{"product_id":"svbony-4mm-62-aspheric-eyepiece-125in","title":"SVBONY 4mm 62° Aspheric Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eThree Focal Lengths: 4mm, 10mm, and 23mm\u003c\/li\u003e\n\u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003eAspheric Lens Design\u003c\/li\u003e\n\u003cli\u003eFully Multi-Coated Optics\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" Barrel Diameter\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 1.25\" Eyepiece Set with 62° Aspheric Lens (4mm, 10mm, 23mm)\u003c\/h2\u003e\n\u003cp\u003eThis Svbony eyepiece set provides three distinct focal lengths—4mm, 10mm, and 23mm—to cover a full range of magnifications in any telescope with a 1.25\" focuser. Each eyepiece in the set features a 62° aspheric apparent field of view, delivering an immersive, wide-field image that reveals more of the sky than standard kit eyepieces.\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 62° Aspheric Field: A Wider Window on the Sky\u003c\/h3\u003e\n\u003cp\u003eThe 62° apparent field of view offers a noticeably more expansive window compared to traditional 50° Plössl designs, making it easier to frame large deep-sky objects or keep a planet centered at high power. The aspheric lens element helps to correct for spherical aberration, yielding sharper star points across a wider portion of the field than simpler designs in the same price class.\u003c\/p\u003e\n\u003cp\u003eWhile not providing the pinpoint edge-to-edge correction of premium multi-element eyepieces, this design delivers a significant optical upgrade for observers looking for a wide, comfortable view. Fully multi-coated lenses ensure high light transmission and contrast, darkening the sky background and making faint details on the Moon or in nebulae more apparent.\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\u003eFrom 4mm to 23mm: A Complete Magnification Set\u003c\/h3\u003e\n\u003cp\u003eThis set provides three of the most useful focal lengths for any observer, covering low, medium, and high power from a single kit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e23mm Eyepiece:\u003c\/strong\u003e Your low-power scanning eyepiece. Use it to locate objects, view large open star clusters like the Pleiades (M45), or frame the entirety of the Andromeda Galaxy (M31) in smaller telescopes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10mm Eyepiece:\u003c\/strong\u003e The workhorse for medium magnification. This is an ideal focal length for resolving globular clusters like the Hercules Cluster (M13), studying details in the Orion Nebula (M42), or getting a closer look at lunar crater fields.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4mm Eyepiece:\u003c\/strong\u003e The high-power planetary and double-star specialist. When seeing conditions permit, the 4mm provides the magnification needed to resolve Jupiter's cloud bands, the Cassini Division in Saturn's rings, or split tight double stars like Albireo (Beta Cygni).\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 62° eyepiece is best for viewing planets like Jupiter in an 8\" f\/6 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e4mm Svbony 62° Aspheric eyepiece\u003c\/strong\u003e is the best choice for high-power planetary viewing. In an 8\" f\/6 Dobsonian (1200mm focal length), it will yield a magnification of 300x, which is ideal for resolving details like Jupiter's Great Red Spot and cloud bands, provided atmospheric seeing is steady.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the 23mm Svbony eyepiece perform on the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e23mm Svbony 62° eyepiece\u003c\/strong\u003e is excellent for large targets like the Andromeda Galaxy (M31). Its low power and wide 62° field of view will help you frame the full extent of the galaxy's core and faint outer arms, especially in a short focal length refractor or a rich-field Newtonian telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of an aspheric lens in this Svbony eyepiece set?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAn aspheric lens has a complex surface profile that corrects for spherical aberration more effectively than a simple spherical lens. In the Svbony 62° eyepieces, this results in sharper star images across more of the field of view, reducing the distortion you might see at the edges in a basic, low-cost wide-angle eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill these Svbony 1.25\" eyepieces fit my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, if your telescope uses a 1.25\" focuser or diagonal, this Svbony eyepiece set is fully compatible. The 1.25\" barrel is the most common standard for amateur telescopes, including most refractors, reflectors, and Schmidt-Cassegrains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre these Svbony 62° eyepieces good for observers who wear glasses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile eye relief is not specified, eyepieces of this design typically have shorter eye relief, especially at the 4mm focal length. Eyeglass wearers may find it difficult to see the full 62° field of view. The 23mm will be the most comfortable, but for critical observing, you may need to remove your glasses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"fully multi-coated\" mean for the Svbony 62° eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eFully multi-coated\u003c\/strong\u003e means that all air-to-glass surfaces in the eyepiece have multiple layers of anti-reflection coatings applied. This process maximizes light transmission for brighter images and minimizes internal reflections, which improves contrast by reducing glare and ghosting.\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\u003e4mm, 10mm, 23mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\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\u003eLens Design\u003c\/td\u003e\n\u003ctd\u003eAspheric\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\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 Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861230252317,"sku":"SV-F9301AA","price":17.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-1-25-Eyepiece-62-Aspheric-Lens-4-10-23mm-Telescope-HD-1_e181bab2-a0c0-4260-99f3-ed786484f73c.jpg?v=1788659708","url":"https:\/\/davidastro.com\/products\/svbony-4mm-62-aspheric-eyepiece-125in","provider":"David Astro","version":"1.0","type":"link"}