mm good for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is an excellent choice for planetary viewing. The high-contrast optics reveal subtle cloud belt details on Jupiter and fine divisions in Saturn's rings, while the 82° field provides a comfortable and immersive viewing experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I be able to see the whole 82° field with glasses on?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 12mm of eye relief is tight for most eyeglass wearers. While you can use it with glasses, you will likely not be able to see the full 82° field of view at once. For comfortable viewing with glasses, consider the Tele Vue Delos or DeLite series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Nagler T6 9mm compare to the Nagler T5 9mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Nagler T6 series is smaller, lighter, and parfocal, making it more convenient to switch between different T6 eyepieces. The optical performance is very similar, with the T6 line being the more modern and compact design choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this eyepiece good for a fast Dobsonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Nagler eyepieces are specifically designed to deliver sharp stars to the edge of the field in fast (f\/4 to f\/5) telescopes. For the best performance in very fast Newtonians, it should be used with a Tele Vue Paracorr coma corrector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the difference between a Nagler and a Plössl eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA Nagler eyepiece uses a complex 7-element design to provide a very wide 82° apparent field of view with good edge correction. A Plössl uses a simpler 4-element design, resulting in a narrower field of view (around 50°) but often at a lower cost.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to get the whole Nagler T6 set?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, each eyepiece stands on its own. The 9mm is a very popular and useful single focal length for medium-to-high power observing. The benefit of the set is that the eyepieces are parfocal, minimizing refocusing time when you switch between them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c!-- TAB-MARKER-3: SPECIFICATIONS --\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct SKU\u003c\/td\u003e\n\u003ctd\u003eTV-EN6-09.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e7 elements in 4 groups (Nagler)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e12.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003e1.25\" Standard (M28.5 x 0.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes, with other Nagler Type 6 eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 lbs (204 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e3.2 in (81.3 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Diameter\u003c\/td\u003e\n\u003ctd\u003e1.9 in (48.3 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003c!-- TAB-MARKER-4: IN THE BOX --\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 Nagler T6 9mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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\u003c!-- TAB-MARKER-5: MANUAL --\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_Nagler_Type_6_9mm_Eyepiece_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\u003c!-- TAB-MARKER-6: WARRANTY --\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":51223879155997,"sku":"TV-EN6-09.0","price":533.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Nagler_T6_9mm_Eyepiece_1.jpg?v=1777515026"},{"product_id":"tele-vue-nagler-t6-7mm-82-degree-eyepiece","title":"Tele Vue Nagler T6 7mm 82° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 7mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 82°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 12mm\u003c\/li\u003e\n\u003cli\u003eOptical Elements: 7\u003c\/li\u003e\n\u003cli\u003eWeight: 0.45 lbs \/ 204 g\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\u003eManuals\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\u003eThe Spacewalk Experience in a Compact Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Nagler T6 7mm 82° Eyepiece delivers the celebrated \"spacewalk\" view in a compact and lightweight 1.25\" format. This high-magnification eyepiece is engineered for observers using any telescope, but its performance shines in fast Dobsonians and refractors where its advanced optical correction provides sharp, high-contrast planetary and deep-sky views across its entire expansive field.\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\u003eThe Nagler Type 6 Optical Engine\u003c\/h3\u003e\n\u003cp\u003eAt the heart of this eyepiece is the 7-element Nagler Type 6 design, a significant evolution of the original \"spacewalk\" concept. This specific optical formula is designed to deliver a consistently sharp, flat 82° apparent field of view with excellent control over pupil-induced aberrations. The result for you is an immersive viewing window where stars remain tight points from the center all the way to the field stop.\u003c\/p\u003e\n\u003cp\u003eThis level of correction makes the 7mm Nagler T6 a powerful tool for planetary observation and for resolving fine detail in smaller deep-sky objects. On a target like the Orion Nebula's Trapezium, the four primary stars resolve into hard, brilliant diamonds, while the surrounding nebulosity fills your entire field of vision without distortion, creating a sense of total immersion.\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\u003eHigh-Index Glass and Full Multi-Coatings\u003c\/h3\u003e\n\u003cp\u003eTele Vue utilizes specialized high-index glass to achieve the demanding light-bending requirements of the Nagler design within a small physical package. This choice of materials allows for superior control of chromatic aberration, meaning you see the target's true color without distracting false-color fringing, even on bright objects like Jupiter or the lunar limb.\u003c\/p\u003e\n\u003cp\u003eEvery air-to-glass surface receives a robust multi-coating optimized for maximum light throughput. This ensures the image you see is as bright and contrasty as possible. Faint details, like the spiral arms in the Whirlpool Galaxy or subtle banding on Saturn, are rendered with more clarity because less light is lost to reflection and scatter within the 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\u003eComfort and Control with the Instadjust Eyeguard\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T6 series features Tele Vue's Instadjust eyeguard, a crucial ergonomic component for enjoying the wide field. This click-stop mechanism lets you set and hold the perfect distance between your eye and the top lens, which is essential for seeing the entire 82° field comfortably, especially if you wear eyeglasses for astigmatism.\u003c\/p\u003e\n\u003cp\u003eBy extending the eyeguard, you can effectively block stray light from your surroundings from interfering with your view. This simple adjustment improves perceived contrast and allows your eye to become fully dark-adapted, making it easier to pick out faint details that might otherwise be lost in ambient light.\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\u003eParfocal Design for Seamless Viewing\u003c\/h3\u003e\n\u003cp\u003eThe 7mm Nagler T6 is designed to be nearly parfocal with most other Tele Vue 1.25\" eyepieces, including Plössls, Panoptics, and Delos models. This means that when you switch from a lower-power Tele Vue eyepiece to the 7mm Nagler, you will only need a minimal turn of the focus knob to restore a sharp image.\u003c\/p\u003e\n\u003cp\u003eThis practical feature saves valuable observing time and reduces frustration. You can move from finding an object with a low-power Panoptic to magnifying it with the 7mm Nagler without losing the object from the field of view while refocusing, creating a more fluid and uninterrupted observing session.\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\u003eBuilt for the Field\u003c\/h3\u003e\n\u003cp\u003eThe 1.25\" barrel is a universal format, ensuring compatibility with virtually any telescope focuser or diagonal. A machined safety undercut on the barrel helps prevent the eyepiece from accidentally slipping out of the focuser if the locking screw loosens, protecting your investment.\u003c\/p\u003e\n\u003cp\u003eInside, the edges of all seven lens elements are blackened. This is a critical manufacturing step that absorbs stray light traveling sideways through the glass, preventing internal reflections that can reduce contrast. This attention to detail is a key reason why the background sky in a Nagler eyepiece appears truly black, making stars and nebulae stand out more vividly.