{"title":"Accessoires visuels SVBONY","description":"\u003cp\u003eLes accessoires visuels SVBONY font le lien entre le télescope et l'œil ou le téléphone. Les renvois coudés comprennent les miroirs diélectriques SV223 ClickLock et SV188P en 1.25\" et 2\", ainsi que les prismes à 45° à image redressée SV221 et SV222 pour les longues-vues et l'observation terrestre. Les lentilles de Barlow de 2X à 5X, dont certaines filetées M42 pour une caméra, multiplient le grossissement de chaque oculaire.\u003c\/p\u003e\u003cp\u003eLes adaptateurs SV214 tiennent un téléphone à l'oculaire pour photographier la Lune et les paysages.\u003c\/p\u003e","products":[{"product_id":"svbony-5x-barlow-lens-125in","title":"SVBONY 5X Barlow Lens - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e5X Magnification Power\u003c\/li\u003e\n\u003cli\u003e1.25\" (31.7mm) Barrel Size\u003c\/li\u003e\n\u003cli\u003eMulti-Coated Optical Glass\u003c\/li\u003e\n\u003cli\u003eDurable Metal Housing\u003c\/li\u003e\n\u003cli\u003eWeight: 3.0oz (85g)\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 Barlow Lens 1.25 inch 5X\u003c\/h2\u003e\n\u003cp\u003eThe Svbony 5X Barlow Lens quintuples the magnification of any 1.25-inch eyepiece, providing the power needed for high-resolution planetary and lunar observation. Constructed from metal and optical glass, its lightweight 3.0oz (85g) body adds minimal weight to your focuser, preserving your telescope's balance while delivering extreme magnification.\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\u003e5X Magnification: Pushing Your Telescope to its Planetary Limits\u003c\/h3\u003e\n\u003cp\u003eA 5X magnification factor is a specialized tool designed to extract the maximum possible detail on bright targets. This level of power allows you to resolve fine craterlet chains on the Moon, separate tight double stars, and discern subtle cloud bands on Jupiter or the Cassini Division in Saturn's rings, even with shorter focal length telescopes.\u003c\/p\u003e\n\u003cp\u003eAchieving sharp views at 5X requires stable atmospheric seeing. On nights of excellent seeing, this Barlow transforms your view, but on nights of average seeing, a lower-power Barlow will yield a more stable image. It is an essential accessory for dedicated planetary imagers and observers who want to be ready when conditions permit.\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\u003eOptical Quality: Multi-Coated Glass in a 3.0oz Metal Housing\u003c\/h3\u003e\n\u003cp\u003eThe Svbony 5X Barlow uses multi-coated optical glass elements to maximize light transmission and reduce internal reflections. This ensures that the high-magnification views are as bright and high-contrast as possible, preventing a \"washed-out\" image that can occur with inferior optics.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal Construction:\u003c\/strong\u003e The housing is machined from metal, providing a durable and secure fit in your focuser and for your eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Design:\u003c\/strong\u003e At just 3.0oz (85g), it won't cause significant balance issues on most telescope mounts, a critical factor when imaging at high focal lengths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Barrel:\u003c\/strong\u003e The 1.25\" barrel is compatible with the vast majority of astronomical eyepieces and accessories.\u003c\/li\u003e\n\u003c\/ul\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 5X vs. 2X\/3X Barlows: When to Use Maximum Magnification\u003c\/h3\u003e\n\u003cp\u003eWhile 2X and 3X Barlows are general-purpose accessories, the 5X Barlow is a specialist's tool. It excels in specific scenarios where lower-power Barlows may not provide enough image scale.\u003c\/p\u003e\n\u003cp\u003eChoose the 5X Barlow when your goal is to achieve the largest possible image scale for planetary imaging, especially with cameras that have larger pixels. Visually, it's the right choice for observers with short focal length refractors or those attempting to split the most challenging double stars. For general deep-sky or wide-field lunar viewing, a 2X Barlow remains the more versatile option.\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 is the main purpose of the Svbony 5X Barlow Lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary purpose of the Svbony 5X Barlow is to dramatically increase magnification for observing and imaging bright, small targets. It is ideal for detailed views of planets like Jupiter and Saturn, lunar craters, and for splitting tight double stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Svbony 5X Barlow work with 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 and accepts 1.25\" eyepieces, the Svbony 5X Barlow is compatible. Its standard \u003cstrong\u003e1.25\" (31.7mm)\u003c\/strong\u003e barrel fits all standard focusers and diagonals of that size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs a 5X magnification too much power for my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA 5X magnification can exceed the useful magnification limit of a telescope, especially on nights with poor atmospheric \"seeing.\" A general rule is to not exceed 50x-60x per inch of aperture. This Barlow is most effective on nights of very steady air or for planetary imaging, where large image scale is the priority.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Svbony 5X Barlow affect image brightness?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAny increase in magnification spreads the same amount of light over a larger area, resulting in a dimmer image. A 5X increase will make the image significantly dimmer than with no Barlow. This is why it's best suited for bright objects like the Moon and planets, not faint deep-sky objects like nebulae or galaxies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony 5X Barlow to see the Cassini Division on Saturn with my 80mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, under very steady atmospheric conditions, an 80mm refractor can reveal the Cassini Division. Using the Svbony 5X Barlow will provide the necessary magnification to make the gap more apparent, but the final image quality will be entirely dependent on the stability of the atmosphere (seeing).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Svbony 5X Barlow a good choice for imaging Jupiter with a planetary camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. For planetary imaging, achieving a large image scale on the camera sensor is critical. The Svbony 5X Barlow is an excellent tool for this, allowing you to capture fine details in Jupiter's cloud bands. It helps you achieve the optimal focal ratio (typically f\/15-f\/25) for high-resolution imaging with modern CMOS cameras.\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\u003eItem Name\u003c\/td\u003e\n\u003ctd\u003e1.25\" 5x Barlow Lens\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\u003eMagnification Power\u003c\/td\u003e\n\u003ctd\u003e5X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMetal + Optical glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.0oz (85g)\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 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861233168669,"sku":"SV-F9102A","price":21.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-Barlow-Lens-1-25-inch-5X-1_8dabccc8-733b-498a-989f-fcf6ba205d87.jpg?v=1788659965"},{"product_id":"svbony-2x-barlow-lens-with-m42-threads-125in","title":"SVBONY 2X Barlow Lens with M42 Threads - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e2X Magnification Factor\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003eIntegrated M42x0.75 T-Threads for Cameras\u003c\/li\u003e\n\u003cli\u003eMultilayer HD Broadband Green Film Coatings\u003c\/li\u003e\n\u003cli\u003eFull Metal Construction\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\u003e2X Barlow 1.25inch with M42 Threads\u003c\/h2\u003e\n\u003cp\u003eThis 2X Barlow lens instantly doubles the power of any 1.25\" eyepiece and features an integrated M42x0.75 thread for direct camera attachment. Constructed from solid metal with a compact 7.5cm length, its pure optical glass lenses are treated with a multilayer HD broadband green film to maximize image contrast and light transmission.\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\u003e2X Magnification with Multilayer HD Coatings\u003c\/h3\u003e\n\u003cp\u003eBy doubling the magnification of your eyepiece collection, this 2X Barlow brings fine details on Jupiter's cloud bands and the Moon's craters into sharp focus. The pure optical glass lenses feature a multilayer HD broadband green film, ensuring the magnified view remains bright and high-contrast by mitigating the inherent light loss of adding extra glass elements.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble Your Eyepiece Collection:\u003c\/strong\u003e Effectively turns your existing eyepieces into a set with twice the magnification options, ideal for achieving the optimal power for planetary viewing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Contrast Views:\u003c\/strong\u003e The multilayer HD green film preserves the original image quality by minimizing internal reflections, which is critical for discerning subtle planetary features.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM42 x 0.75 Threads for Direct Camera Attachment\u003c\/h3\u003e\n\u003cp\u003eThe integrated M42x0.75 thread transforms this Barlow from a visual accessory into an imaging tool. This standard T-thread allows you to securely connect a DSLR or dedicated astronomy camera (with the appropriate T-ring, not included) directly to the Barlow, creating a solid optical train for high-magnification lunar and planetary astrophotography.\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\u003eAll-Metal Construction in a 2.95-inch Body\u003c\/h3\u003e\n\u003cp\u003eBuilt entirely from metal, this Barlow is designed for rigidity and long-term use in the field. At a length of just 2.95 inches (7.5cm), it adds minimal length to your imaging train and balances easily, while providing a secure, non-flexing platform for both heavy eyepieces and cameras.\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 this 2X Barlow lens affect my telescope's focal length?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis 2X Barlow doubles your telescope's effective focal length. For example, if you have a telescope with a 1000mm focal length, using this Barlow makes it perform like a 2000mm telescope, doubling the magnification of any eyepiece you use with it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to connect my camera to the Barlow's M42 threads?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a \u003cstrong\u003eT-ring\u003c\/strong\u003e that is specific to your camera's lens mount (e.g., Canon EOS, Nikon F, Sony E-mount). The T-ring screws onto the Barlow's M42x0.75 threads, and your camera body then attaches to the T-ring as it would to a lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 1.25-inch Barlow work with 2-inch eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This Barlow has a 1.25\" barrel and is designed to be used with standard 1.25\" eyepieces and accessories only. It will not fit into a 2\" focuser without an adapter, and it cannot hold a 2\" eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this 2X Barlow suitable for deep-sky objects?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile primarily designed for high-magnification views of bright objects like the Moon and planets, it can be used to get a closer look at smaller, bright deep-sky objects like planetary nebulae (e.g., the Ring Nebula, M57) or globular clusters (e.g., the Hercules Cluster, M13). However, it will dim the view, which is not ideal for faint galaxies or large nebulae.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will this 2X Barlow perform on Saturn with an 8-inch f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAn 8\" f\/10 SCT has a focal length of around 2000mm. This 2X Barlow will increase that to 4000mm. With a 20mm eyepiece, this would yield 200x magnification, an excellent power for seeing Cassini's Division in Saturn's rings and subtle cloud bands on the planet's surface under steady seeing conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this 2X Barlow to get a closer view of the Orion Nebula (M42) in my 4-inch refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, you can use it to magnify specific regions within the Orion Nebula (M42), such as the Trapezium star cluster at its core. However, the 2X magnification will also darken the image and significantly narrow the field of view, preventing you from seeing the entire nebula at once. For wide, bright views of M42, it's best to observe without a Barlow.\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\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e1.25\" (31.7mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e2X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Interface\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Material\u003c\/td\u003e\n\u003ctd\u003ePure optical glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Coating\u003c\/td\u003e\n\u003ctd\u003eMultilayer HD broadband green film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e2.95\" \/ 7.5cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\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\"\u003e2X Barlow 1.25inch with M42 Threads\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 Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861233201437,"sku":"SV-F9108A","price":21.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-2X-Barlow-1-25inch-with-M42-Threads-1_e64cd664-136d-4d6d-b6e4-57e31838a0b7.jpg?v=1788659972"},{"product_id":"svbony-sv136-3x-barlow-lens-125in","title":"SVBONY SV136 3X Barlow Lens - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eTriples eyepiece magnification by a factor of 3x\u003c\/li\u003e\n\u003cli\u003eFits standard 1.25 inch focusers and accessories\u003c\/li\u003e\n\u003cli\u003eAchromatic 3-element, 2-group lens design minimizes color fringing\u003c\/li\u003e\n\u003cli\u003eFeatures multilayer HD broadband green film coatings for high contrast\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 SV136 Barlow 3x 1.25 inch\u003c\/h2\u003e\n      \u003cp\u003eThe Svbony SV136 Barlow delivers a full 3x magnification increase to any 1.25 inch eyepiece, achieved through an advanced 3-element, 2-group achromatic lens structure. This design, combined with multilayer HD broadband green film coatings, ensures that the tripled power does not come at the cost of sharpness or color fidelity, providing high-contrast views of planetary surfaces and tight double stars.