{"product_id":"svbony-sv131-12mm-48-plossl-eyepiece-125in","title":"SVBONY SV131 12mm 48° Plössl Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eClassic Plossl Optical Design\u003c\/li\u003e\n\u003cli\u003eFully Multi-Coated (FMC) Optics\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" Barrel with Filter Threads\u003c\/li\u003e\n\u003cli\u003eAll-Metal Construction\u003c\/li\u003e\n\u003cli\u003eBlackened Lens Edges to Reduce Internal Reflections\u003c\/li\u003e\n\u003cli\u003eRubber Anti-Slip Grip\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\u003eSvbony SV131 1.25\" Plossl Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV131 1.25\" Plossl Eyepiece series offers a classic, reliable optical design ideal for a wide range of astronomical viewing. With fully multi-coated optics and blackened lens edges, these eyepieces are engineered to deliver bright, high-contrast images of deep-sky objects like nebulae and star clusters. The standard 1.25-inch barrel is threaded for filters, and the robust all-metal construction ensures durability 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\u003eSV131 Optical System: A High-Contrast Plossl Design\u003c\/h3\u003e\n\u003cp\u003eThe SV131 series uses the proven four-element Plossl optical design, known for providing sharp, well-corrected views. Every air-to-glass surface features true full-bandwidth multi-layer coatings (FMC) to boost light transmission and image brightness. To further improve contrast and eliminate internal reflections that can wash out faint details, the lens edges are carefully blackened.\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 Construction for Reliable Field Use\u003c\/h3\u003e\n\u003cp\u003eBuilt for durability, each Svbony SV131 eyepiece features an all-metal body with a chrome-plated barrel that resists wear. The interior of the barrel is matte-blackened with threading to trap stray light before it reaches the eye. An eco-friendly rubber anti-slip ring provides a secure grip, even with gloves on, preventing accidental drops during cold nights.\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 Standard 1.25\" Filter Threads\u003c\/h3\u003e\n\u003cp\u003eThese eyepieces are designed for comfortable, long observing sessions, offering generous eye relief that helps reduce eye fatigue. The standard 1.25\" barrel format ensures compatibility with virtually any telescope focuser or diagonal. Each eyepiece includes standard M28.5x0.6 filter threads, allowing you to easily attach color planetary filters or light pollution filters to enhance your views.\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 Svbony SV131 Plossl a good choice for deep-sky objects?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003efully multi-coated optics\u003c\/strong\u003e and \u003cstrong\u003eblackened lens edges\u003c\/strong\u003e maximize light transmission and contrast. This makes the Svbony SV131 effective for viewing faint, diffuse objects like galaxies, star clusters such as the Pleiades (M45), and nebulae like the Orion Nebula (M42).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the build quality of the Svbony SV131 eyepiece contribute to observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eall-metal construction\u003c\/strong\u003e provides durability for field use, while the \u003cstrong\u003echrome-plated barrel\u003c\/strong\u003e resists scratches. The \u003cstrong\u003erubber anti-slip grip\u003c\/strong\u003e ensures secure handling, which is especially useful in cold or damp conditions, preventing accidental drops that could damage the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use filters with the Svbony SV131 Plossl eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Each Svbony SV131 eyepiece has a \u003cstrong\u003estandard 1.25-inch barrel\u003c\/strong\u003e that is threaded to accept M28.5x0.6 filters. This allows you to use a wide variety of standard astronomical filters, such as light pollution, color, or nebula filters, to enhance specific details on celestial objects.\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 of a Plossl design like the SV131?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary trade-off for a classic Plossl eyepiece is the apparent field of view, which is typically around 50 degrees. While this provides a sharp and bright image, it is narrower than more complex and expensive wide-field eyepiece designs. However, for many observers, the excellent on-axis sharpness and contrast of a Plossl are preferable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would a longer focal length Svbony SV131 eyepiece perform in my 8-inch f\/6 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA longer focal length SV131, like a 25mm or 40mm model, would provide low magnification and a wide true field of view in your Dobsonian. This makes it an excellent \"finder\" eyepiece for locating objects and for observing large star clusters or extended nebulae like the North American Nebula (NGC 7000) in their entirety.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs a shorter focal length Svbony SV131 eyepiece good for viewing Saturn's rings with a 102mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, a shorter focal length model from the Svbony SV131 series, such as a 6mm or 12mm, would provide higher magnification suitable for planetary viewing. In a 102mm refractor, it would allow you to resolve details like Saturn's rings, the Cassini Division (on nights of good seeing), and Jupiter's main cloud bands and Galilean moons.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSvbony 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861231399197,"sku":"SV-W9101C","price":17.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/davidastro.com\/en-us\/products\/svbony-sv131-12mm-48-plossl-eyepiece-125in","provider":"David Astro","version":"1.0","type":"link"}