\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\u003eChoosing Your High-Power Nagler\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T6 series offers a range of high-magnification options. The 7mm Nagler occupies a sweet spot for many observers, providing a significant power jump without pushing magnification beyond what typical atmospheric seeing allows.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler T6 5mm:\u003c\/strong\u003e The 5mm provides higher magnification for nights of exceptional seeing, ideal for resolving double stars or planetary detail. The 7mm offers a wider exit pupil, making it more comfortable for general use and more forgiving on nights with average atmospheric stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler T6 9mm:\u003c\/strong\u003e The 9mm offers a wider true field of view and is an excellent choice for viewing moderately sized open clusters and brighter nebulae. The 7mm provides the extra power needed to resolve globular cluster cores or get a closer view of planetary features like Jupiter's Great Red Spot.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Nagler T6 7mm good for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is an excellent planetary eyepiece. Its sharp optics and 82° field of view allow you to comfortably observe a planet at high magnification while letting it drift across the field for a long time before needing to adjust the telescope, which is especially useful with non-driven mounts like Dobsonians.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Nagler T6 7mm compare to a Delos 6mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Nagler T6 7mm offers a wider 82° apparent field of view for a more immersive \"spacewalk\" feel. The Delos 6mm has a smaller 72° field but provides a longer, more comfortable 20mm of eye relief. If you wear glasses or prioritize eye comfort, the Delos is often the better choice; if maximum field of view is your goal, the Nagler is the one to get.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this eyepiece work well in my f\/5 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The Nagler design is specifically corrected to perform well in \"fast\" optical systems like f\/4 to f\/5 Newtonians. It will deliver sharp stars across the entire field of view where simpler eyepiece designs would show significant astigmatism or coma away from the center.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main trade-off with the Nagler T6 series?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary trade-off for the compact size and wide 82° field is the eye relief, which is 12mm for this model. While usable for many, observers who require thick eyeglasses for astigmatism may find it difficult to see the entire field of view at once and might be better served by a Delos eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a Paracorr with the 7mm Nagler?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf you are using a fast Newtonian telescope (f\/5 or faster), a Paracorr is highly recommended. The Paracorr corrects coma inherent in the telescope's mirror, not the eyepiece. Using a Nagler with a Paracorr will ensure the sharpest possible stars across the entire 82° field.\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 SKU\u003c\/td\u003e\n\u003ctd\u003eTV-EN6-07.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View (AFOV)\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElements\/Groups\u003c\/td\u003e\n\u003ctd\u003e7\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 lbs \/ 204 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop\u003c\/td\u003e\n\u003ctd\u003e9.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal Group\u003c\/td\u003e\n\u003ctd\u003eGroup B\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 Nagler T6 7mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEyepiece Dust Cap (Top)\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEyepiece Barrel Cap (Bottom)\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_Nagler_Type_6_7mm_Eyepiece_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\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223879188765,"sku":"TV-EN6-07.0","price":533.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Nagler_T6_7mm_Eyepiece_1.jpg?v=1777515026"},{"product_id":"tele-vue-nagler-t6-5mm-82-degree-eyepiece","title":"Tele Vue Nagler T6 5mm 82° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 5mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 82°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 12mm\u003c\/li\u003e\n\u003cli\u003eOptical Design: Nagler Type 6 (7 elements)\u003c\/li\u003e\n\u003cli\u003eWeight: 7.2 oz (0.20 kg)\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\u003eThe Planetary Powerhouse Nagler Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Nagler T6 5mm 82° Eyepiece is a high-magnification specialist, designed to deliver expansive, sharp views of planets and small deep-sky objects in a compact 1.25\" format. It leverages the renowned Nagler design to create an immersive \"spacewalk\" experience, transforming high-power observing from a keyhole view into a wide, engaging window on the universe. This eyepiece is for the observer who refuses to sacrifice field of view for magnification.\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\u003eNagler Type 6 Optical Design for High Power\u003c\/h3\u003e\n\u003cp\u003eThe 5mm Nagler T6 is built on a 7-element optical design that controls aberrations like astigmatism and field curvature, even at this demanding focal length. Using a unique pairing of high-index glasses, this design delivers sharp, high-contrast images from the center to the edge of the field. The result is a flat, well-corrected view that allows you to study fine planetary detail without constant re-centering.\u003c\/p\u003e\n\u003cp\u003eThis level of correction is what separates the Nagler from simpler wide-field designs. When you use the 5mm in a quality telescope, planetary limbs are sharp, and stars in the tight cores of globular clusters resolve into distinct points. It’s an optical system engineered to handle the high magnifications needed for detailed lunar and planetary work.\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\u003eFully Multi-Coated for Maximum Contrast\u003c\/h3\u003e\n\u003cp\u003eEvery air-to-glass surface in the 5mm Nagler T6 receives a robust multi-coating optimized for maximum light throughput and minimal scatter. At high magnifications, where targets are often dim and subtle details are critical, this is not a luxury. The coatings ensure that the faint festoons in Jupiter's belts or the delicate Cassini Division in Saturn's rings are rendered with as much contrast as your telescope and seeing conditions will allow.\u003c\/p\u003e\n\u003cp\u003eThe lens edges are also blackened to further suppress internal reflections. This attention to detail reduces stray light, which enhances the perceived blackness of the space background. This makes faint objects, like the central stars of planetary nebulae, easier to detect against the sky.\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\u003eThe 82° Spacewalk Experience\u003c\/h3\u003e\n\u003cp\u003eThe signature feature of any Nagler is the 82° apparent field of view. At the high power a 5mm focal length provides, this wide field is transformative. Instead of a narrow, restrictive view of a planet, you see the target suspended in a wide, black field of space, allowing you to observe for longer periods without the object drifting out of sight. This makes for a more relaxed and immersive session.\u003c\/p\u003e\n\u003cp\u003eOn a target like the globular cluster M13, the 5mm Nagler provides enough power to resolve the core while the 82° field frames the cluster beautifully. The experience is less like looking *at* an object and more like being *in* the starfield. This is the core of the \"spacewalk\" effect that made the Nagler design famous.\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\u003eConsistent Eye Relief and Viewing Comfort\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T6 series was designed with a consistent 12mm of eye relief across all focal lengths. This means you can switch between them without having to significantly change your head position. The 5mm model features an adjustable rubber eyeguard that you can raise to set the perfect distance, which is crucial for blocking stray light and maintaining a stable view.\u003c\/p\u003e\n\u003cp\u003eWhile 12mm of eye relief is not enough for observers who must wear glasses to correct for significant astigmatism, it is comfortable for most users. The design provides a generous eye lens, making the eyepiece feel less constricted than typical high-power oculars. This eyepiece is also compatible with Tele Vue's DIOPTRX astigmatism correctors.