\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\u003e3-Element Achromatic Design: 3x Magnification with High Correction\u003c\/h3\u003e\n      \u003cp\u003eUnlike basic 2-element Barlows, the Svbony SV136 uses a more complex 3-element in 2-groups optical layout. This achromatic design actively corrects for chromatic aberration, preventing the distracting blue or yellow halos that can appear around bright objects like Jupiter or the lunar limb at high power. The result is a sharper, more color-pure image, allowing you to push magnification on nights of good seeing.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAchromatic Correction:\u003c\/strong\u003e The 3-element lens system significantly reduces false color for true-to-life views of planetary cloud bands and stellar colors.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMultilayer HD Coatings:\u003c\/strong\u003e Fully multi-coated optics maximize light transmission and suppress internal reflections, enhancing image brightness and contrast.\u003c\/li\u003e\n      \u003c\/ul\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\u003eMaximizing Detail in 1.25\" Fast Telescopes\u003c\/h3\u003e\n      \u003cp\u003eThis 3x Barlow is particularly effective in telescopes with short focal lengths, such as fast Newtonians or short-tube refractors. It allows you to reach the high magnifications needed for detailed planetary observation using longer eye-relief 1.25 inch eyepieces, which are far more comfortable to look through than very short focal length Plössls or orthoscopics.\u003c\/p\u003e\n      \u003cul\u003e\n          \u003cli\u003e\n\u003cstrong\u003eUniversal 1.25\" Barrel:\u003c\/strong\u003e Slides into any standard 1.25\" focuser or diagonal, making it compatible with a vast range of telescopes and eyepieces.\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eSecure Eyepiece Lock:\u003c\/strong\u003e A built-in set screw holds your eyepiece firmly in place, preventing any wobble or accidental slips during observation.\u003c\/li\u003e\n      \u003c\/ul\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 SV136 3x vs. Standard 2x Barlows: When to Use More Power\u003c\/h3\u003e\n      \u003cp\u003eA 2x Barlow is a versatile workhorse, but a 3x Barlow like the SV136 is a specialist tool for when atmospheric conditions permit maximum magnification. On nights of steady seeing, the 3x factor can reveal finer details, such as the Cassini Division in Saturn's rings or subtle festoons in Jupiter's belts, that might be missed at 2x.\u003c\/p\u003e\n      \u003cp\u003eThe primary trade-off is sensitivity to atmospheric turbulence; a 3x Barlow will amplify poor seeing more than a 2x. However, for a dedicated planetary observer with a well-collimated telescope, the SV136 offers a critical step up in power for those fleeting moments of perfect atmospheric stability.\u003c\/p\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\"\u003eWhat is the advantage of the Svbony SV136's 3-element lens design?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003e3-element, 2-group achromatic design\u003c\/strong\u003e provides superior color correction compared to simpler 2-element Barlows. This minimizes chromatic aberration (color fringing) on high-contrast targets like the Moon and bright planets, resulting in a sharper and more natural-looking image at high magnification.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Svbony SV136 3x Barlow a good choice for my 8-inch f\/5 Dobsonian?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, it's an excellent match. An 8-inch f\/5 Dobsonian has a focal length of about 1000mm. With a 25mm eyepiece, you get 40x magnification. Using the Svbony SV136 3x Barlow with that same eyepiece boosts the power to 120x, a great starting point for planetary detail, without requiring an uncomfortable short-focal-length eyepiece.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhen should I use the Svbony SV136 3x Barlow instead of a 2x for viewing Saturn?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eUse the \u003cstrong\u003eSvbony SV136 3x Barlow\u003c\/strong\u003e on nights of very steady atmospheric seeing. While a 2x Barlow provides a reliable power boost, the 3x is for pushing your telescope to its limit. If the air is stable, the 3x magnification can make the Cassini Division in Saturn's rings appear as a sharp, black gap, a detail that might be less distinct at 2x.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Svbony SV136 3x Barlow work with my existing 1.25\" eyepieces?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. The Svbony SV136 features a standard \u003cstrong\u003e1.25 inch barrel\u003c\/strong\u003e that is compatible with virtually all 1.25\" telescope eyepieces, diagonals, and focusers from any brand. It includes a set screw to securely hold your eyepiece in place.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the coatings on the Svbony SV136 Barlow improve the view?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe lenses feature a \u003cstrong\u003emultilayer HD broadband green film\u003c\/strong\u003e. These advanced coatings increase light transmission and drastically reduce internal reflections and glare. This leads to a brighter, higher-contrast image, which is crucial for seeing faint details on planetary surfaces.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony SV136 3x Barlow for planetary imaging?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, it is very useful for planetary imaging. A 3x Barlow increases the effective focal length of your telescope, which enlarges the image of a planet on your camera's sensor. This allows you to capture more detail on small targets like Mars, Jupiter, and Saturn with a dedicated planetary camera.\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\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e3x\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLens Structure\u003c\/td\u003e\n\u003ctd\u003e3-Elements \/ 2-Groups, Achromatic\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eMultilayer HD broadband green film\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  \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":52861235495197,"sku":"SV-F9172C","price":30.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV136-Barlow-3x-1-25-inch-1_1248c580-3446-473c-904a-742a7daaaaf2.jpg?v=1788660096"},{"product_id":"svbony-sv137-2x-fmc-barlow-lens-with-m42-threads-125in","title":"SVBONY SV137 2X FMC Barlow Lens with M42 Threads - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eInstantly doubles the magnification of any 1.25\" eyepiece\u003c\/li\u003e\n\u003cli\u003eFully multi-coated (FMC) optics for bright, high-contrast views\u003c\/li\u003e\n\u003cli\u003eFeatures M42 x 0.75 T-threads for direct camera attachment\u003c\/li\u003e\n\u003cli\u003eBrass compression ring secures eyepieces without scratching barrels\u003c\/li\u003e\n\u003cli\u003eDurable, CNC-machined aluminum body\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 SV137 1.25\" 2X FMC Barlow Lens\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV137 2X Barlow Lens instantly doubles the power of any 1.25\" eyepiece, effectively expanding your magnification options without needing a separate set of high-power eyepieces. With integrated M42 x 0.75 T-threads, it also serves as a 2x amplifier for astrophotography, allowing direct connection to a DSLR T-ring for planetary and lunar imaging.\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\u003e2x Magnification Boost with Fully Multi-Coated Optics\u003c\/h3\u003e\n\u003cp\u003eThis Barlow lens doubles the magnification of your eyepiece, bringing out finer details on the Moon's surface, resolving the cloud bands of Jupiter, or splitting tight double stars. The fully multi-coated (FMC) lenses ensure that as magnification increases, light transmission remains high and contrast is preserved, preventing the washed-out images common with lesser Barlows. While any 2x Barlow narrows the field of view, the SV137's optical design maintains image sharpness and clarity.\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\u003eSecure Fit: 1.25\" Barrel with Brass Ring and M42 Threads\u003c\/h3\u003e\n\u003cp\u003eBuilt from CNC-machined aluminum, the SV137 is designed for durability in the field. Its 1.25\" barrel features a non-marring brass compression ring that provides a secure, concentric grip on your eyepiece without scratching the barrel, unlike simple thumbscrew designs. For imagers, the top of the Barlow unscrews to reveal standard M42 T-threads, creating a solid, threaded connection to your camera for stable, focused shots.\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 will the SVBONY SV137 2X Barlow affect the view of Jupiter in my 8\" f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a typical 8\" f\/10 SCT (around 2000mm focal length), a 10mm eyepiece yields 200x magnification. Adding the SVBONY SV137 Barlow will double this to 400x, which is near the practical limit for that aperture. This increased power will make Jupiter's Great Red Spot and individual cloud bands much larger and more distinct, assuming atmospheric seeing conditions are stable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV137 Barlow Lens for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The SV137 is ideal for planetary, lunar, and solar (with a proper telescope filter) imaging. The top section unscrews to reveal \u003cstrong\u003eM42 x 0.75 T-threads\u003c\/strong\u003e. This allows you to connect a DSLR or dedicated astronomy camera directly using a T-ring, effectively doubling your telescope's focal length and image scale to capture more detail on small targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the brass compression ring on the SV137 Barlow?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe brass compression ring provides a superior way to secure your 1.25\" eyepieces. When you tighten the thumbscrew, it presses the soft brass ring gently and uniformly against the eyepiece barrel. This prevents the set screw from directly digging into and scratching the barrel, preserving the condition of your eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY SV137 work with a small 70mm refractor for viewing the Moon?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. A 70mm refractor is an excellent instrument for lunar observing. Using the SV137 Barlow will double the magnification of your existing eyepieces, allowing you to zoom in on specific craters, rilles, and mountain ranges on the Moon's surface for a more detailed and immersive view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the optics in the SV137 Barlow fully multi-coated?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the SVBONY SV137 features \u003cstrong\u003efully multi-coated (FMC)\u003c\/strong\u003e lenses. This means all air-to-glass surfaces have multiple layers of anti-reflection coatings applied, which maximizes light transmission and enhances image contrast and brightness compared to optics that are only single-coated or partially coated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV137 compatible with all 1.25\" eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the SV137 is designed to work with any standard 1.25\" telescope eyepiece. Its brass compression ring ensures a secure fit for eyepieces of varying weights and designs without causing damage to their barrels.\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\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e2x\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 Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Threads\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocking Mechanism\u003c\/td\u003e\n\u003ctd\u003eBrass Compression Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eCNC-Machined Aluminum\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\"\u003eSV137 1.25\" 2X Barlow Lens\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\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":52861235888413,"sku":"SV-W9106B","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV137-1-25-2X-FMC-Barlow-Lens-with-Brass-Ring-for-Telescope-1_759b1f1e-4174-455b-b203-80b0140b53d7.jpg?v=1788660156"},{"product_id":"svbony-sv137-3x-fmc-barlow-lens-125in","title":"SVBONY SV137 3X FMC Barlow Lens - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDoubles the magnification of any 1.25\" eyepiece\u003c\/li\u003e\n\u003cli\u003eFully multi-coated (FMC) lenses for maximum light transmission\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" barrel diameter fits all standard focusers\u003c\/li\u003e\n\u003cli\u003eCNC-machined aluminum body for durability\u003c\/li\u003e\n\u003cli\u003eInternal brass ring to protect eyepiece barrels from scratches\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 SV137 1.25\" 2X FMC Barlow Lens\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV137 1.25\" 2X FMC Barlow Lens doubles the magnification of any 1.25\" eyepiece, effectively expanding your collection without the cost of new eyepieces. This simple and robust optical accessory is an essential tool for getting closer views of the Moon, planets, and tight double stars through virtually any 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\u003e2X Magnification Boost with Fully Multi-Coated Lenses\u003c\/h3\u003e\n\u003cp\u003eBy placing the SV137 Barlow between your eyepiece and focuser, you instantly get a 2X power increase. The fully multi-coated (FMC) lenses ensure that as magnification increases, light transmission remains high, preserving the brightness and contrast of the original image for sharp, clear views.\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\u003e1.25\" CNC Body with Brass Compression Ring\u003c\/h3\u003e\n\u003cp\u003eBuilt from a single piece of CNC-machined aluminum, the SV137 is designed for durability and precise alignment. Unlike basic models that use a thumbscrew to directly contact the eyepiece, this Barlow features an internal brass compression ring that provides a secure, mar-free grip, protecting the barrels of your 1.25\" eyepieces from scratches and sleeking.\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 will the SVBONY SV137 2X Barlow affect my view of Jupiter in a 4\" refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a typical 4\" f\/7 refractor, a 10mm eyepiece yields 70x magnification. Adding the SVBONY SV137 2X Barlow increases this to 140x, a much better scale for resolving Jupiter's main cloud bands and the Galilean moons. The fully multi-coated optics help maintain image brightness at this higher power.