{"product_id":"svbony-sv131-6mm-48-plossl-eyepiece-125in","title":"SVBONY SV131 6mm 48° Plössl Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAvailable in 6mm, 12mm, 17mm, 25mm, and 40mm Focal Lengths\u003c\/li\u003e\n\u003cli\u003eClassic 4-Element, 2-Group Plössl Optical Design\u003c\/li\u003e\n\u003cli\u003e1.25\" Barrel Diameter Fits Standard Focusers\u003c\/li\u003e\n\u003cli\u003eFully Multi-Coated (FMC) Optics for Clear Views\u003c\/li\u003e\n\u003cli\u003e19mm Eye Relief for Comfortable Observation\u003c\/li\u003e\n\u003cli\u003eStandard M28.5*0.6 Filter Threads\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 (6\/12\/17\/25\/40mm)\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV131 1.25\" Plössl Eyepiece series offers a significant upgrade over standard kit eyepieces, featuring a classic 4-element, 2-group optical design across its 6mm, 12mm, 17mm, 25mm, and 40mm focal lengths. With a generous 19mm of eye relief and standard M28.5*0.6 threads for 1.25\" filters, these eyepieces are built for comfortable, high-contrast views of a wide range of celestial 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\u003eClassic 4-Element Plössl Optics with Full Multi-Coatings\u003c\/h3\u003e\n\u003cp\u003eThe SV131 series adheres to the time-tested 4-element, 2-group Plössl design, known for delivering sharp, well-corrected images. Svbony enhances this design with True FMC (Fully Multi-Coated) optics, which increases light transmission and reduces internal reflections for brighter, higher-contrast views. The lens edges are also blackened to further minimize stray light and improve image clarity, making them effective for observing faint 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\u003eDurable All-Metal Build with M28.5*0.6 Filter Threads\u003c\/h3\u003e\n\u003cp\u003eUnlike many eyepieces included with beginner telescopes, the SV131 features a full-metal housing with a chrome-plated 1.25\" barrel for durability and a secure fit in your focuser. The barrel is threaded with the standard M28.5*0.6 pitch, allowing you to easily attach any 1.25\" planetary, nebula, or polarizing filter. The interior of the housing is matted to prevent internal reflections from degrading the 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\u003eComfortable Viewing with 19mm of Eye Relief\u003c\/h3\u003e\n\u003cp\u003eA notable feature of the SV131 design is its 19mm of eye relief, which allows you to position your eye at a comfortable distance from the lens without straining to see the full field. This is a significant advantage over many short focal length Plössls that have very tight eye relief. This design reduces eye fatigue during long observing sessions and makes viewing easier for those who wear glasses.\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\u003eSvbony SV131 vs. Standard Kit Eyepieces: A Worthwhile Upgrade\u003c\/h3\u003e\n\u003cp\u003eIf your telescope came with basic Kellner or Huygens eyepieces, the Svbony SV131 Plössl series represents a clear step up in optical and build quality without a premium price tag. The key differences are immediately noticeable at the eyepiece.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical Coatings:\u003c\/strong\u003e Most kit eyepieces are only single-coated or partially coated, leading to dimmer views and more glare. The SV131's Fully Multi-Coated optics deliver visibly brighter and higher-contrast images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild Materials:\u003c\/strong\u003e The all-metal construction of the SV131 is more robust than the plastic bodies of many bundled eyepieces, ensuring longevity and a more solid feel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Baffling:\u003c\/strong\u003e The matte blackened interior and lens edges in the SV131 provide better stray light control, resulting in a darker sky background and making it easier to see faint details.\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\"\u003eWhich Svbony SV131 focal length is best for viewing Saturn with my 6\" f\/8 reflector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor high-power planetary viewing, the \u003cstrong\u003e6mm Svbony SV131\u003c\/strong\u003e is an excellent choice. In a 6\" f\/8 telescope (1200mm focal length), it will provide 200x magnification (1200mm \/ 6mm), which is ideal for resolving details like the Cassini Division in Saturn's rings or cloud bands on Jupiter under good seeing conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 40mm Svbony SV131 to see the entire Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the \u003cstrong\u003e40mm SV131\u003c\/strong\u003e is designed for wide-field views of large deep-sky objects. In most telescopes, it will provide the lowest magnification and widest true field of view in the 1.25\" format, making it perfect for framing the full extent of the Andromeda Galaxy (M31), the Pleiades (M45), or sweeping through the Milky Way.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 4-element, 2-group design of the SV131 Plössl mean for my views?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is the classic Plössl optical formula, consisting of two cemented doublet lenses. It is highly regarded for its excellent on-axis sharpness, good color correction, and high light transmission due to the low number of glass-to-air surfaces. It provides a clean, clear view that is a significant improvement over simpler 2- or 3-element eyepiece designs.\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 SV131 Plössl comfortable for eyeglass wearers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, with \u003cstrong\u003e19mm of eye relief\u003c\/strong\u003e, the SV131 series is generally very comfortable for observers who wear glasses. You should be able to see the entire field of view with your glasses on, which is often not possible with eyepieces that have shorter eye relief (typically under 15mm).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach a 1.25\" filter to the Svbony SV131 eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe bottom of the silver 1.25\" barrel on every Svbony SV131 eyepiece is threaded with standard \u003cstrong\u003eM28.5*0.6 threads\u003c\/strong\u003e. You can simply screw any standard 1.25\" astronomy filter, such as a moon filter or a light pollution filter, directly into these threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the benefits of Fully Multi-Coated (FMC) optics on the SV131?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eFully Multi-Coated (FMC)\u003c\/strong\u003e means that all glass-to-air surfaces have been coated with multiple layers of anti-reflective material. This dramatically increases light transmission to your eye and reduces glare and ghosting from internal reflections. The result is a brighter, sharper, and higher-contrast image compared to eyepieces with single or partial coatings.\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 Lengths\u003c\/td\u003e\n\u003ctd\u003e6mm, 12mm, 17mm, 25mm, 40mm\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\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e4-Element, 2-Group Plössl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\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\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eM28.5 x 0.6 (Standard for 1.25\" filters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Edge Blackening\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eAll-metal\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\"\u003eSV131 1.25\" Plössl Eyepiece (Selected Focal Length)\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\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":52861231235357,"sku":"SV-W9101B","price":19.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV131-1-25-Plossl-Eyepiece-6-12-17-25-40mm-for-Telescope-1_7625733a-c728-4db0-bd8a-2ebc637f6273.jpg?v=1788659733","url":"https:\/\/davidastro.com\/fr\/products\/svbony-sv131-6mm-48-plossl-eyepiece-125in","provider":"David Astro","version":"1.0","type":"link"}