\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\u003eStandard 1.25\" Barrel and Filter Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe 5mm Nagler T6 uses a standard 1.25\" barrel, making it compatible with the vast majority of telescopes and focusers. The barrel is threaded to accept standard 1.25\" filters, a vital feature for planetary observers who rely on color filters to enhance specific details, like Mars's polar caps or Jupiter's Great Red Spot. The barrel also features a safety undercut to help prevent it from accidentally falling out of the focuser.\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\u003eSmall Form Factor for Easy Balancing\u003c\/h3\u003e\n\u003cp\u003eUnlike many extreme wide-field eyepieces, the Nagler T6 series is intentionally compact and lightweight. The 5mm model weighs only 7.2 ounces, which means it won’t cause significant balance issues when used in smaller refractors or on Dobsonians. Its size also means it is nearly parfocal with Tele Vue's Plössl eyepieces, minimizing the amount of refocusing needed when switching between low-power finding and high-power observing.\u003c\/p\u003e\n\u003cp\u003eThis makes the 5mm T6 an excellent choice for a \"grab-and-go\" kit. It provides the performance of a much larger eyepiece in a package that doesn't demand a heavy-duty mount or extensive counterweighting. It is a limitation, however, that the compact size contributes to its shorter eye relief compared to larger eyepieces like the Delos series.\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\u003eObserving with the Nagler T6 5mm\u003c\/h3\u003e\n\u003cp\u003eOn a night of steady seeing, place the 5mm Nagler T6 in a quality 8-inch Schmidt-Cassegrain telescope for a magnification of 406x. Center on Saturn. The planet and its rings fill a pleasing portion of the 82° field, leaving ample black space around them. As your eye settles, the Cassini Division snaps into focus as a sharp, dark line tracing the ansae.\u003c\/p\u003e\n\u003cp\u003eYou can hold the view for long stretches, watching the subtle banding on the planet's globe without the need to nudge the telescope constantly. The wide field makes tracking effortless, even on a manual mount. This is where the Nagler design proves its worth, combining high-power planetary reach with the comfort of a wide-field 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\u003eChoosing Your High-Power Nagler\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T6 series offers several high-power options. The 5mm is often the right choice when you need a significant step up in magnification for planetary viewing or splitting tight double stars.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler T6 7mm:\u003c\/strong\u003e The 7mm is an excellent all-around high-power eyepiece, but the 5mm provides a 40% increase in magnification. When seeing conditions are good, the 5mm will reveal finer detail on Jupiter and Saturn that the 7mm may only hint at. The 7mm is more forgiving on nights of average seeing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler T6 3.5mm:\u003c\/strong\u003e The 3.5mm pushes magnification to the limit for most telescopes and atmospheric conditions. The 5mm is a more versatile choice, hitting the sweet spot for high-power observing on more nights of the year. The 3.5mm is a specialist tool for exceptional seeing or for use with shorter focal length telescopes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Nagler T6 5mm good for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is an exceptional planetary eyepiece. Its 5mm focal length provides high magnification, while the 82° field of view makes it easy to track planets without them quickly drifting out of view, offering a more comfortable and immersive experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 5mm Nagler T6 with eyeglasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 12mm eye relief is generally considered too short for comfortable viewing with glasses. Observers with astigmatism can use this eyepiece without glasses by pairing it with a Tele Vue DIOPTRX corrector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Nagler T6 5mm compare to the 5mm Delos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 5mm Delos offers a more comfortable 20mm of eye relief and a slightly smaller 72° field of view. The Nagler T6 is smaller, lighter, and provides the iconic 82° \"spacewalk\" experience. If eye relief is your top priority, choose the Delos; if you want the widest possible field in a compact size, choose the Nagler.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this eyepiece work well in my fast f\/4.5 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Nagler design is well-corrected for fast telescopes. However, to get the sharpest possible stars across the entire 82° field in a very fast Newtonian, it is best used with a coma corrector like the Tele Vue Paracorr Type 2.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main trade-off with the Nagler T6 design?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe main trade-off for its compact size and wide 82° field is the modest 12mm of eye relief. This is a deliberate design choice to keep the eyepiece small and light, but it makes it less suitable for eyeglass wearers compared to other Tele Vue lines.\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 SKU\u003c\/td\u003e\n\u003ctd\u003eTV-EN6-05.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNagler Type 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Elements\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.2 oz \/ 204 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e3.2 in \/ 81 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e7.0mm\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 Nagler T6 5mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Nagler_Type_6_5mm_Eyepiece_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\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223879254301,"sku":"TV-EN6-05.0","price":533.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Nagler_T6_5mm_Eyepiece_1.jpg?v=1777515026"},{"product_id":"tele-vue-nagler-t6-3-5mm-82-degree-eyepiece","title":"Tele Vue Nagler T6 3.5mm 82° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 3.5mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 82°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 12mm\u003c\/li\u003e\n\u003cli\u003eOptical Design: 7 Elements in 4 Groups (Nagler Type 6)\u003c\/li\u003e\n\u003cli\u003eWeight: 0.45 lbs \/ 204 g\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\u003eThe Planetary Powerhouse: Tele Vue Nagler T6 3.5mm Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Nagler T6 3.5mm 82° Eyepiece is a specialized high-magnification instrument designed to deliver expansive, sharp views of the solar system's most challenging targets. It leverages the renowned Nagler design to fit a wide 82° apparent field into a compact 1.25\" barrel, providing a \"spacewalk\" experience at magnifications that reveal fine planetary detail, split tight double stars, and resolve globular clusters to their core.\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\u003eNagler Type 6 Optical Design for High-Power Views\u003c\/h3\u003e\n\u003cp\u003eThe 3.5mm Nagler T6 uses a sophisticated 7-element optical layout to achieve its signature 82° apparent field of view. This design corrects for aberrations like astigmatism and field curvature, which are often pronounced at the high magnifications this eyepiece produces. The result is a sharp, flat field where stars remain pinpoints from the center to the very edge, allowing you to use the entire view with confidence.\u003c\/p\u003e\n\u003cp\u003eUnlike simpler designs that force you to keep targets perfectly centered, the Nagler's correction gives you the freedom to let objects drift across the wide field. This is particularly useful for planetary observing on a Dobsonian mount, as it extends the time between nudges and creates a more comfortable, immersive session. The compact physical size also means it works well in binoviewers or on smaller, balanced telescopes.\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\u003eContrast-Optimized Coatings for Faint Detail\u003c\/h3\u003e\n\u003cp\u003eEvery air-to-glass surface in the Nagler T6 is fully multi-coated, and the lens edges are blackened to minimize internal reflections. This level of stray light control is critical at high power, where maximizing contrast is the key to seeing subtle features. The high-transmission coatings ensure that the maximum amount of light from the objective reaches your eye, producing a bright, neutral image.