\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 brass compression ring on the SV137 Barlow?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003ebrass compression ring\u003c\/strong\u003e provides a significant advantage over simple set-screw designs. When you tighten the thumbscrew, the soft brass ring gently and evenly tightens around your eyepiece barrel. This prevents the screw from digging into and scratching the barrel, preserving the condition of your eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY SV137 Barlow work with all my 1.25\" eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the SVBONY SV137 is designed to work with any standard 1.25\" format eyepiece. It also fits any telescope focuser, diagonal, or accessory that accepts 1.25\" barrels, making it a universally compatible accessory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen should I use the SVBONY SV137 2X Barlow instead of just a higher-power eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA Barlow lens is an economical way to double the number of magnifications you have available. It's particularly useful for a few key reasons:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintaining Eye Relief:\u003c\/strong\u003e It allows you to achieve high power while using a longer focal length eyepiece, which typically has more comfortable eye relief.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging:\u003c\/strong\u003e Barlows are essential for increasing the image scale for planetary and lunar photography with webcams or dedicated astronomy cameras.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the SV137's multi-coated lenses help when observing the Moon's craters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Moon is a very bright object, and internal reflections can reduce contrast, washing out fine details. The \u003cstrong\u003efully multi-coated (FMC)\u003c\/strong\u003e lenses on the SVBONY SV137 suppress these reflections, resulting in a darker background sky and higher contrast, which makes subtle features along the lunar terminator and inside crater walls stand out more clearly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between this SVBONY SV137 2X Barlow and a 3X Barlow?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA 2X Barlow is more versatile and can be used on more nights of average atmospheric seeing. A 3X Barlow provides much higher magnification but requires very stable seeing conditions to provide a sharp image. The 2X is an excellent all-around choice, while a 3X is a more specialized tool for nights of exceptional stability or for use with long focal length telescopes.\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\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e2X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eCNC-Machined Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Holder\u003c\/td\u003e\n\u003ctd\u003eBrass Compression Ring\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 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861235953949,"sku":"SV-W9106D","price":22.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV137-1-25-2X-FMC-Barlow-Lens-with-Brass-Ring-for-Telescope-1-W9106D_9ebb4e5d-12a7-458f-ac80-eee37f0eb10d.jpg?v=1788660168"},{"product_id":"svbony-sv216-2x-4-element-barlow-lens-125in","title":"SVBONY SV216 2X 4-Element Barlow Lens - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e2x Magnification Factor\u003c\/li\u003e\n\u003cli\u003e4-Element Optical Design\u003c\/li\u003e\n\u003cli\u003e1.25 inch Barrel Size\u003c\/li\u003e\n\u003cli\u003e3-Screw Coaxial Clamping System\u003c\/li\u003e\n\u003cli\u003eFully Multicoated Lenses\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\u003eDownloads\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 SV216 1.25\" 2X 4-Element Barlow Lens for Planetary Astronomy\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV216 1.25\" Barlow Lens doubles your telescope's effective focal length using an advanced 4-element optical design to maintain a flat, sharp field of view. Its coaxial clamp utilizes 3 M3x10 thumbscrews for precise optical alignment, and the barrel's M28.5x0.6 threads accept standard 1.25\" filters for enhanced planetary contrast.\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\u003e4-Element Optics: A Flat Field for 2x Magnification\u003c\/h3\u003e\n\u003cp\u003eUnlike standard 2-element Barlows, the SV216 uses a 4-element lens group to deliver superior optical correction. This design significantly reduces chromatic aberration and flattens the field, ensuring stars remain sharp points even at the edge of wide-angle eyepieces. Fully multicoated surfaces on all elements maximize light transmission for bright, high-contrast views of planetary details like Jupiter's Great Red Spot or the Cassini Division in Saturn's rings.\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\u003eCoaxial Alignment: The 3-Screw Clamping Mechanism\u003c\/h3\u003e\n\u003cp\u003eThe SV216 replaces the single-screw standard with a robust 3-screw clamping system. This design allows you to apply even pressure from multiple points, forcing the eyepiece barrel to align perfectly with the Barlow's optical axis. This coaxial alignment is critical for high-magnification imaging and viewing, preventing optical tilt that can soften an entire side of the image. A brass compression ring prevents the stainless steel thumbscrews from marring your eyepiece barrels.\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\u003eSV216 4-Element vs. Standard 2-Element Barlows\u003c\/h3\u003e\n\u003cp\u003eA standard 2-element achromatic Barlow, like a Celestron Omni, is often lighter and more affordable, making it a common entry-level choice. However, the optical and mechanical design of the SVBONY SV216 provides distinct advantages for serious planetary observation and imaging.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge Correction:\u003c\/strong\u003e The SV216's 4-element design provides a flatter field, crucial for keeping details sharp across the larger sensors of modern planetary cameras or when using wide-field eyepieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Fidelity:\u003c\/strong\u003e By better controlling chromatic aberration, the SV216 minimizes distracting color fringing on bright targets like the lunar limb, Venus, and Jupiter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Centering:\u003c\/strong\u003e The 3-screw clamp of the SV216 offers superior optical alignment compared to the single-screw design common on most 2-element Barlows, preventing image-degrading tilt. The trade-off is weight; at 7.72oz (219g), the SV216 is substantially heavier and may require rebalancing your telescope.\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\"\u003eWhat is the main advantage of the SVBONY SV216's 4-element design?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage of the \u003cstrong\u003e4-element design\u003c\/strong\u003e is superior optical correction compared to simpler 2-element Barlows. It produces a flatter field of view, meaning stars stay sharp closer to the edge, and it significantly reduces chromatic aberration (color fringing) on bright objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 3-screw clamp on the SVBONY SV216 improve views?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e3-screw clamp\u003c\/strong\u003e ensures your eyepiece or camera is held perfectly on the optical axis (coaxially). A single thumbscrew can push the eyepiece slightly to one side, creating tilt that degrades sharpness, especially at high magnification. The SV216's design provides even pressure for a more precise, stable optical train.\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 SV216 Barlow?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 1.25\" barrel is threaded with standard \u003cstrong\u003eM28.5x0.6\u003c\/strong\u003e threads, allowing you to attach any standard 1.25\" filter. This is ideal for using color filters to enhance planetary features or a UV\/IR cut filter for imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY SV216 work well for imaging Jupiter with my 8\" f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. An 8\" SCT has a focal length around 2000mm. The \u003cstrong\u003eSVBONY SV216 2x Barlow\u003c\/strong\u003e will double this to 4000mm (f\/20), providing the ideal image scale for capturing fine detail in Jupiter's cloud bands with most modern planetary cameras. The flat-field 4-element design will keep the planet sharp across the entire sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV216 a good match for wide-angle eyepieces in my fast Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent match. Fast telescopes (f\/4-f\/5) and wide-angle eyepieces are very demanding on optics. The \u003cstrong\u003eSV216's 4-element design\u003c\/strong\u003e provides the necessary correction to control aberrations like coma and astigmatism at the edge of the field, which would be amplified by a simpler Barlow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to rebalance my telescope with the SVBONY SV216?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost likely, yes. The SVBONY SV216 weighs \u003cstrong\u003e7.72oz (219g)\u003c\/strong\u003e, which is significantly heavier than a standard eyepiece or a lightweight Barlow. You should expect to adjust your counterweights or tube position to maintain proper balance, especially on smaller mounts.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e2x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Elements\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Coatings\u003c\/td\u003e\n\u003ctd\u003eFully multicoated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eM28.5x0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Ring\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Type\u003c\/td\u003e\n\u003ctd\u003eStraight Barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThumbscrews\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThumbscrew Thread\u003c\/td\u003e\n\u003ctd\u003eM3x10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsertion Depth\u003c\/td\u003e\n\u003ctd\u003e1.55 inch \/ 39.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength of Upper Body\u003c\/td\u003e\n\u003ctd\u003e2.34 inch \/ 59.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Diameter\u003c\/td\u003e\n\u003ctd\u003e1.73 inch \/ 44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e7.72 oz \/ 219 g\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\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\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":52861236805917,"sku":"SV-W9168A","price":70.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV216-1-25-2X-4-Element-Barlow-Lens-for-Planetary-Astronomy-1_161fcb3c-059d-402a-82aa-b9880252a975.jpg?v=1788883577"},{"product_id":"svbony-sv188-90-zenith-mirror-diagonal-125in","title":"SVBONY SV188 90° Zenith Mirror Diagonal - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides a comfortable 90-degree viewing angle\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" barrel fits most refractor and SCT focusers\u003c\/li\u003e\n\u003cli\u003eFeatures a 90% reflectivity mirror for bright images\u003c\/li\u003e\n\u003cli\u003eDurable all-metal housing maintains optical alignment\u003c\/li\u003e\n\u003cli\u003eSingle-screw clamp secures 1.25\" eyepieces\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 SV188 Zenith Mirror Diagonal 1.25inch 90 Degree\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV188 Zenith Mirror Diagonal redirects the light path of your refractor telescope by 90 degrees, placing the eyepiece in a much more comfortable position for astronomical viewing. Its standard 1.25-inch barrel ensures compatibility with a vast range of telescopes and eyepieces, while the internal mirror's 90% reflectivity preserves the brightness and clarity of the image delivered by your objective lens.\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\u003e90% Reflectivity Mirror for Brighter, Clearer Views\u003c\/h3\u003e\n\u003cp\u003eThe core of the SV188 is its mirror, which features a reflective coating that transmits 90% of the incoming light to your eyepiece. This level of reflectivity is crucial for preserving image brightness, especially when observing faint deep-sky objects like the Orion Nebula (M42) or distant galaxies. Unlike some entry-level prisms, a mirror diagonal introduces no chromatic aberration, ensuring that bright objects like Jupiter and Sirius remain free of false color.\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 Metal Housing \u0026amp; 1.25\" Refractor Compatibility\u003c\/h3\u003e\n\u003cp\u003eBuilt with a metal housing, the SVBONY SV188 is designed for durability and to hold the mirror in precise alignment, night after night. The 1.25-inch nosepiece and eyepiece holder are standard sizes, ensuring a secure fit in the focusers of most refractors, Schmidt-Cassegrains, and Maksutov-Cassegrains. A single locking screw provides a firm grip on your eyepieces.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefractor-Specific Design:\u003c\/strong\u003e This diagonal is optimized for telescopes where you view from the back of the tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNewtonian Limitation:\u003c\/strong\u003e The SV188 is not suitable for Newtonian reflectors. Its light path is too long, which prevents the telescope from reaching focus.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSV188 Mirror vs. Prism Diagonal: A 90° Difference\u003c\/h3\u003e\n\u003cp\u003eWhile both mirror and prism diagonals provide a 90-degree viewing angle, they achieve it differently. The SV188's mirror reflects the light, which generally provides better color fidelity and light throughput compared to standard, uncoated prism diagonals. While high-end prisms can offer excellent views, a quality mirror diagonal like the SV188 is often a significant upgrade over the basic prism included with many beginner telescopes, yielding sharper and brighter images.