{"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":138.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Plossl-25mm-Eyepiece-1.jpg?v=1775703733","url":"https:\/\/davidastro.com\/fr-int\/products\/televue-plossl-25mm-50-eyepiece","provider":"David Astro","version":"1.0","type":"link"}