\u003c\/p\u003e\n\u003cp\u003eOn a target like Jupiter, this translates to seeing more delicate festoons and swirls within the main cloud belts and better definition in the Great Red Spot. For lunar observers, it means picking out tiny craterlets and rilles along the terminator, where the interplay of light and shadow reveals the finest surface textures. The lack of scattered light creates a clean, dark background that makes faint objects \"pop\" into 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\u003eEngineered for High Magnification Comfort\u003c\/h3\u003e\n\u003cp\u003eHigh-power eyepieces are often difficult to look through, but the 3.5mm Nagler T6 is designed for usability. It features 12mm of eye relief, a comfortable distance for observers who do not wear glasses. This fixed eye relief is consistent across the Nagler T6 line, making the transition between different magnifications feel familiar and intuitive.\u003c\/p\u003e\n\u003cp\u003eTo ensure proper eye placement, which is crucial for seeing the full 82° field, the eyepiece includes an adjustable eyeguard. You can raise, lower, and lock the soft rubber eyeguard to the perfect height, which helps block stray light from your surroundings and maintain a steady viewing position. This small ergonomic feature significantly improves comfort during long observing sessions.\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\u003eThe Right Tool for Resolving Demanding Targets\u003c\/h3\u003e\n\u003cp\u003eWith its 3.5mm focal length, this eyepiece is built for nights of good atmospheric seeing. In a telescope with a 1000mm focal length, it yields 286x magnification, a power level ideal for resolving the Cassini Division in Saturn's rings or teasing apart the components of the Double-Double star system in Lyra. The wide field of view provides a generous canvas for these objects, making them feel suspended in space rather than cramped in a narrow field.\u003c\/p\u003e\n\u003cp\u003eThe true strength of this eyepiece is revealed when viewing a bright globular cluster like M13. At this magnification, the dense core begins to resolve into a spray of individual stars against a black background. The experience is like flying into the cluster's center, an effect made possible only by the combination of high power and a wide, well-corrected apparent field.\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\u003eParfocal Design for Seamless Magnification Changes\u003c\/h3\u003e\n\u003cp\u003eThe entire Nagler Type 6 series, from 3.5mm to 13mm, is designed to be nearly parfocal. This means you can switch from the 13mm to the 9mm, and then to the 3.5mm, with little to no refocusing required. This is a significant workflow advantage in the field, as it saves time and preserves your dark adaptation by minimizing interaction with the focuser.\u003c\/p\u003e\n\u003cp\u003eThis feature is a testament to the system-level thinking behind the Tele Vue eyepiece lineup. It encourages you to use your eyepieces as a cohesive set, starting wide to locate a target with a lower-power eyepiece and then stepping up in magnification to study it in detail, all without the distraction of major focus adjustments.\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\u003eLimitations and Ideal Use Cases for the 3.5mm Nagler T6\u003c\/h3\u003e\n\u003cp\u003eThis is a specialist's eyepiece, not an all-arounder. Its performance is highly dependent on atmospheric conditions. On nights of poor seeing, the high magnification will simply magnify the turbulence, resulting in a blurry, shimmering view. For this reason, it is best paired with lower-power eyepieces to have options for different conditions.\u003c\/p\u003e\n\u003cp\u003eFurthermore, the 12mm of eye relief is not sufficient for observers who need to wear glasses to correct for astigmatism. While Tele Vue's DIOPTRX is an option, those requiring glasses for viewing will be better served by the Delos line, which offers a longer 20mm of eye relief. The Nagler T6 3.5mm is the right choice when atmospheric seeing is steady and you need maximum resolving power on bright, small targets.\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\u003eComparative Perspective: Nagler T6 vs. Other Tele Vue Eyepieces\u003c\/h3\u003e\n\u003cp\u003eChoosing a high-power eyepiece involves trade-offs between field of view, eye relief, and complexity. Here is how the 3.5mm Nagler T6 fits into the Tele Vue family.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Delos 3.5mm:\u003c\/strong\u003e The Delos offers a much longer 20mm of eye relief, making it the clear choice for observers who must wear glasses. However, it has a smaller 72° apparent field of view compared to the Nagler's 82°. The choice is between the more comfortable view of the Delos or the more immersive, \"spacewalk\" field of the Nagler.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler Zoom 3-6mm:\u003c\/strong\u003e The Nagler Zoom provides the convenience of multiple focal lengths in one eyepiece. However, its apparent field of view is only 50°, significantly narrower than the fixed 3.5mm Nagler's 82°. The T6 is for observers who prioritize the expansive field over the flexibility of a zoom.\u003c\/li\u003e\n\u003c\/ul\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\"\u003eIs the Nagler T6 3.5mm good for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is an exceptional choice for planetary viewing on nights of good atmospheric seeing. The high magnification reveals fine details on Jupiter, Saturn, and Mars, while the 82° field provides a comfortable and immersive viewing experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Nagler T6 3.5mm with eyeglasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 12mm of eye relief is generally insufficient for observing with glasses. For a high-power eyepiece that accommodates eyeglasses, consider the Tele Vue Delos line, which offers 20mm of eye relief.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the difference between a Nagler Type 5 and Type 6?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Nagler Type 6 series was designed to be smaller, lighter, and have more eye relief than the original Type 5 designs of similar focal lengths. Both deliver the signature 82° Nagler field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this eyepiece work well with my f\/5 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Nagler design is well-corrected for fast optical systems like f\/5 Dobsonians. It will maintain sharp star images across the entire field of view, even at the edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a Barlow lens with this eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor most telescopes, the 3.5mm focal length provides very high magnification on its own. A Barlow lens would likely push the magnification beyond what atmospheric conditions or your telescope's optics can support, resulting in a dim, blurry image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 3.5mm Nagler T6 parfocal with other eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is designed to be parfocal with the other eyepieces in the Nagler Type 6 family (13mm, 9mm, 7mm, 5mm). This means you can switch between them with little to no need to refocus your telescope.\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 SKU\u003c\/td\u003e\n\u003ctd\u003eTV-EN6-03.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e3.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View (AFOV)\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e7 elements in 4 groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e4.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 lbs \/ 204 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e3.2 in \/ 81.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes, with Nagler T6 series\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 Nagler T6 3.5mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Nagler_Type_6_3.5mm_Eyepiece_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":51223879385373,"sku":"TV-EN6-03.5","price":533.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Nagler_T6_3.5mm_Eyepiece_1.jpg?v=1777515026"},{"product_id":"tele-vue-nagler-t7-19mm-82-degree-eyepiece","title":"Tele Vue Nagler T7 19mm 82° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 19mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 82°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 12mm\u003c\/li\u003e\n\u003cli\u003eOptical Elements: 7\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\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\u003eA Spacewalk View of the Deep Sky: The Tele Vue Nagler T7 19mm Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Nagler T7 19mm is an 82° wide-field eyepiece engineered to deliver immersive, high-contrast views of large deep-sky objects. This eyepiece provides a generous swath of sky at a useful medium power, making it a foundational piece for observers who want to frame entire star clusters and nebulae within a single, expansive field.