\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\"\u003eWhy should I use the SVBONY SV188 diagonal with my refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary reason is comfort. Without a diagonal, viewing objects high in the sky through a refractor requires you to crouch or kneel in an awkward position. The SV188's \u003cstrong\u003e90-degree\u003c\/strong\u003e angle lets you observe comfortably while seated, leading to steadier views and longer, more enjoyable sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY SV188 work with my Newtonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the SV188 is \u003cstrong\u003enot suitable for Newtonian reflectors\u003c\/strong\u003e. Newtonian telescopes have a very specific focal plane and require a secondary mirror, not a diagonal, to direct light to the side-mounted focuser. Adding this diagonal would prevent the telescope from achieving focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the SV188 diagonal affect views of the Moon in my 80mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV188 will provide bright, sharp views of the Moon. Its \u003cstrong\u003e90% reflectivity\u003c\/strong\u003e ensures minimal light loss, keeping lunar features like crater walls and rilles high in contrast. Because it's a mirror diagonal, it won't introduce any chromatic aberration (color fringing), preserving the true color and fine detail along the terminator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the SVBONY SV188 provide a \"correct\" image for terrestrial viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. Like all standard astronomical mirror diagonals, the SV188 provides an image that is correct up-and-down but is reversed left-to-right. This is perfectly acceptable for astronomy, but for terrestrial viewing (like bird watching), you would need a 45-degree correct-image erecting prism.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV188 on a Maksutov-Cassegrain like a Celestron NexStar 4SE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. Maksutov-Cassegrain and Schmidt-Cassegrain telescopes function like refractors in that they have a rear-mounted focuser. The SV188 is perfectly compatible and is a common accessory for these types of telescopes to achieve a more comfortable viewing position.\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 SV188 mirror diagonal over a basic prism diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV188's main advantages are typically better light transmission and color fidelity. Its \u003cstrong\u003e90% reflectivity\u003c\/strong\u003e mirror surface avoids the potential light absorption and scattering of a lower-quality prism and does not introduce the slight chromatic aberration that can occur as light passes through the glass of a prism.\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\u003eEyepiece Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" (or 2\" with optional adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Clamp\u003c\/td\u003e\n\u003ctd\u003eSingle screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReflectivity\u003c\/td\u003e\n\u003ctd\u003e90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Telescope Types\u003c\/td\u003e\n\u003ctd\u003eRefractors, Schmidt-Cassegrains, Maksutov-Cassegrains\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncompatible Telescope Types\u003c\/td\u003e\n\u003ctd\u003eNewtonian Reflectors\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\"\u003eSV188 1.25\" Zenith Mirror Diagonal\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Eyepiece Side)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Telescope Side)\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":52861237461277,"sku":"SV-F9171A","price":34.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV188-Zenith-Mirror-Diagonal-1-25inch-90-Degree-For-Refractors-1_e283a9c2-ef17-4efb-bee3-fc97ff1c0caf.jpg?v=1788883436"},{"product_id":"svbony-sv188p-90-dielectric-mirror-diagonal-2in","title":"SVBONY SV188P 90° Dielectric Mirror Diagonal - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003e99% Reflectivity Dielectric Coatings\u003c\/li\u003e\n  \u003cli\u003e90-Degree Viewing Angle\u003c\/li\u003e\n  \u003cli\u003e11mm Thick Mirror Substrate\u003c\/li\u003e\n  \u003cli\u003eDurable Aluminum Alloy Body\u003c\/li\u003e\n  \u003cli\u003eBrass Compression Ring Eyepiece Holder\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 SV188P 99% Reflectivity 90-Degree Dielectric Mirror Diagonal\u003c\/h2\u003e\n          \u003cp\u003eThe SVBONY SV188P 90-Degree Dielectric Mirror Diagonal maximizes image brightness by delivering 99% reflectivity from its precision 11mm thick mirror. This design ensures that the absolute minimum amount of light is lost in the optical path, providing brighter, higher-contrast views through refractors and Cassegrain telescopes.\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\u003e99% Dielectric Mirror: Maximizing Light Throughput\u003c\/h3\u003e\n          \u003cp\u003eAt the core of the SV188P is a mirror with advanced dielectric coatings that achieve 99% reflectivity. Unlike standard aluminum or silver coatings that can degrade over time, these multi-layer coatings are highly durable and deliver consistent light transmission across the visible spectrum. The mirror itself is 11mm thick, providing excellent thermal stability to maintain a precise figure during temperature changes.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003e99% Reflectivity:\u003c\/strong\u003e Transmits nearly all collected light to your eyepiece, resulting in visibly brighter images compared to diagonals with lower-grade coatings.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eDielectric Coatings:\u003c\/strong\u003e Offer superior durability and resistance to aging, ensuring the diagonal maintains its peak optical clarity for years of use.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003e11mm Thick Mirror:\u003c\/strong\u003e Provides a stable optical surface that resists warping from temperature fluctuations, preserving image sharpness.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003e90-Degree Ergonomics and Eyepiece Protection\u003c\/h3\u003e\n          \u003cp\u003eDesigned for comfortable observing, the 90-degree angle of the SV188P places the eyepiece in a natural position for viewing objects high in the sky, reducing neck strain during long sessions. The robust aluminum alloy body houses a non-marring brass compression ring, which secures your eyepieces firmly without scratching their barrels—a significant upgrade over simple set screw designs.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eComfortable Viewing Angle:\u003c\/strong\u003e The 90-degree bend is ideal for use with refractor and Cassegrain-style telescopes where the eyepiece would otherwise be at an awkward angle.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eBrass Compression Ring:\u003c\/strong\u003e Grips the eyepiece barrel uniformly, preventing scratches and ensuring a secure, centered fit.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eAluminum Alloy Construction:\u003c\/strong\u003e Provides a rigid, durable frame for the optical components, ensuring reliable alignment.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eSV188P's 99% Reflectivity vs. Standard Silver Diagonals\u003c\/h3\u003e\n          \u003cp\u003eWhile a standard silver-coated diagonal typically offers 95-97% reflectivity, the SVBONY SV188P's 99% dielectric coatings provide a measurable increase in image brightness. This difference is most apparent when observing faint deep-sky objects or resolving low-contrast details on planets at high magnification.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eBrighter Images:\u003c\/strong\u003e The 2-4% increase in light transmission can be the difference between spotting a faint galaxy arm or seeing only the core.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eEnhanced Durability:\u003c\/strong\u003e Dielectric coatings do not tarnish or oxidize like silver, offering a longer operational life with consistent optical clarity.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eTrade-off:\u003c\/strong\u003e The SV188P produces an image that is upright but mirror-reversed (left-to-right), making it perfect for astronomy but unsuitable for terrestrial viewing where correct image orientation is required.\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\"\u003eWhy is a 99% dielectric diagonal like the SVBONY SV188P better than a standard one?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eA 99% dielectric diagonal like the \u003cstrong\u003eSVBONY SV188P\u003c\/strong\u003e transmits more of the light gathered by your telescope to the eyepiece. Standard diagonals can lose 5% or more of the light, but the SV188P loses only 1%. This results in brighter, higher-contrast images, which is especially critical for observing faint deep-sky objects like nebulae and galaxies.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the image orientation through the SVBONY SV188P diagonal?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe SVBONY SV188P provides an image that is \u003cstrong\u003eupright but mirror-inverted\u003c\/strong\u003e (left and right are reversed). This is standard for astronomical mirror diagonals and is perfectly fine for observing celestial objects, as there is no \"up\" or \"down\" in space. However, it is not suitable for terrestrial viewing.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SVBONY SV188P's brass compression ring protect my eyepieces?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eInstead of a single set screw digging into your eyepiece barrel, the SVBONY SV188P uses a \u003cstrong\u003esoft brass compression ring\u003c\/strong\u003e that tightens evenly around the barrel. This provides a secure grip without leaving scratches or gouges, preserving the condition of your valuable eyepieces.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY SV188P work with my refractor or SCT?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eYes, the SV188P is designed specifically for telescopes that focus straight through the back, such as \u003cstrong\u003erefractors, Schmidt-Cassegrains (SCTs), and Maksutov-Cassegrains\u003c\/strong\u003e. The 90-degree angle provides a much more comfortable viewing position than looking straight through.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the SV188P's 99% reflectivity help when observing faint details on Jupiter with my 8\" SCT?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eWhen observing planets like Jupiter, maximizing light throughput is key to seeing subtle, low-contrast features. The SVBONY SV188P's \u003cstrong\u003e99% reflectivity\u003c\/strong\u003e ensures that the faintest details in Jupiter's cloud bands and the Great Red Spot are delivered to your eye with maximum brightness and contrast, making them easier to resolve at high magnification.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV188P diagonal suitable for terrestrial viewing, like bird watching?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eNo, the SVBONY SV188P is not recommended for terrestrial use. It produces a \u003cstrong\u003emirror-reversed image\u003c\/strong\u003e, meaning text would appear backwards. For correct image orientation for daytime viewing, you would need a 45-degree or 90-degree correct-image prism diagonal.\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\u003eBrand\u003c\/td\u003e\n          \u003ctd\u003eSVBONY\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMaterial\u003c\/td\u003e\n          \u003ctd\u003eAluminum Alloy\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eCoatings\u003c\/td\u003e\n          \u003ctd\u003eDielectric\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eReflectivity\u003c\/td\u003e\n          \u003ctd\u003e99%\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eReflection Surface\u003c\/td\u003e\n          \u003ctd\u003eDielectrically Coated\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMirror Thickness\u003c\/td\u003e\n          \u003ctd\u003e11mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eImage Orientation\u003c\/td\u003e\n          \u003ctd\u003eErect Image, Mirror Inverted\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSet Screws\u003c\/td\u003e\n          \u003ctd\u003eM4\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\"\u003eSVBONY SV188P 2\" Dielectric Diagonal\u003c\/p\u003e\n          \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/li\u003e\n       \u003cli class=\"DAV-grid-item\"\u003e\n        \u003cdiv\u003e\n          \u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n          \u003cp class=\"DAV-item-subtitle\"\u003e× 2\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":52861237526813,"sku":"SV-F9171D","price":88.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV188P-99-Reflectivity-90-Degree-Dielectric-Mirror-Diagonal-1-F9171D_86aad769-0b9e-4e84-b1cd-45a2397de09e.jpg?v=1788883456"},{"product_id":"svbony-sv221-90-brass-mirror-diagonal-125in","title":"SVBONY SV221 90° Brass Mirror Diagonal - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e90° Deflection Angle for Comfortable Viewing\u003c\/li\u003e\n\u003cli\u003eAluminum-Coated Mirror with \u0026gt;92% Reflectivity\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" Barrel and Eyepiece Clamp\u003c\/li\u003e\n\u003cli\u003eAccepts 1.25\" Filters via M28.5x0.6 Threads\u003c\/li\u003e\n\u003cli\u003eBrass Compression Ring Prevents Eyepiece Scratches\u003c\/li\u003e\n\u003cli\u003eLightweight 90.5g Construction\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 SV221 1.25\" 90° Brass Diagonal for Refractor Telescope\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV221 1.25\" 90° Brass Diagonal redirects the light path of your refractor, providing a comfortable viewing angle for objects high in the sky. Its aluminum-coated mirror has a reflectivity greater than 92% across a 29.5mm clear aperture, ensuring bright images with minimal light loss. The integrated M28.5x0.6 thread allows for the use of standard 1.25\" filters, and at just 90.5g, it adds minimal weight to your optical train.\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\u003e90° Viewing Angle with \u0026gt;92% Reflectivity\u003c\/h3\u003e\n\u003cp\u003eA 90° diagonal is an essential accessory for any refractor or Schmidt-Cassegrain telescope, eliminating neck strain when observing targets near the zenith. The SVBONY SV221 uses an aluminum-coated mirror with a reflectivity of over 92% to deliver bright, high-contrast views. The 29.5mm clear aperture is large enough to prevent vignetting with standard 1.25\" Plössl eyepieces, preserving the brightness of your telescope's optics. Note that as a mirror diagonal, it provides an image that is vertically correct but horizontally reversed (Erect Image, Mirror Inverted), which is normal for astronomical viewing but not ideal for terrestrial use where correct image orientation is required.