{"title":"Oculaires TeleVue Plössl","description":"\u003cp\u003eLes oculaires TeleVue Plössl reprennent la formule Plössl classique à quatre lentilles et donnent des images propres et contrastées avec un champ apparent de 50° dans un oculaire simple et fiable. La gamme comprend des 20mm, 25mm et 32mm en 1.25\" et un 55mm en 2\".\u003c\/p\u003e\u003cp\u003eLe 40mm à 43° offre un large champ réel au coulant 1.25\". Ces longues focales font de bons oculaires à faible grossissement pour repérer les objets et observer confortablement avec une petite lunette.\u003c\/p\u003e","products":[{"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\u003e6.6 oz (187 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\u003e4.3 oz (122 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\u003e14mm 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\u003e14mm Eye Relief and Mechanical Compatibility\u003c\/h3\u003e\n\u003cp\u003eWith 14mm 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 3.0 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 more eye relief (14mm) than the 19mm Panoptic (13mm). 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 14mm 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\u003e14 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\u003e3.0 oz (85 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"}],"url":"https:\/\/davidastro.com\/fr\/collections\/televue-plossl-eyepieces.oembed","provider":"David Astro","version":"1.0","type":"link"}