\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\u003eThe 82° Nagler Apparent Field\u003c\/h3\u003e\n\u003cp\u003eThe defining feature of any Nagler is the 82° apparent field of view. This is the angle of the window you look through, and at 82°, it is wide enough to engage your peripheral vision. The practical effect is that the boundary of the eyepiece seems to vanish, creating the celebrated \"spacewalk\" sensation of being suspended in front of the target.\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\u003eA Corrected View from Center to Edge\u003c\/h3\u003e\n\u003cp\u003eAchieving a sharp, flat field across such a wide expanse requires a sophisticated optical design. The Nagler T7 19mm uses a seven-element lens configuration to control aberrations like field curvature and astigmatism. This means that stars resolve into tight points not just in the center, but far out toward the edge of the view, maintaining the integrity of star fields and clusters.\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\u003eMaximizing Contrast and Light Throughput\u003c\/h3\u003e\n\u003cp\u003eEvery air-to-glass surface in the Nagler T7 19mm is fully multi-coated to minimize reflections and maximize light transmission. Tele Vue complements this with blackened lens edges, a critical step that absorbs stray light traveling sideways through the glass. The combination of these two sub-systems produces a tangibly darker background sky, making faint nebulosity and the subtle dust lanes in galaxies stand out more clearly.\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\u003eOptimized for Fast Reflectors with Paracorr\u003c\/h3\u003e\n\u003cp\u003eOwners of fast Newtonian and Dobsonian telescopes (typically f\/5 or faster) will find this eyepiece is an ideal partner for the Tele Vue Paracorr coma corrector. The Nagler optical design is specifically calculated to work with the Paracorr, which corrects the comet-shaped stars inherent at the edge of field in parabolic mirrors. The result is a field of sharp, round stars across the entire 82° view, unlocking the full potential of your instrument.\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\u003eTuning the Eyepiece to Your Eye\u003c\/h3\u003e\n\u003cp\u003eComfort and performance are enhanced by a soft, adjustable rubber eyeguard that can be raised or lowered to provide the ideal eye position and block distracting ambient light. For observers with astigmatism, the top of the eyepiece is threaded to accept the Tele Vue DIOPTRX corrector. This allows you to observe without your glasses, seeing the sharpest possible stars your telescope can deliver.\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\u003eFraming the North America Nebula\u003c\/h3\u003e\n\u003cp\u003eIn a telescope with a focal length around 1200mm, the 19mm Nagler provides about 63x magnification and a true field of over 1.3 degrees. This is the perfect scale to frame the sprawling North America Nebula (NGC 7000). The eyepiece is wide enough to capture the prominent \"Cygnus Wall\" and the dark \"Gulf of Mexico\" dust lane in a single, high-contrast view, turning a familiar object into an immersive landscape.\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\u003eAn Honest Limitation: Eye Relief\u003c\/h3\u003e\n\u003cp\u003eThe primary trade-off for the Nagler's compact form and incredibly wide, corrected field is its eye relief, which is specified at 12mm. While perfectly comfortable for many observers, those who must wear eyeglasses with thick lenses to correct for significant astigmatism may find it difficult to see the entire 82° field at once. This is a deliberate design choice that prioritizes the immersive view and sharpness over long eye relief.\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\u003eChoosing Your 19mm Eyepiece: A Tele Vue Comparison\u003c\/h3\u003e\n\u003cp\u003eTele Vue offers several eyepieces around this focal length, each representing a different set of design priorities. Understanding the trade-offs helps you select the right one for your observing style.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Tele Vue Panoptic 19mm:\u003c\/strong\u003e The 19mm Panoptic offers a still-generous 68° apparent field but with a longer 13mm of eye relief, a lighter build, and a lower price. It's the right choice if you prioritize comfort for eyeglass use or want a more compact wide-field eyepiece, but it does not provide the same \"spacewalk\" immersion as the Nagler.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Tele Vue Ethos 21mm:\u003c\/strong\u003e The 21mm Ethos represents the next step up, with a colossal 100° apparent field. It shows a significantly larger true field of view than the Nagler, but it is a much larger, heavier, and more expensive 2-inch eyepiece. The 19mm Nagler offers a similar immersive experience in a much more compact and affordable 1.25-inch format.\u003c\/li\u003e\n\u003c\/ul\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\"\u003eIs the Nagler T7 19mm good for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it provides a sharp view, the 19mm focal length generally yields too low a magnification for detailed planetary observation. Observers typically use much shorter focal length eyepieces (like a 5mm or 7mm Nagler) to achieve the high power needed for planets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a Paracorr for this eyepiece with my SCT or refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Paracorr is designed to correct coma, an aberration specific to fast parabolic mirrors used in Newtonian and Dobsonian telescopes. Schmidt-Cassegrains and refractors do not have coma, so a Paracorr is not needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 12mm eye relief on the Nagler 19mm enough for glasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt depends on your glasses and facial structure. 12mm can be tight, and some eyeglass wearers may not be able to see the full 82° field stop. If you have astigmatism, using a Tele Vue DIOPTRX corrector instead of your glasses is the ideal solution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between a Nagler Type 7 and a Nagler Type 6?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \"Type\" designates a specific optical design within the Nagler family. Type 6 Naglers are all short focal length (2.5mm to 13mm) eyepieces with 7 elements. The Type 7 designation is used for the 14mm, 19mm, and 26mm models, which use a different 7-element design optimized for their respective focal lengths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich filters work best with the Nagler 19mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts medium magnification makes it an excellent eyepiece for use with nebula filters. A UHC or O-III filter will significantly enhance contrast on emission nebulae like the Lagoon, Trifid, or Veil Nebula when viewed with the 19mm Nagler.\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 SKU\u003c\/td\u003e\n\u003ctd\u003eTV-EN7-19.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e19mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Elements\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.55 lbs \/ 249 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e21.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003e1.25\" Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParacorr Recommended\u003c\/td\u003e\n\u003ctd\u003eYes, for f\/5.5 or faster scopes\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 Nagler T7 19mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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\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":51223879418141,"sku":"TV-EN7-19.0","price":1012.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Nagler_T7_19mm_Eyepiece_1.jpg?v=1777515026"},{"product_id":"tele-vue-nagler-t7-14mm-82-degree-eyepiece","title":"Tele Vue Nagler T7 14mm 82° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 14mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 82°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 12mm\u003c\/li\u003e\n\u003cli\u003eOptical Elements: 7\u003c\/li\u003e\n\u003cli\u003eWeight: 0.50 lbs \/ 227g\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\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\u003eThe Spacewalk View in a Compact Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Nagler T7 14mm 82° Eyepiece delivers the celebrated \"spacewalk\" viewing experience in a compact and lightweight 1.25\" format. This eyepiece is engineered for observers who demand an expansive, immersive field of view without the size and weight penalty of larger 2\" eyepieces. It serves as a versatile mid-power option for resolving globular clusters, framing planetary nebulae, and exploring lunar landscapes with context.