{"product_id":"svbony-sv215-3-8mm-clickstop-zoom-eyepiece-125in","title":"SVBONY SV215 3-8mm Clickstop Zoom Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eVariable Focal Length Zoom Eyepiece\u003c\/li\u003e\n\u003cli\u003eTactile Clickstop Mechanism at Set Magnifications\u003c\/li\u003e\n\u003cli\u003eConstant Apparent Field of View Across Zoom Range\u003c\/li\u003e\n\u003cli\u003eMulti-Coated Optics for High Contrast\u003c\/li\u003e\n\u003cli\u003eOptimized for Planetary and Lunar Observation\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" Barrel Format\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 SV215 1.25\" 3-8mm Clickstop Zoom Eyepiece for Planet View\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV215 Clickstop Zoom Eyepiece consolidates the utility of multiple planetary eyepieces into a single, adaptable unit. Its smooth zoom mechanism allows for seamless magnification changes, letting you adjust your view to match atmospheric seeing conditions instantly. This eyepiece is engineered specifically for detailed solar system observation, with multi-coated optics designed to render sharp, high-contrast images of lunar features and planetary details.\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 SV215: A Constant Field for Seamless Planetary Zooming\u003c\/h3\u003e\n\u003cp\u003eUnlike many zoom eyepieces that exhibit a \"tunnel vision\" effect at one end of their range, the SV215 is designed to maintain a consistent apparent field of view as you change magnification. This parfocal-like characteristic means the view remains immersive and the object stays centered as you zoom in on features like Jupiter's Great Red Spot or the Cassini Division in Saturn's rings. You spend less time re-centering your target and more time observing critical details.\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 SV215: Tactile Feedback with a Clickstop Zoom Mechanism\u003c\/h3\u003e\n\u003cp\u003eThe SV215 incorporates a clickstop zoom mechanism that provides positive, tactile feedback at several precise focal lengths. This feature is invaluable in the dark, as it allows you to change magnification by feel without looking away from the target or using a flashlight. It also enables you to quickly return to a preferred magnification, making it easy to compare views or switch between finding a feature and examining it up close.\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 SV215: High-Contrast Optics for Solar System Targets\u003c\/h3\u003e\n\u003cp\u003eResolving subtle details on planets requires excellent image contrast. The SV215 eyepiece uses multi-coated optical surfaces to maximize light transmission and minimize internal reflections that can wash out faint features. This optical design helps reveal delicate cloud bands on Jupiter, subtle albedo markings on Mars, and the intricate rilles and crater chains on the Moon's surface, delivering views that are sharp and clear.\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 SVBONY SV215's clickstop feature help when observing Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe clickstop feature allows you to make precise, repeatable magnification changes by feel. When observing Jupiter, you can use a lower power setting to frame the planet with its four Galilean moons, then instantly \"click\" to a higher magnification to study the Great Red Spot or individual cloud bands, all without losing your place or needing a light.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV215 a good choice for tracking the Moon's terminator with a Dobsonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent choice. The ability to zoom allows you to start with a wider view to locate a specific crater or rille along the terminator, then increase magnification to study it in high detail as it passes through the field of view. The constant apparent field of view ensures the experience is consistent as you zoom.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of a zoom eyepiece like the SVBONY SV215 over several fixed eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is convenience and speed. The SVBONY SV215 replaces an entire set of planetary eyepieces, eliminating the need to constantly swap them out. This allows you to instantly find the ideal magnification for the current atmospheric \"seeing\" conditions, which can change from moment to moment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the constant field of view on the SVBONY SV215 improve the observing experience?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA constant apparent field of view means the perceived size of the viewing window does not shrink as you increase magnification. This avoids the \"tunnel vision\" effect common in some zoom designs, providing a more immersive and consistent view of your target across the entire zoom range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV215 eyepiece suitable for viewing deep-sky objects?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the SV215 is optimized for the high magnifications used in planetary and lunar viewing, it can also be used for splitting close double stars or observing small, bright planetary nebulae and globular clusters. However, for expansive deep-sky objects like large nebulae and galaxies, a fixed focal length eyepiece with a wider apparent field of view is typically preferred.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of telescope works best with the SVBONY SV215 eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV215 is well-suited for any telescope with a 1.25\" focuser, but it particularly shines in long-focal-ratio instruments like Schmidt-Cassegrains, Maksutov-Cassegrains, and refractors. These telescopes are often used for planetary viewing, and the SV215's focal length range provides the high magnifications needed to see fine detail.\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":52861232185629,"sku":"SV-W9166A","price":154.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV215-1-25-3-8mm-Clickstop-Zoom-Eyepiece-for-Planet-View-1_1b88559c-5161-409c-9b82-587cf6fe0d49.jpg?v=1788659835","url":"https:\/\/davidastro.com\/fr\/products\/svbony-sv215-3-8mm-clickstop-zoom-eyepiece-125in","provider":"David Astro","version":"1.0","type":"link"}