\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\u003eBrass Ring Clamp and M28.5x0.6 Filter Threads\u003c\/h3\u003e\n\u003cp\u003eThe SV221 is engineered to protect your equipment while enhancing its capabilities. Unlike basic diagonals that use a single screw to hold the eyepiece, this model features a brass compression ring that provides a secure, non-marring grip on your eyepiece barrels, preventing scratches and gouges. The nosepiece is threaded for standard M28.5x0.6 filters, allowing you to easily add a moon filter or light pollution filter to your setup without needing to thread it onto each individual eyepiece.\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 is the main purpose of the SVBONY SV221 diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV221 is a \u003cstrong\u003e90° mirror diagonal\u003c\/strong\u003e designed for refractor and Schmidt-Cassegrain telescopes. Its primary purpose is to bend the light path at a right angle, allowing you to observe comfortably, especially when the telescope is pointing towards the zenith (straight up).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the brass pressure ring on the SV221 protect my eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe brass compression ring provides a significant advantage over simple set-screw designs. When you tighten the clamp, the soft brass ring gently and evenly squeezes the eyepiece barrel. This holds it securely in place without the screw tip digging into the barrel, which prevents the scratches and gouges common with lower-quality diagonals.\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 SV221?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 1.25\" nosepiece of the SVBONY SV221 has standard \u003cstrong\u003eM28.5x0.6 threads\u003c\/strong\u003e. This allows you to screw any standard 1.25\" filter, such as a moon filter or a nebula filter, directly onto the diagonal itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV221 suitable for observing Jupiter with my 80mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The SVBONY SV221 is an excellent choice for planetary viewing with an 80mm refractor. Its \u003cstrong\u003e\u0026gt;92% reflectivity\u003c\/strong\u003e ensures that the bright image of Jupiter (and its moons) reaches your eyepiece with minimal light loss, preserving contrast and detail in the planet's cloud bands. The 90° angle will make observing much more comfortable as Jupiter climbs higher in the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"Erect Image, Mirror Inverted\" mean for the view through the SV221?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis describes the image orientation. \"Erect Image\" means the view is right-side up, but \"Mirror Inverted\" means it is flipped left-to-right. For astronomy, this is perfectly acceptable as there is no \"up\" or \"down\" in space. However, it means that text or terrestrial objects would appear backward, making it less suitable for daytime terrestrial viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI find it difficult to look through my refractor when it's pointed at the zenith. Will the SVBONY SV221 diagonal help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is exactly what the SVBONY SV221 is designed for. By redirecting the light path by \u003cstrong\u003e90°\u003c\/strong\u003e, it allows you to look down into the eyepiece from a comfortable standing or seated position, even when the telescope is aimed directly overhead. This completely solves the issue of having to crouch or kneel to use your refractor.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e1.25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eMirror Diagonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeflection Angle\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReflectivity\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;92%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReflection Surface\u003c\/td\u003e\n\u003ctd\u003eAluminum Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e29.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Orientation\u003c\/td\u003e\n\u003ctd\u003eErect Image, Mirror Inverted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens-Sided Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Barrel with M28.5x0.6 Filter Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece-Sided Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eBrass Compression Ring with Screw Clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003eapprox. 73mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePlastic \u0026amp; Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e90.5g \/ 3.19oz\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\"\u003eSV221 1.25\" 90 Degree Mirror Diagonal\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM3 Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Plug\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":52861237559581,"sku":"SV-W9178A","price":21.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV221-1-25-90-Brass-Diagonal-for-Refractor-Telescope-1_8b7ba08c-cdce-47b8-adc1-807d5a4a713f.jpg?v=1788883600"},{"product_id":"svbony-sv221-45-correct-image-prism-diagonal-125in","title":"SVBONY SV221 45° Correct Image Prism Diagonal - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProduces a fully erect, non-reversed image\u003c\/li\u003e\n\u003cli\u003eComfortable 45° viewing angle for terrestrial observation\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" barrel fits most refractor telescopes\u003c\/li\u003e\n\u003cli\u003eFeatures a 19mm clear aperture\u003c\/li\u003e\n\u003cli\u003eThreaded (M28.5x0.6) to accept 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\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 SV221 45-Degree Erecting Prism Diagonal for Refractor Telescope\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV221 converts your refractor for terrestrial viewing, delivering a fully erect, non-reversed image at a comfortable 45° angle. It fits standard 1.25 inch focusers, features a 19mm clear aperture for bright views, and adds approximately 86mm of optical length to your light path. Weighing only 79g, this multi-coated prism diagonal is threaded for M28.5x0.6 filters, making it a lightweight and versatile addition to your kit.\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\u003eCorrect-Image Views at a Comfortable 45° Angle\u003c\/h3\u003e\n\u003cp\u003eThe primary function of the SV221 is to correct the inverted and reversed image produced by a refractor telescope. Its internal prism system delivers an erect, non-reversed view, just as you see with your naked eye, making it intuitive to track moving subjects like birds, ships, or wildlife. The 45° deflection provides a much more comfortable viewing posture for daytime observation compared to looking straight through the telescope.\u003c\/p\u003e\n\u003cp\u003eThe multi-coated prism and 19mm clear aperture ensure that the image remains bright and clear. This makes the SV221 an essential accessory for transforming your astronomical refractor into a powerful, long-range spotting scope for terrestrial use.\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\u003eSecure Clamping and 1.25\" Filter Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe SV221 is constructed with a durable, precision-molded plastic main body and machined aluminum barrels for a secure fit. Unlike basic diagonals that use a single screw to hold the eyepiece, this model features a brass compression ring that provides a firm, even grip without scratching or marring your eyepiece barrels. This secure connection maintains optical alignment and protects your equipment.\u003c\/p\u003e\n\u003cp\u003eFor added versatility, the 1.25\" nosepiece is threaded for standard M28.5x0.6 filters. You can easily attach a moon filter, a light pollution filter, or colored planetary filters to enhance your views without needing a separate filter cell.\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\u003eSV221 Erecting Prism vs. a Standard Mirror Diagonal\u003c\/h3\u003e\n\u003cp\u003eIt's important to choose the right diagonal for your purpose. While both redirect light for comfortable viewing, they produce very different images.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Mirror Diagonal:\u003c\/strong\u003e A typical \"star diagonal\" uses a mirror to bend the light path. This produces an image that is upright but reversed left-to-right. This is perfectly acceptable for astronomy, as stars are points of light, but it can be disorienting for terrestrial viewing where \"left is left\" matters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSVBONY SV221 Erecting Prism:\u003c\/strong\u003e This diagonal uses a prism to provide a fully corrected image—upright and not reversed. This is the ideal choice for daytime, terrestrial observation with a refractor or Maksutov-Cassegrain, as it makes panning and tracking objects natural and intuitive.\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\"\u003eWhy do I need the SVBONY SV221 for daytime viewing with my refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA refractor telescope naturally produces an image that is upside-down and backward. The SVBONY SV221 uses a 45° prism to correct this, delivering an \u003cstrong\u003eerect and non-reversed image\u003c\/strong\u003e. This makes it possible to use your astronomy telescope as a high-power spotting scope for activities like birdwatching or landscape viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY SV221 work with my Newtonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The SVBONY SV221 is designed for refractor and Cassegrain-type telescopes. A Newtonian reflector does not have enough focuser travel to reach focus with the additional \u003cstrong\u003e86mm optical length\u003c\/strong\u003e of a prism diagonal. Newtonians require very low-profile focusers and do not typically use diagonals in the same way.\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 SV221 diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 1.25\" barrel of the SV221 has standard \u003cstrong\u003eM28.5x0.6 filter threads\u003c\/strong\u003e. This allows you to attach any standard 1.25\" filter, such as a moon filter for reducing glare or a light pollution filter for enhancing contrast 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 advantage of the SVBONY SV221's clamping system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV221 features a brass compression ring inside the eyepiece holder. When you tighten the screw, this ring tightens evenly around the eyepiece barrel. This is superior to a simple screw which can scratch or dent your eyepieces and potentially cause a slight tilt.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV221 suitable for high-magnification planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the SVBONY SV221 can be used for astronomy, it is primarily optimized for lower-power terrestrial viewing. Prism diagonals can sometimes introduce a small amount of chromatic aberration (false color) at very high magnifications. For critical, high-power observation of planets like Jupiter or Saturn, a high-quality mirror diagonal is often preferred by discerning astronomers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 45° angle of the SV221 affect observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e45° angle\u003c\/strong\u003e is ideal for terrestrial viewing, as you are typically looking at objects at or near the horizon. This provides a comfortable, natural neck position. For astronomical viewing, a 90° diagonal is often preferred, as it makes it easier to view objects that are high overhead, near the zenith.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSV221\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003ePrism Diagonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeflection Angle\u003c\/td\u003e\n\u003ctd\u003e45°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Orientation\u003c\/td\u003e\n\u003ctd\u003eErect image, non-reversed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e19mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eMulti-Coated (MC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Clamp with Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eM28.5x0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003eappr. 86mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePlastic \u0026amp; Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e79g \/ 2.78oz\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\"\u003eSV221 1.25\" 45 Degree Correct Image Prism Diagonal\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM3 Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Plug\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 Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861237592349,"sku":"SV-W9178B","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV221-45-Degree-Erecting-Prism-Diagonal-for-Refractor-Telescope-1_1489e9fd-f5d1-483a-8a02-fee8a0ff304d.jpg?v=1788883589"},{"product_id":"svbony-sv222-45-correct-image-prism-diagonal-fmc-125in","title":"SVBONY SV222 45° Correct Image Prism Diagonal FMC - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProduces an erect, non-reversed image for terrestrial and astronomical viewing\u003c\/li\u003e\n\u003cli\u003e45° deflection angle provides a comfortable viewing position\u003c\/li\u003e\n\u003cli\u003ePhase-coated BK7 prism for enhanced image contrast and brightness\u003c\/li\u003e\n\u003cli\u003eFits standard 1.25-inch focusers and eyepieces\u003c\/li\u003e\n\u003cli\u003eCNC machined aluminum body weighs only 167g\u003c\/li\u003e\n\u003cli\u003eFeatures a 16mm clear aperture and accepts 1.25\" filters (M28.5x0.6)\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 SV222 1.25\" 45° Correct Image Diagonal FMC Phase Coating\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV222 1.25\" Correct Image Diagonal uses a 45° BK7 prism to deliver a correctly oriented, non-reversed image suitable for both daytime terrestrial viewing and astronomical observation. Its phase-coated and fully multi-coated optics pass through a 16mm clear aperture, providing high-contrast views with an optical path length of approximately 93mm. The entire CNC-machined aluminum body weighs a mere 167g, adding minimal weight to your refractor or catadioptric telescope setup.\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\u003eA 45° Erect, Non-Reversed View for Terrestrial and Astro Use\u003c\/h3\u003e\n\u003cp\u003eUnlike a standard 90° star diagonal that produces a mirror-reversed image, the SV222's prism design corrects the view completely. This means left is left and right is right, just as you see with your naked eye. This intuitive orientation is essential for terrestrial applications like birdwatching or landscape viewing, transforming your astronomical telescope into a high-power spotting scope. The 45° viewing angle is more natural for daytime use than a 90° angle, reducing neck strain during extended sessions.