\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\u003eThe 82° Nagler Apparent Field\u003c\/h3\u003e\n\u003cp\u003eThe defining feature of this eyepiece is its 82° apparent field of view, a design pioneered by Al Nagler to replicate the immersive perspective of looking through a spacecraft window. This expansive field eliminates the feeling of looking *through* an instrument, instead creating a sense that you are suspended in space. The 14mm focal length provides a useful medium magnification that makes this immersive effect accessible in a wide variety of telescopes.\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\u003eSeven-Element Optical System with Full Multi-Coatings\u003c\/h3\u003e\n\u003cp\u003eAchieving a sharp, high-contrast 82° field requires a sophisticated optical design. The Nagler T7 14mm uses a seven-element layout that corrects for aberrations like astigmatism and field curvature, ensuring star points remain sharp across the vast majority of the view. Every glass-to-air surface receives Tele Vue's proprietary multi-coatings, which boosts light transmission to over 95% and minimizes reflections for a bright, high-contrast image.\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\u003eInternal Baffling and Blackened Lens Edges\u003c\/h3\u003e\n\u003cp\u003eMaximizing contrast is not just about coatings. This eyepiece incorporates blackened lens edges and internal anti-reflection surfaces to intercept and absorb off-axis stray light. This meticulous internal light control is what produces the Nagler's signature \"black background,\" which makes faint details in nebulae and galaxies stand out more distinctly against the sky.\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\u003eOptimized for Fast Telescopes with Paracorr\u003c\/h3\u003e\n\u003cp\u003eWhile the Nagler T7 performs well in any high-quality telescope, its design is specifically optimized to work with the Tele Vue Paracorr Type 2 coma corrector. In fast Newtonian reflectors (f\/5 or below), this combination delivers tack-sharp star points from the center of the field right to the edge. This synergy makes it a premier choice for Dobsonian users who want to leverage their large aperture for wide-field deep-sky observation.\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\u003eErgonomics and DIOPTRX Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe eyepiece features a fold-down rubber eyeguard that helps you maintain the correct 12mm eye relief and blocks stray light from your surroundings. For observers with astigmatism, the top of the eyepiece is threaded to accept Tele Vue's DIOPTRX correctors. This allows you to dial in your exact prescription, enabling you to observe without wearing glasses and still see the entire 82° field with perfect sharpness.\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\u003eThe View: Resolving M13's Core\u003c\/h3\u003e\n\u003cp\u003eIn a 10-inch f\/5 Dobsonian, the 14mm Nagler provides about 90x magnification, an ideal power for globular clusters. Pointing to the Great Globular Cluster in Hercules, M13, the view is immediately engaging. The cluster doesn't just sit in the field; it fills it, with its outlying stars stretching towards the edges. As your eye settles, the eyepiece's high contrast allows you to resolve countless individual stars deep into the dense core, transforming it from a fuzzy patch into a glittering ball of ancient suns.\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\u003eChoosing Your Nagler: T7 14mm vs. Other Tele Vue Eyepieces\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T7 14mm occupies a specific niche in the Tele Vue lineup. Its primary trade-off is its modest 12mm eye relief, which can be tight for eyeglass wearers. Understanding the alternatives helps clarify its purpose.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Delos 14mm:\u003c\/strong\u003e The Delos offers a smaller 72° field but provides a much more comfortable 20mm of eye relief, making it the better choice for observers who must wear glasses. The Nagler is chosen when the widest possible field of view is the top priority.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler T6 13mm:\u003c\/strong\u003e A very close sibling, the 13mm T6 is even smaller and lighter. The 14mm T7 offers a slightly different magnification step and optical feel that some observers prefer. The choice often comes down to the specific magnification needs of your telescope collection.\u003c\/li\u003e\n\u003c\/ul\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\"\u003eIs the 12mm eye relief on the Nagler 14mm enough for glasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor most eyeglass wearers, 12mm of eye relief is not enough to see the full 82° field of view. If you need to observe with glasses on, the Tele Vue Delos 14mm with its 20mm of eye relief is a better alternative. The Nagler is best for those who can observe without glasses or use DIOPTRX correctors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Nagler T7 14mm perform in a fast Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt performs very well, but for optimal edge-of-field sharpness in scopes f\/5 or faster, it is highly recommended to use it with a Tele Vue Paracorr Type 2. The combination is designed to eliminate coma, providing sharp stars across the entire field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the difference between the Nagler T7 and the older Nagler T2?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Nagler T7 is a more modern design with improved coatings and better correction for aberrations like chromatic aberration and field curvature compared to much older Nagler versions. It provides a higher contrast and sharper view, especially in high-quality telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this a good eyepiece for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the Nagler T7 provides a sharp view, its primary strength is its wide field. For dedicated planetary observation, an eyepiece with simpler optics and a narrower field, like a Tele Vue Plössl or Delos, will often provide slightly higher contrast on subtle planetary details. However, the Nagler is excellent for viewing planets within a wider starfield context.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat filter should I use with the Nagler 14mm for nebulae?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 1.25\" barrel is threaded for standard filters. For emission nebulae like the Orion Nebula or Lagoon Nebula, a good quality UHC (Ultra High Contrast) or OIII (Oxygen-III) filter will dramatically increase contrast and reveal fainter structures.\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 SKU\u003c\/td\u003e\n\u003ctd\u003eTV-EN7-14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e7 elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e19.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.50 lbs \/ 227g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDIOPTRX Compatible\u003c\/td\u003e\n\u003ctd\u003eYes\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 Nagler T7 14mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Top Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Bottom Dust Cap\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\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":51223879450909,"sku":"TV-EN7-14.0","price":958.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Nagler_T7_14mm_Eyepiece_1.jpg?v=1777515026"},{"product_id":"tele-vue-nagler-t7-9mm-82-degree-eyepiece","title":"Tele Vue Nagler T7 9mm 82° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 9mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 82°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 12mm\u003c\/li\u003e\n\u003cli\u003eOptical Design: Nagler Type 7\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\u003eManual\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\u003eThe Spacewalk Experience in a 1.25\" Barrel\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Nagler T7 9mm 82° Eyepiece is a high-magnification, wide-field eyepiece designed to deliver an immersive \"spacewalk\" viewing experience in any telescope. It renders a sharp, expansive 82° apparent field of view that feels like looking through a porthole into space, but in a compact 1.25\" barrel format that is compatible with virtually any instrument. This eyepiece is for the observer who wants the signature Nagler wide-field view for resolving globular clusters, planetary nebulae, and lunar details without needing a 2\" focuser.