{"product_id":"svbony-6mm-66-ultra-wide-angle-eyepiece-125in","title":"SVBONY 6mm 66° Ultra Wide Angle Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e66° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003eAvailable in 6mm, 9mm, 15mm, and 20mm Focal Lengths\u003c\/li\u003e\n\u003cli\u003eFully Multi-Coated Optics\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" Barrel\u003c\/li\u003e\n\u003cli\u003eThreaded for 1.25\" Filters\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\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 1.25\" 66° Ultra Wide Eyepiece\u003c\/h2\u003e\n      \u003cp\u003eThe SVBONY 1.25\" 66° Ultra Wide Eyepiece series, available in 6mm, 9mm, 15mm, and 20mm focal lengths, delivers a dramatically larger viewing area than conventional eyepiece designs. This expanded 66° apparent field creates an immersive, wide-window effect on the sky, allowing you to frame large star clusters and nebulae completely within the standard 1.25\" format.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA 66° Window on the Sky\u003c\/h3\u003e\n      \u003cp\u003eThe key feature of this eyepiece line is the 66° apparent field of view. This represents a significant increase in observable sky compared to the 50-52° field of a typical Plössl eyepiece, without requiring a move to a 2\" focuser. This wider perspective makes it easier to locate objects and appreciate the context of targets like the Andromeda Galaxy (M31) or the Pleiades (M45) against the background starfield.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e1.25” Body with High-Contrast Internals\u003c\/h3\u003e\n      \u003cp\u003eEach eyepiece is built into a durable aluminum 1.25\" barrel that is compatible with virtually any telescope focuser. The interior of the housing is blackened to absorb stray light, preventing internal reflections from reducing image contrast. This ensures a dark background, making faint details on planets or in nebulosity more apparent. The barrel is also threaded to accept standard 1.25\" astronomy filters, allowing you to easily add a moon filter or nebula filter to your setup.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eSVBONY 66° UWA vs. a 52° Plössl Eyepiece\u003c\/h3\u003e\n      \u003cp\u003eCompared to a standard 52° Plössl of the same focal length, the SVBONY 66° eyepiece offers a noticeably more expansive view. While a Plössl is a sharp, high-contrast workhorse, its narrower field can feel restrictive on large deep-sky objects.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eField of View:\u003c\/strong\u003e The SVBONY's 66° field feels more like looking through a porthole than a narrow tube, making observations more engaging.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eObject Framing:\u003c\/strong\u003e The wider field allows you to fit entire open clusters like the Beehive Cluster (M44) into a single view at higher power, something a 52° Plössl might struggle with.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eTrade-Offs:\u003c\/strong\u003e While offering a wider view, budget-friendly ultra-wide eyepieces may exhibit some softness at the very edge of the field in fast (f\/5 or lower) telescopes. This is a common trade-off for achieving the wide-field experience at an accessible price point.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich SVBONY 66° eyepiece is best for planetary viewing on an 8\" f\/10 SCT?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor an 8\" f\/10 SCT with a 2000mm focal length, the \u003cstrong\u003e9mm SVBONY 66° eyepiece\u003c\/strong\u003e would provide 222x magnification, which is an excellent power for viewing details on Jupiter and Saturn. The 6mm eyepiece would yield 333x, which may be too high for average seeing conditions.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 66° field of the SVBONY eyepiece help when observing the Orion Nebula (M42)?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe 66° field of view allows you to see more of the surrounding nebulosity and the \"wings\" of the Orion Nebula (M42) at the same time you are observing the central Trapezium star cluster. A narrower eyepiece would require you to pan around to see the full extent of the object.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the SVBONY 66° eyepiece over a standard Plössl?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe main advantage is the significantly wider \u003cstrong\u003e66° apparent field of view\u003c\/strong\u003e compared to the ~52° field of a Plössl. This provides a more immersive, \"spacewalk\" feeling and makes it easier to frame large celestial objects without having to move the telescope as often.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 1.25\" filters with the SVBONY 66° eyepieces?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The 1.25\" barrel of each SVBONY 66° eyepiece is threaded to accept all standard 1.25\" astronomy filters, such as moon filters, planetary color filters, or light pollution filters.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of optical coatings do the SVBONY 66° eyepieces have?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThese eyepieces feature \u003cstrong\u003efully multi-coated optics\u003c\/strong\u003e. This means that all air-to-glass surfaces have multiple layers of anti-reflection coatings to maximize light transmission and image contrast.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eAre the SVBONY 66° Ultra Wide eyepieces parfocal?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe eyepieces in this series are not guaranteed to be parfocal, meaning you will likely need to make a small focus adjustment when switching between different focal lengths (e.g., from the 20mm to the 9mm).\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Lengths\u003c\/td\u003e\n\u003ctd\u003e6mm, 9mm, 15mm, 20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e66°\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\" (31.7mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLens Structure\u003c\/td\u003e\n\u003ctd\u003eMulti-element\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eStandard 1.25\" Filter Thread (M28.5 x 0.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eSVBONY 1.25\" 66° Ultra Wide Eyepiece\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":52861229564189,"sku":"SV-F9157A","price":45.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-1-25-66-Ultra-Wide-Eyepiece-6-9-15-20mm-Fully-Multi-Coated-1_58cc5998-d724-49e2-b9a3-108f59a54bce.jpg?v=1788659667","url":"https:\/\/davidastro.com\/fr\/products\/svbony-6mm-66-ultra-wide-angle-eyepiece-125in","provider":"David Astro","version":"1.0","type":"link"}