\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\u003ePhase-Coated BK7 Prism: Maximizing Contrast with a 16mm Aperture\u003c\/h3\u003e\n\u003cp\u003eThe heart of the SV222 is its BK7 prism, which features both full multi-coatings and advanced phase coatings. Phase correction is a critical treatment that eliminates destructive interference within the prism, resulting in a measurable increase in image contrast and resolution. This allows you to resolve finer details on planets and see fainter stars against a darker sky background. The interior of the diagonal is blackened and baffled to absorb stray light, further enhancing contrast. The 16mm clear aperture is sufficient for most planetary and lunar eyepieces, though it may cause slight vignetting with very long focal length 1.25\" eyepieces that have wide field stops.\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\u003eCNC Aluminum Build with a 1.25\" Non-Marring Brass Clamp\u003c\/h3\u003e\n\u003cp\u003eThe SV222 is built from a single piece of CNC-machined aluminum with a durable anodized finish, ensuring precise optical alignment and longevity. The 1.25\" eyepiece holder uses a brass compression ring instead of a simple screw, which clamps your eyepieces securely without scratching or marring their barrels. The 1.25\" nosepiece is threaded to accept standard M28.5x0.6 filters, allowing you to easily add a moon filter or light pollution filter to your observing chain.\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\"\u003eWhy choose the Svbony SV222 45° diagonal over a standard 90° star diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eChoose the \u003cstrong\u003eSvbony SV222\u003c\/strong\u003e when you need a correctly oriented, non-reversed image. This is essential for daytime terrestrial viewing (birdwatching, nature) where a mirror-image from a standard diagonal would be disorienting. The 45° angle is also often more comfortable for daytime use. For purely astronomical viewing, a 90° diagonal is typically preferred for its more comfortable angle when observing objects high in the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"phase coating\" do on the SV222's prism?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003ePhase coatings\u003c\/strong\u003e correct for a phenomenon called \"phase shift\" that occurs when light is reflected within a prism. This correction prevents destructive light wave interference, resulting in significantly improved image contrast, resolution, and brightness compared to an uncoated prism. It's a premium feature that helps the SV222 deliver sharper views.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony SV222 with my Newtonian reflector telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e The Svbony SV222 has an optical path length of approximately 93mm, which is too long for a standard Newtonian reflector. You will not be able to rack the focuser in far enough to reach focus. This diagonal is designed specifically for refracting and catadioptric (SCT, Maksutov) telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SV222's 16mm clear aperture cause vignetting with my eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e16mm clear aperture\u003c\/strong\u003e is generally well-matched for most 1.25\" eyepieces used for planetary, lunar, and double star observing. However, you may experience some vignetting (darkening at the edge of the field) if you use a 1.25\" eyepiece with a very long focal length (like a 32mm or 40mm Plössl) that has a field stop larger than 16mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Svbony SV222 perform for birdwatching with a small 80mm f\/7 refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSvbony SV222\u003c\/strong\u003e is an excellent match for this scenario. It will provide a correctly oriented, high-contrast image, making it easy to follow birds in motion. The 45° angle is comfortable for viewing subjects at or near the horizon, and the phase-coated optics will help resolve fine feather details and subtle color variations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SV222 a good choice for viewing the Moon and planets with a Maksutov-Cassegrain?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is a very capable choice. While the 45° angle might be less comfortable than a 90° for objects directly overhead, the phase-coated optics of the \u003cstrong\u003eSvbony SV222\u003c\/strong\u003e will deliver sharp, high-contrast views of lunar craters, Jupiter's cloud bands, and Saturn's rings. The correct-image orientation can also make it easier to navigate the lunar surface using a map.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003ePrism Diagonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Material\u003c\/td\u003e\n\u003ctd\u003eBK7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeflection Angle\u003c\/td\u003e\n\u003ctd\u003e45°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Orientation\u003c\/td\u003e\n\u003ctd\u003eErect image, non-reversed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e16mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated + Phase Coatings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003eapprox. 93mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eM28.5x0.6 (Lens Sided)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eBrass Compression Ring with Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eCNC Metal Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e167g \/ 5.87oz\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\"\u003eSV222 1.25\" 45° Metal Correct Image Prism Diagonal\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM4 Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Plug\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 Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861237657885,"sku":"SV-W9179A","price":56.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV222-1-25-45-Correct-Image-Diagonal-FMC-Phase-Coating-1_2cd5b71e-12ee-4d0e-8e90-43f927cbc48a.jpg?v=1788883612"},{"product_id":"svbony-sv222-90-erect-image-prism-diagonal-125in","title":"SVBONY SV222 90° Erect Image Prism Diagonal - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProduces a 90° erect, non-reversed image\u003c\/li\u003e\n\u003cli\u003eStandard 1.25-inch barrel size\u003c\/li\u003e\n\u003cli\u003eBK7 prism with anti-reflection coatings\u003c\/li\u003e\n\u003cli\u003e19mm clear aperture\u003c\/li\u003e\n\u003cli\u003eCNC machined aluminum body\u003c\/li\u003e\n\u003cli\u003eThreaded for M28.5x0.6 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\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 SV222 1.25\" 90° Erect Prism Diagonal\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV222 1.25\" 90° Erect Prism Diagonal corrects the view in your refractor or Cassegrain telescope, delivering an upright and non-reversed image essential for terrestrial observation. Its BK7 prism provides a 19mm clear aperture, and the entire CNC-machined aluminum unit adds only 153.8g to your optical train. The optical path length is approximately 65.6mm, and the barrel is threaded to accept standard M28.5x0.6 filters.\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\u003e90° BK7 Prism: Correct Orientation for Land and Sky\u003c\/h3\u003e\n\u003cp\u003eThe core of the SV222 is a BK7 glass prism that deflects light 90°, providing a comfortable viewing angle while producing an \"erect image, non-reversed\" orientation. This is critical for daytime use like birdwatching or landscape viewing, where a standard astronomy diagonal's mirror-reversed image is disorienting. For astronomy, it makes navigating with star charts more intuitive, as the view in the eyepiece matches the chart exactly.\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\u003eCNC Machined Body with a 19mm Clear Aperture\u003c\/h3\u003e\n\u003cp\u003eConstructed from CNC-machined aluminum, the SV222 body is built for durability and precise alignment. The interior is blackened and baffled around the 19mm clear aperture to absorb stray light, preventing internal reflections from reducing image contrast. This ensures a darker background sky and sharper details on both celestial and terrestrial targets.\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\u003eSecure Clamping and M28.5x0.6 Filter-Ready Design\u003c\/h3\u003e\n\u003cp\u003eThe SV222 uses a screw clamp system to securely hold your 1.25\" eyepieces, preventing wobble and maintaining optical alignment. This mechanism provides a firm grip without marring the eyepiece barrel. The 1.25\" nosepiece is threaded for M28.5x0.6 filters, allowing you to easily add a moon filter, light pollution filter, or planetary color filters to enhance your view.\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\u003eSV222 Erecting Prism vs. Standard Mirror Diagonal\u003c\/h3\u003e\n\u003cp\u003eChoosing between an erecting prism and a mirror diagonal depends entirely on your primary use case. Both provide a comfortable 90° viewing angle, but the image orientation is fundamentally different.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSV222 Erecting Prism:\u003c\/strong\u003e Delivers a fully correct image (upright and not reversed left-to-right). This is non-negotiable for terrestrial viewing and highly convenient for beginners learning to navigate the sky with charts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Mirror Diagonal:\u003c\/strong\u003e Produces an image that is upright but reversed left-to-right. For purely astronomical deep-sky observing, a high-quality dielectric mirror diagonal may offer slightly higher light transmission, though the SV222's anti-reflection coatings deliver bright, high-contrast images suitable for all-around use.\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\"\u003eWhy do I need an erect image diagonal like the SVBONY SV222 for my refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA refractor or SCT naturally produces an image that is upside-down and reversed. A standard star diagonal corrects the up-down orientation but leaves it mirror-reversed. The \u003cstrong\u003eSVBONY SV222\u003c\/strong\u003e is an erecting prism that corrects both, delivering a view that is upright and correctly oriented left-to-right, just as you see with your naked eye. This is essential for daytime terrestrial viewing and makes astronomical navigation with star charts much more intuitive.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV222 for observing planets like Jupiter in my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The SV222 is a great choice for planetary viewing in a Schmidt-Cassegrain or refractor. Its anti-reflection coated BK7 prism provides sharp, high-contrast images, allowing you to resolve details like Jupiter's cloud bands or Saturn's rings. The correct image orientation can also make it easier to track the planet's movement across the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SV222 a good choice for birdwatching with an 80mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV222 is an ideal choice for this application. Its primary function is to provide a correctly oriented image, which is exactly what you need for terrestrial use like birdwatching. The 90° angle is comfortable for viewing subjects at various elevations, and the all-metal construction ensures it can handle field use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between this SV222 prism diagonal and a mirror diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe main difference is the image orientation. The \u003cstrong\u003eSV222 prism diagonal\u003c\/strong\u003e provides a fully corrected, non-reversed image. A \u003cstrong\u003emirror diagonal\u003c\/strong\u003e provides an image that is right-side-up but reversed left-to-right. For terrestrial viewing, the prism is necessary. For astronomy, it's a matter of preference; some purists prefer high-end mirror diagonals for maximum light transmission on faint deep-sky objects, while many find the prism's correct view more convenient.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY SV222 accept 1.25\" astronomy filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 1.25\" nosepiece that inserts into your telescope's focuser is threaded with a standard \u003cstrong\u003eM28.5x0.6 thread\u003c\/strong\u003e. This allows you to attach any standard 1.25\" filter, such as a moon filter, a light pollution filter, or colored planetary filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the SV222 correct the image in a Newtonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This diagonal is designed for refractors, Maksutov-Cassegrains, and Schmidt-Cassegrains. Newtonian reflectors have a different optical design and typically do not have enough focus travel to accommodate a prism diagonal. You would not be able to reach focus with the SV222 in a standard Newtonian.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSV222\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e1.25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e90° Prism Diagonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Material\u003c\/td\u003e\n\u003ctd\u003eBK7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Orientation\u003c\/td\u003e\n\u003ctd\u003eErect image, non-reversed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeflection Angle\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e19mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eAnti-reflection coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eCNC Metal Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Side Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Thread\u003c\/td\u003e\n\u003ctd\u003eM28.5x0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003eappr. 65.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e153.8g \/ 5.43oz\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\"\u003eSV222 1.25\" 90° Metal Correct Image Prism Diagonal\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM4 Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Plug\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":52861237756189,"sku":"SV-W9179B","price":91.