\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\u003eThe 82° Nagler Apparent Field\u003c\/h3\u003e\n\u003cp\u003eThe defining feature of any Nagler eyepiece is the 82° apparent field of view. This creates a viewing window so large that the edge of the field is often not visible without intentionally moving your eye. The effect is a fully immersive experience where the telescope seems to disappear, leaving you suspended over the target.\u003c\/p\u003e\n\u003cp\u003eOn a target like the Orion Nebula (M42), the 9mm focal length provides enough magnification to resolve the Trapezium stars into sharp points, while the wide field simultaneously frames the surrounding nebulosity. This combination of power and field width allows you to study fine details within a grander context, a capability that narrower-field eyepieces cannot provide.\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\u003eHigh-Contrast, High-Transmission Optics\u003c\/h3\u003e\n\u003cp\u003eTele Vue uses high-index glass elements and applies full multi-coatings to every air-to-glass surface. This maximizes light throughput and minimizes internal reflections, which is critical for a high-magnification eyepiece. The direct visual benefit is a brighter image with higher contrast, allowing you to see fainter stars and more subtle details in nebulae and galaxies.\u003c\/p\u003e\n\u003cp\u003eWhen observing a bright object like Jupiter, the disciplined optical design ensures that light scatter is controlled. This results in a dark background sky right up to the planet's limb, making it easier to see delicate cloud bands and the Galilean moons without being washed out by glare.\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\u003eOptimized for Fast Newtonian Reflectors\u003c\/h3\u003e\n\u003cp\u003eWhile the Nagler T7 9mm performs well in any telescope, it is optically conjugate to Tele Vue's Paracorr coma corrector. This means it is specifically designed to deliver sharp, pinpoint stars to the edge of the field even in \"fast\" f\/4 or f\/5 Newtonian reflectors, which are notoriously demanding on eyepieces. Observers with Dobsonian telescopes will find this eyepiece corrects for coma, delivering a flat, sharp field that makes tracking objects by hand more forgiving.\u003c\/p\u003e\n\u003cp\u003eThe primary trade-off for this exceptional wide-field performance is eye relief. At 12mm, it is sufficient for most observers, but those who must wear thick eyeglasses for astigmatism may not be able to see the entire 82° field at once. This is a deliberate design choice to achieve the compact size and sharp-to-the-edge performance.\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\u003eThe Versatile 1.25\" Barrel Format\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T7 9mm uses a standard 1.25\" barrel, making it a universal fit for the vast majority of telescopes. This format offers significant practical advantages. It is lighter than 2\" eyepieces, which helps with telescope balance, and it can be used in binoviewers for a three-dimensional observing experience that is simply not possible with larger eyepieces.\u003c\/p\u003e\n\u003cp\u003eThis makes the 9mm Nagler an excellent choice for smaller, high-quality refractors where a 2\" diagonal might be too heavy or cumbersome. It delivers the signature Nagler experience without requiring a large and heavy optical train.\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\u003eErgonomics and Viewing Comfort\u003c\/h3\u003e\n\u003cp\u003eThe 12mm of eye relief is managed by a soft, fold-down rubber eyeguard. This helps the observer maintain the correct eye position to see the full field of view and blocks stray light from the side, which improves perceived contrast during deep-sky observation. The barrel features a safety undercut to prevent the eyepiece from accidentally slipping out of the focuser if a thumbscrew comes loose.\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\u003eChoosing Your Nagler Eyepiece\u003c\/h3\u003e\n\u003cp\u003eTele Vue offers several Nagler eyepieces, and selecting the right one depends on your telescope and observing goals.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNagler T7 9mm (This Model):\u003c\/strong\u003e The all-around high-power choice in the 1.25\" format. It offers a balance of magnification for resolving details in globular clusters and planetary nebulae while maintaining the immersive 82° field. It is the go-to for Dobsonian owners seeking a premium, wide-field planetary and deep-sky eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNagler T6 7mm:\u003c\/strong\u003e For when you need more power. The 7mm provides higher magnification for splitting tight double stars or examining details in smaller planetary nebulae. You trade a bit of brightness for a larger image scale, making it ideal for nights of excellent seeing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNagler T4 22mm (2\"):\u003c\/strong\u003e This is a low-power, 2\" format eyepiece for sweeping large star fields and framing entire nebulae. It provides the same 82° experience but at a much lower magnification, serving as a \"finder\" eyepiece in large telescopes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Nagler 9mm work well with my f\/5 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent match. The Nagler design is well-corrected for fast optics. For the sharpest possible views across the entire field, it is recommended to use it with a Tele Vue Paracorr coma corrector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 9mm Nagler with eyeglasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 12mm of eye relief is on the shorter side. While some users with glasses can see most of the field, those with thick lenses for astigmatism may not be able to see the full 82° view. For more comfortable viewing with glasses, consider the Tele Vue Delos line, which offers 20mm of eye relief.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Nagler T7 compare to the older Nagler T6 9mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Type 7 is a newer design that is slightly smaller and lighter than the Type 6. Optically, performance is very similar, with both providing exceptional sharpness and contrast. The main difference is in the physical form factor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this a good eyepiece for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. While it's known for deep-sky, the 9mm Nagler provides high-contrast, sharp views of planets like Jupiter and Saturn. The 82° field gives you a wide, dark background that makes the planet appear to float in space.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the main benefit of the 82° field of view?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 82° field creates an immersive \"spacewalk\" effect where the eyepiece seems to disappear. For non-driven telescopes like Dobsonians, it also means an object stays in the field of view for a longer time before you need to nudge the scope.\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\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eEN7-09.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.2 oz (0.45 lbs \/ 204 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e12.4mm\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 Nagler T7 9mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Nagler_Type_7_9mm_Eyepiece_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\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223879483677,"sku":"TV-EN7-09.0","price":958.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Nagler_T7_9mm_Eyepiece_1.jpg?v=1777515026"},{"product_id":"tele-vue-nagler-t7-5-5mm-82-degree-eyepiece","title":"Tele Vue Nagler T7 5.5mm 82° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 5.5mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 82°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 12mm\u003c\/li\u003e\n\u003cli\u003eOptical Design: Nagler (7 elements)\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\u003eManual\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\u003eThe Spacewalk View, Now in High Power\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Nagler T7 5.5mm 82° eyepiece brings the legendary \"spacewalk\" viewing experience to high-magnification targets. This eyepiece is engineered to deliver an expansive, sharp, and immersive field of view, transforming your observations of planets, double stars, and compact deep-sky objects. It leverages Al Nagler's original wide-field design philosophy to correct for aberrations that plague simpler eyepieces at the edge of the field, especially in fast telescopes.\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\u003eThe Seven-Element Nagler Optical Design\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the 5.5mm Nagler is a seven-element optical configuration. This design is not just about creating a wide field; its primary purpose is to deliver a sharp, flat field by actively correcting for aberrations like coma and astigmatism. For owners of fast Newtonian reflectors or Dobsonians (f\/4 to f\/5), this means stars at the edge of the field remain sharp points, not distracting comets or seagulls.\u003c\/p\u003e\n\u003cp\u003eThis level of correction allows you to use the entire field of view with confidence. You can place a planet at the edge and let it drift across the field without it distorting or losing focus. The result is a more natural and comfortable observing session, as your eye is not forced to concentrate only on the \"sweet spot\" in the center.\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\u003eAn Immersive 82° Apparent Field of View\u003c\/h3\u003e\n\u003cp\u003eThe 82° apparent field of view is the defining characteristic of the Nagler experience. This wide vista fills your eye's natural peripheral vision, creating a sensation of being immersed in the starfield rather than looking through a narrow tube. The effect is that the eyepiece body seems to disappear, leaving only the target suspended in space.\u003c\/p\u003e\n\u003cp\u003eOn a target like the Orion Nebula (M42), the 5.5mm focal length provides the power to resolve the Trapezium star cluster at the core, while the 82° field is wide enough to frame the surrounding nebulosity. This combination of power and field width is difficult to achieve with conventional eyepiece designs and is what makes the Nagler a versatile instrument for both planetary and deep-sky work.\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\u003eMaximizing Contrast with Advanced Coatings\u003c\/h3\u003e\n\u003cp\u003eEvery glass-to-air surface in the Nagler T7 5.5mm is fully multi-coated with Tele Vue's proprietary anti-reflective coatings. This ensures that the maximum amount of light from the telescope reaches your eye, which is critical for observing faint planetary details or teasing out dim stars. The coatings are tuned to provide a neutral color balance, rendering the ruddy tones of Mars or the subtle blues and greens of planetary nebulae accurately.\u003c\/p\u003e\n\u003cp\u003eTo further enhance contrast, the lens edges are meticulously blackened. This absorbs stray light that can bounce between elements, which would otherwise reduce contrast and wash out fine detail. This attention to internal baffling is what gives Tele Vue eyepieces their characteristically high-contrast, \"contrasty\" views, where the background sky appears truly black.\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\u003eHigh Power in a Compact 1.25\" Barrel\u003c\/h3\u003e\n\u003cp\u003eDespite its complex optical design, the 5.5mm Nagler is housed in a compact and lightweight 1.25\" barrel. This makes it compatible with nearly any telescope, from small refractors to large Dobsonians, without causing significant balance issues. The smaller format is particularly useful for binoviewing, where the weight and size of two eyepieces are a primary concern.\u003c\/p\u003e\n\u003cp\u003eThe single biggest trade-off for this compact power is its 12mm of eye relief. While comfortable for many observers, it can be tight for those who must wear eyeglasses to correct for significant astigmatism. For those observers, the Tele Vue Delos line may be a more suitable choice if longer eye relief is the top priority.\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\u003ePractical Observing with the Nagler 5.5mm\u003c\/h3\u003e\n\u003cp\u003eIn a telescope with a 1000mm focal length, this eyepiece yields 182x magnification. Point it at Jupiter on a night of steady seeing, and the view is electric. The 82° field means you can watch the planet and its Galilean moons drift across the eyepiece for a long time before needing to nudge the scope, and the high-contrast optics will resolve distinct cloud bands and, conditions permitting, the Great Red Spot.\u003c\/p\u003e\n\u003cp\u003eMove to a dense globular cluster like M13. The high power resolves the core into a spray of individual stars, while the wide field of view frames it against the dark background sky. This ability to deliver both resolving power and a rich context is what defines the Nagler T7 5.5mm as a premier high-performance 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\u003eA Note on the Nagler T6 vs. T7 Series\u003c\/h3\u003e\n\u003cp\u003eThe Nagler T7 series, which includes this 5.5mm model, is a distinct design from the more numerous T6 series. While both share the Nagler name and 82° field, they are optically different formulas. Observers should not expect this eyepiece to be perfectly parfocal with the T6 line, and minor refocusing will be needed when switching between them.\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\u003eComparative Perspective: Choosing Your Nagler\u003c\/h3\u003e\n\u003cp\u003eWithin the Tele Vue family, the Nagler T7 5.5mm occupies a specific high-power niche.\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler T6 5mm:\u003c\/strong\u003e The 5mm T6 offers slightly more magnification in a very similar physical package. The choice between them often comes down to matching the ideal exit pupil for your specific telescope and typical seeing conditions. The 5.5mm T7 provides a slightly brighter image and a marginally wider true field of view.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Delos 6mm:\u003c\/strong\u003e The 6mm Delos offers a smaller 72° field of view but provides a much more generous 20mm of eye relief, making it the superior choice for eyeglass wearers. If comfort is paramount, the Delos is the answer; if the widest possible immersive field is the goal, the Nagler remains the top choice.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Nagler 5.5mm good for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is an excellent choice for high-power planetary observation. Its sharp optics and high contrast excel at revealing fine details in Jupiter's cloud bands, Saturn's rings, and features on the surface of Mars, provided atmospheric seeing is good.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need a Paracorr with this eyepiece in my Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn fast Dobsonians (f\/5 or faster), a Paracorr is highly recommended. While the Nagler design corrects for many aberrations, adding a Paracorr will ensure the sharpest possible stars across the entire 82° field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Nagler T7 5.5mm compare to the Nagler T6 5mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBoth are top-tier high-power eyepieces. The T7 5.5mm offers a slightly less powerful, brighter view, while the T6 5mm provides a bit more magnification. The choice depends on the specific focal length of your telescope and which magnification falls into your most-used range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 12mm eye relief enough for glasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 12mm of eye relief is generally considered too short for observers who need to wear glasses to correct for astigmatism. For a more comfortable experience with glasses, consider the Tele Vue Delos line, which features 20mm of eye relief.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the best way to clean the Nagler 5.5mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, use a blower bulb to remove any dust or grit. For fingerprints or smudges, use a high-quality optical cleaning fluid and a microfiber cloth. Apply the fluid to the cloth, not directly to the lens, and wipe gently in a circular motion from the center outwards.\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 SKU\u003c\/td\u003e\n\u003ctd\u003eTV-EN7-05.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e5.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNagler (7 elements)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e7.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.2 oz (0.45 lbs \/ 204 g)\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 Nagler T7 5.5mm 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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_Nagler_Type_7_5.5mm_Eyepiece_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\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223879516445,"sku":"TV-EN7-05.5","price":958.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Nagler_T7_5.5mm_Eyepiece_1.jpg?v=1777515026"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/collections\/TeleVue-Logo.jpg?v=1774381271","url":"https:\/\/davidastro.com\/fr\/collections\/televue.oembed?page=2","provider":"David Astro","version":"1.0","type":"link"}