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV222-1-25-90-Erect-Prism-Diagonal-AR-Coating-Metal-Mount-1_987b12dc-40aa-494c-9004-844259ce7c79.jpg?v=1788883625"},{"product_id":"svbony-sv223-90-clicklock-dielectric-mirror-diagonal-125in","title":"SVBONY SV223 90° ClickLock Dielectric Mirror Diagonal - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReflects over 99% of incoming light with a lab-tested dielectric coating\u003c\/li\u003e\n\u003cli\u003eFeatures a 1.25\" Clicklock mechanism for fast, secure eyepiece changes\u003c\/li\u003e\n\u003cli\u003eProvides a comfortable 90° viewing angle for refractors and SCTs\u003c\/li\u003e\n\u003cli\u003e25mm clear aperture minimizes vignetting with low-power 1.25\" eyepieces\u003c\/li\u003e\n\u003cli\u003eAccepts standard 1.25\" filters with M28.5x0.6 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\u003eDownloads\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 SV223 1.25\" 90° Clicklock Dielectric Diagonal Mirror\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV223 1.25\" 90° Clicklock Dielectric Diagonal Mirror combines a lab-tested dielectric mirror with \u0026gt;99% reflectivity and a secure Clicklock clamping system. This design directs the maximum amount of light from your telescope to your eyepiece through its 25mm clear aperture, providing brighter, higher-contrast views than standard diagonals. The robust metal body adds only 249g to your optical train while ensuring your eyepieces are held with absolute stability.\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 SV223's \u0026gt;99% Reflectivity Dielectric Mirror\u003c\/h3\u003e\n\u003cp\u003eAt the core of the SV223 is a precision 11.5mm thick optical flat mirror with a multi-layer dielectric coating. This advanced coating achieves over 99% reflectivity across the visual spectrum, preventing the light loss common in standard aluminum or silver-coated diagonals. The result is a tangible increase in image brightness and contrast, allowing you to resolve finer details on planets and detect fainter stars in clusters.\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\u003eInstant Security: The 1.25\" Clicklock Clamping System\u003c\/h3\u003e\n\u003cp\u003eFumbling with small thumbscrews in the dark is eliminated with the SV223's Clicklock mechanism. A simple twist of the outer ring engages a three-point clamp, securely centering and locking your 1.25\" eyepiece or accessory in place without marring the barrel. This system provides a solid, repeatable connection that maintains perfect alignment, critical for high-magnification planetary viewing or imaging.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Clamping Action:\u003c\/strong\u003e Lock or release any 1.25\" accessory in seconds with a gentle twist, even while wearing gloves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamage-Free Design:\u003c\/strong\u003e The internal compression ring grips the eyepiece barrel evenly, avoiding the scratches and dents caused by single thumbscrews.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaffled Interior:\u003c\/strong\u003e The metal housing is internally baffled and blackened to absorb stray light, further enhancing image contrast by preventing internal reflections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSV223 Dielectric vs. Standard Diagonals: A Clear Upgrade\u003c\/h3\u003e\n\u003cp\u003eCompared to a standard prism or aluminum-coated mirror diagonal, the SV223 offers a significant step up in optical and mechanical stability. While a standard diagonal might reflect 88-92% of light, the SV223's \u0026gt;99% dielectric coating delivers a noticeably brighter image at the eyepiece.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Aluminum Mirror:\u003c\/strong\u003e Typically has lower reflectivity and is prone to degradation over time, reducing brightness and contrast. The SV223's dielectric coating is far more durable and maintains its reflectivity for years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrism Diagonal:\u003c\/strong\u003e Can introduce chromatic aberration in fast telescopes (below f\/7), whereas the SV223 mirror is color-neutral at any focal ratio.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThumbscrew Clamp:\u003c\/strong\u003e A single thumbscrew can cause eyepiece tilt and damage barrels. The SV223's Clicklock ensures perfect centering and a secure, damage-free grip every time.\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\"\u003eWhat is the main advantage of the SV223's Clicklock system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage of the \u003cstrong\u003eClicklock clamping system\u003c\/strong\u003e is its ability to securely and perfectly center any 1.25\" eyepiece with a simple twist. This eliminates the risk of eyepiece tilt that can occur with single-thumbscrew diagonals and prevents scratches or dents on your eyepiece barrels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the SV223's \u0026gt;99% reflectivity affect views of Jupiter in my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn an 8\" SCT, the SV223's \u0026gt;99% reflectivity provides a visibly brighter image of Jupiter compared to a standard diagonal with ~90% reflectivity. This increased light throughput enhances the contrast of subtle features like the Great Red Spot (GRS) and delicate cloud bands, making them easier to resolve at high magnification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs a dielectric mirror like the one in the SV223 better than a prism diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor most telescopes, especially \"fast\" refractors or Newtonians (f\/7 or lower), a dielectric mirror diagonal like the SV223 is superior. It introduces zero chromatic aberration (false color), unlike a prism which can create color fringing on bright objects in fast optical systems. The SV223's mirror design ensures color-pure images regardless of your telescope's focal ratio.\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 SV223 diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 1.25\" nosepiece of the SV223 diagonal has standard \u003cstrong\u003eM28.5x0.6 threads\u003c\/strong\u003e, allowing you to attach any 1.25\" astronomical filter, such as a moon filter, light pollution filter, or planetary color filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SV223's 25mm clear aperture cause vignetting with my 32mm Plössl eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. A 32mm Plössl eyepiece has a field stop of approximately 27mm, but since it is placed after the diagonal, the diagonal's \u003cstrong\u003e25mm clear aperture\u003c\/strong\u003e is sufficient to fully illuminate the field of view without causing vignetting. It is well-matched for all standard 1.25\" eyepiece designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the optical length of the SV223 and why does it matter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV223 has an \u003cstrong\u003eoptical length of approximately 85.5mm\u003c\/strong\u003e. This is the amount of light path it adds to your telescope's focal plane. This is a standard length for 1.25\" diagonals and should allow most refractors and SCTs to reach focus without issue. However, for some Newtonians not designed for visual use, you may need to check your focuser's travel range.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSV223\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeflection Angle\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eMirror Diagonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReflectivity\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReflection Surface\u003c\/td\u003e\n\u003ctd\u003eDielectrically Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eClicklock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads (Lens Side)\u003c\/td\u003e\n\u003ctd\u003eM28.5x0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Orientation\u003c\/td\u003e\n\u003ctd\u003eErect image, Mirror Inverted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003eapprox. 85.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Thickness\u003c\/td\u003e\n\u003ctd\u003e11.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e249g \/ 8.78oz\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\"\u003eSV223 1.25\" 90° Clicklock Dielectric Diagonal Mirror\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM4 Screw\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap (Eyepiece Side)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Plug (Barrel Side)\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\u003cli\u003e\n\u003cp\u003eThis accessory does not require software or a dedicated manual for operation.\u003c\/p\u003e\n\u003c\/li\u003e\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":52861237788957,"sku":"SV-W9180A","price":130.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV223-1-25-90-Clicklock-Dielectric-Diagonal-Mirror-1_8c17c21e-19dd-4563-a0d2-a665fb600186.jpg?v=1788883638"},{"product_id":"svbony-sv223-90-clicklock-dielectric-mirror-diagonal-2in","title":"SVBONY SV223 90° ClickLock Dielectric Mirror Diagonal - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFeatures a 2-inch barrel with a \u0026gt;99% reflectivity dielectric mirror\u003c\/li\u003e\n\u003cli\u003eConvenient Clicklock clamping mechanism for secure eyepiece attachment\u003c\/li\u003e\n\u003cli\u003eDeflects light at a 90° angle for comfortable viewing\u003c\/li\u003e\n\u003cli\u003eIncludes a 2-inch to 1.25-inch adapter for wide accessory compatibility\u003c\/li\u003e\n\u003cli\u003eNosepiece is threaded for standard M48x0.75 2-inch 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\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 SV223 2\" 90° Clicklock Dielectric Telescope Diagonal\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV223 diagonal combines a high-efficiency optical system with a modern clamping mechanism, delivering bright, high-contrast images through a secure, non-marring interface. Its dielectric mirror provides greater than 99% reflectivity across the visual spectrum, while the 11.5mm thick mirror substrate ensures thermal and mechanical stability. A generous 43mm clear aperture minimizes vignetting with wide-field 2-inch eyepieces, and the entire optical path is housed within a rigid metal body with an optical length of approximately 109.1mm.\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\u003e\u0026gt;99% Reflectivity from a 11.5mm Thick Dielectric Mirror\u003c\/h3\u003e\n\u003cp\u003eAt the core of the SV223 is a dielectric-coated mirror engineered for maximum light throughput. With a measured reflectivity of over 99%, it transmits nearly all collected light to your eyepiece, resulting in brighter views of faint deep-sky objects and higher contrast on planetary surfaces. The 11.5mm thick mirror provides a rigid, stable optical surface that resists flexure and maintains flatness for sharp, detailed images.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDielectric Coatings:\u003c\/strong\u003e Unlike standard aluminum or silver coatings that can degrade over time, dielectric layers are highly durable and maintain their \u0026gt;99% reflectivity for years of use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Contrast Baffling:\u003c\/strong\u003e The interior of the diagonal is machined with anti-reflection baffling to absorb stray light, ensuring a dark background sky and improving contrast during lunar and planetary observation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e43mm Clear Aperture:\u003c\/strong\u003e The large clear aperture prevents the light cone from being clipped, fully illuminating the field stop of even the widest 2-inch eyepieces.\u003c\/li\u003e\n\u003c\/ul\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 SV223 Clicklock System: Secure, Centered Clamping\u003c\/h3\u003e\n\u003cp\u003eThe Clicklock mechanism replaces traditional thumbscrews with a fast, secure, and self-centering clamping system. A simple twist of the knurled ring locks or unlocks your eyepiece, applying even pressure around the barrel for a solid connection that eliminates wobble and protects your accessories from scratches.\u003c\/p\u003e\n\u003cp\u003eThis system is especially useful for imagers and visual observers who frequently change eyepieces or cameras. The brass compression ring ensures a firm grip without marring the eyepiece barrel, preserving the value and condition of your equipment. An internal safety stop also prevents long eyepiece barrels from making contact with the mirror surface.\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\u003eM48 Threads and 1.25-inch Adapter for Full System Integration\u003c\/h3\u003e\n\u003cp\u003eThe Svbony SV223 is designed for broad compatibility with modern telescope systems. The 2-inch nosepiece features standard M48x0.75 filter threads, allowing you to attach nebula, light pollution, or color filters directly to the diagonal for system-wide filtration.\u003c\/p\u003e\n\u003cp\u003eFor observers with a mixed collection of eyepieces, the included 2-inch to 1.25-inch adapter provides seamless integration. This heavy-duty adapter also uses a non-marring brass compression ring, extending the same protection to your 1.25-inch accessories. The 90° viewing angle provides a comfortable observing position, reducing neck strain when viewing objects high in the sky.\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 SV223 vs. Baader Clicklock: A Comparative Look\u003c\/h3\u003e\n\u003cp\u003eThe Baader Planetarium 2\" ClickLock diagonal is the established benchmark for this type of accessory, known for its exceptional German-made optical and mechanical precision. The Svbony SV223 adopts the same core concepts—a dielectric mirror and a twist-lock clamping mechanism—to offer a similar user experience at a more accessible price point.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompetitor Advantage (Baader):\u003c\/strong\u003e Baader diagonals typically specify a higher optical surface flatness (e.g., 1\/10λ) and are manufactured to extremely tight tolerances, which can provide a slight edge in image sharpness at very high magnifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis Product's Advantage (Svbony SV223):\u003c\/strong\u003e The SV223 provides the key functional benefits of a Clicklock system and a \u0026gt;99% reflective dielectric mirror, making it a significant upgrade over standard diagonals. For most visual applications, it delivers comparable brightness and convenience for a fraction of the cost of the premium alternative.\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\"\u003eWhat is the main benefit of the SV223's Clicklock system over thumbscrews?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Clicklock system on the Svbony SV223 provides a more secure, self-centering grip on your eyepieces. Unlike thumbscrews that can cause tilt and scratch the barrel, the Clicklock's brass compression ring applies uniform pressure with a simple twist, ensuring perfect alignment and protecting your accessories from damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the \u0026gt;99% reflectivity of the SV223 help when viewing the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard aluminum diagonal might reflect only 88-92% of the light. The Svbony SV223's \u0026gt;99% reflectivity dielectric mirror transmits significantly more of the faint light from M42 to your eye. This results in a brighter image, allowing you to see more of the faint, extended nebulosity and potentially resolve finer detail within the Trapezium star cluster.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Svbony SV223 diagonal work with my 8\" SCT and 2\" eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the SV223 is an excellent choice for a Schmidt-Cassegrain Telescope (SCT). It fits directly into the 2-inch visual back of most SCTs and its 43mm clear aperture is large enough to prevent vignetting with wide-field 2-inch eyepieces. The 90° angle is ideal for the comfortable viewing posture required with an SCT on an equatorial mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"mirror inverted\" mean for the SV223's image orientation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV223 produces an image that is correctly oriented up-and-down (erect image) but is reversed left-to-right (mirror inverted). This is normal for all mirror diagonals and is perfectly fine for astronomical viewing, as there is no \"correct\" left or right in space. However, it is not ideal for terrestrial viewing where you need a fully corrected image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2\" filters with the Svbony SV223 diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2-inch nosepiece of the SV223 that inserts into your telescope's focuser is threaded with standard M48x0.75 threads. This allows you to screw in any standard 2-inch astronomy filter, such as a UHC or O-III filter for nebula viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the included 1.25\" adapter on the SV223 also non-marring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 2-inch to 1.25-inch adapter included with the SV223 also features a brass compression ring. This ensures that both your 2-inch and 1.25-inch eyepieces are protected from the scratches and gouges that can be caused by traditional set-screw designs.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSV223\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e90° Mirror Diagonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e43mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReflectivity\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReflection Surface\u003c\/td\u003e\n\u003ctd\u003eDielectrically Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Thickness\u003c\/td\u003e\n\u003ctd\u003e11.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eClicklock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Side Connection\u003c\/td\u003e\n\u003ctd\u003e2-inch Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Connection\u003c\/td\u003e\n\u003ctd\u003e2-inch Barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eM48x0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003eapprox. 109.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Orientation\u003c\/td\u003e\n\u003ctd\u003eErect image, Mirror Inverted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e573.7g (20.24oz)\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\"\u003eSV223 2\" 90° Clicklock Dielectric Diagonal Mirror\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM4 Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Plug\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":52861237821725,"sku":"SV-W9180B","price":151.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV223-2-90-Clicklock-Dielectric-Telescope-Diagonal-1_2c9fe056-b1cd-4aa4-b004-7842daefb1a0.jpg?v=1788883648"},{"product_id":"svbony-metal-telescope-cellphone-holder-bracket-for-24-38mm-eyepieces","title":"SVBONY Metal Telescope Cellphone Holder Bracket for 24-38mm Eyepieces","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEyepiece Compatibility: 24-38mm Diameter\u003c\/li\u003e\n\u003cli\u003eSmartphone Width: 60-95mm\u003c\/li\u003e\n\u003cli\u003e360° Camera Rotation\u003c\/li\u003e\n\u003cli\u003eDurable Metal Construction\u003c\/li\u003e\n\u003cli\u003eFoam-Padded Phone Protection\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\u003eDownloads\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 Metal Telescope Cellphone Holder Bracket\u003c\/h2\u003e\n\u003cp\u003eThe Svbony Metal Telescope Cellphone Holder Bracket connects smartphones from 60mm to 95mm wide to any eyepiece with an outer diameter between 24mm and 38mm. This range covers standard 0.965\" and 1.25\" telescope eyepieces, while the full 360° rotation ensures perfect alignment between your phone's camera and the optical axis for sharp, centered images.\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\u003eUniversal Eyepiece Grip: Securely Mounts to any 24-38mm Eyepiece\u003c\/h3\u003e\n\u003cp\u003eThis adapter's core is a robust metal clamp designed for a wide range of optics. Its 24-38mm clamping range accommodates not just standard 0.965\" and 1.25\" telescope eyepieces, but also many microscope, binocular, and monocular eyepieces. The all-metal construction provides a rigid, flex-free connection to your instrument, which is critical for preventing image shift during long exposures or video capture.\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\u003eAdjustable 60-95mm Phone Clamp: Fits Most Modern Smartphones\u003c\/h3\u003e\n\u003cp\u003eThe phone holder expands to grip any smartphone between 60mm and 95mm (2.36 to 3.74 inches) wide, covering the vast majority of modern devices, even with their cases on. A high-friction foam padding system lines the clamp, holding your phone securely in place without scratching its finish. This secure grip ensures your phone remains stationary and safe, even when the telescope is pointed at a high angle.\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\u003eFull 360° Rotation for Precise Camera Alignment\u003c\/h3\u003e\n\u003cp\u003eAchieving a perfect image requires precise alignment of your phone's camera lens with the eyepiece's exit pupil. The Svbony holder's 360° rotational adjustment makes this simple. You can easily rotate the phone to center the camera, eliminating vignetting and ensuring a fully illuminated field of view, and quickly switch between portrait and landscape orientation without unclamping your device.\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\"\u003eWill the Svbony Cellphone Holder fit my standard 1.25\" Plössl eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. A standard 1.25\" eyepiece has an outer diameter that falls well within the \u003cstrong\u003e24-38mm range\u003c\/strong\u003e of the Svbony holder's clamp, ensuring a secure fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy smartphone is 85mm wide. Will the Svbony bracket hold it securely?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The phone clamp is designed to hold devices from \u003cstrong\u003e60mm to 95mm\u003c\/strong\u003e in width. An 85mm phone will fit comfortably and be held securely by the foam-padded grips.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony Metal Holder for taking pictures of the Moon with my 8\" Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This is an ideal application for the holder. Its metal construction provides the stability needed for sharp lunar photography, and the \u003cstrong\u003e360° rotation\u003c\/strong\u003e will allow you to perfectly center your camera on the eyepiece to capture the entire lunar disc or specific craters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat protects my phone from scratches in the Svbony Holder?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe holder features a \u003cstrong\u003efoam friction system\u003c\/strong\u003e on its clamping surfaces. This material grips your phone tightly to prevent slipping while providing a soft cushion that protects your phone's body and screen from scratches or damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I align my phone's camera perfectly with the Svbony bracket?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, clamp the holder to your eyepiece. Then, place your phone in the holder and turn on your camera app. Look at the phone screen and use the \u003cstrong\u003e360° rotation\u003c\/strong\u003e feature to move the phone until you see a perfectly round, bright circle of light in the center of your screen. This indicates your camera is aligned with the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Svbony adapter with my microscope for looking at slides?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Many microscope eyepieces, including the common \u003cstrong\u003e23.2mm\u003c\/strong\u003e standard, fit within the holder's 24-38mm clamping range. This allows you to easily capture and share images or videos of specimens directly from your microscope.\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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSvbony Metal Telescope Cellphone Holder Bracket\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\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\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":52861247029533,"sku":"SV-F9112A","price":15.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-Metal-Telescope-Cellphone-Holder-Bracket-for-24-38mm-Eyepiece-1_42e16e75-9d92-450e-88c9-1b9d7e26a862.jpg?v=1788660559"},{"product_id":"svbony-sv214-pro-3-axis-phone-adapter-universal-clamp-28mm-48mm","title":"SVBONY SV214 Pro 3-Axis Phone Adapter Universal Clamp 28mm-48mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e3–Axis fine adjustment for precise camera alignment\u003c\/li\u003e\n\u003cli\u003eFits phones with a width of 55-105mm\u003c\/li\u003e\n\u003cli\u003eClamps to eyepieces with a diameter of 44-64mm\u003c\/li\u003e\n\u003cli\u003eFully metal construction for stability\u003c\/li\u003e\n\u003cli\u003eNet weight of approximately 320g\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 SV214 Pro 3-Axis Phone Adapter 28mm-64mm Digiscoping Mount\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV214 Pro 3-Axis Phone Adapter transforms digiscoping with its fully metal frame, supporting nearly any smartphone with a width from 55-105mm. It securely clamps onto eyepieces ranging from 44-64mm in diameter, while the precise 3-axis adjustment system ensures perfect optical alignment for any compatible telescope, binocular, or spotting scope. Weighing approximately 320g, its robust construction provides a stable, repeatable platform, eliminating the flex and vibration common in plastic adapters.\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\u003eSecure Clamping for Phones (55-105mm) and Eyepieces (44-64mm)\u003c\/h3\u003e\n\u003cp\u003eThe SV214 Pro accommodates a vast range of devices, securely holding smartphones from 55-105mm wide with an easy-to-use spring-loaded clamp. The eyepiece clamp is equally versatile, gripping any eyepiece with an outer diameter between 44-64mm. This broad compatibility ensures you can use the adapter across your entire collection of optics, from telescopes and spotting scopes to binoculars and monoculars, without needing multiple device-specific mounts.\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\u003e3-Axis Micro-Adjustment for Perfect Optical Alignment\u003c\/h3\u003e\n\u003cp\u003eThe core of the SV214 Pro is its 3-axis adjustment mechanism, which allows for micrometer-level control over camera placement. You can independently adjust the X (horizontal), Y (vertical), and Z (forward\/backward) position of your phone. This level of control is critical for centering the camera lens perfectly over the eyepiece's exit pupil, eliminating vignetting and ensuring a sharp, fully illuminated image across the entire field of view.\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\u003eAll-Metal Construction for 320g of Rock-Solid Stability\u003c\/h3\u003e\n\u003cp\u003eCrafted from a single piece of CNC-machined aluminum alloy, the SV214 Pro weighs approximately 320g and offers exceptional rigidity. Unlike plastic adapters that can flex under the weight of a phone or during adjustment, this fully metal design resists bending and wear. The result is a completely stable platform that holds your alignment shot after shot, preventing the frustrating drift and vibration that can ruin a great digiscoping opportunity.\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\u003eSV214 Pro vs. Basic Smartphone Adapters: The 3-Axis Advantage\u003c\/h3\u003e\n\u003cp\u003eWhile basic adapters can get your phone onto an eyepiece, achieving perfect alignment is often a frustrating process of trial and error. The SVBONY SV214 Pro solves this with its deliberate, repeatable 3-axis control.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBasic Adapters:\u003c\/strong\u003e Often rely on a single clamp and friction, making fine adjustments nearly impossible. The camera can easily slip out of alignment when tightening the lock screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSVBONY SV214 Pro:\u003c\/strong\u003e Allows you to lock down the main clamp and then use the separate X, Y, and Z knobs to dial in the perfect position. This methodical approach saves time in the field and ensures your camera stays precisely where you put it.\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\"\u003eWhat size phones and eyepieces does the SVBONY SV214 Pro fit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV214 Pro is highly versatile. It can hold smartphones with a \u003cstrong\u003ewidth between 55mm and 105mm\u003c\/strong\u003e and securely clamps onto any eyepiece with an \u003cstrong\u003eouter diameter of 44mm to 64mm\u003c\/strong\u003e. This covers most modern smartphones and a wide range of standard telescope, spotting scope, and binocular eyepieces.\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 3-axis adapter like the SV214 Pro over a cheaper one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe key advantage is \u003cstrong\u003eprecision and repeatability\u003c\/strong\u003e. Cheaper adapters often only allow for rough positioning, leading to vignetting (dark corners) and frustration. The SVBONY SV214 Pro's 3-axis system lets you independently control horizontal, vertical, and focus-depth alignment, making it simple to perfectly center your phone's camera over the eyepiece for a sharp, complete image every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I align my smartphone with the SVBONY SV214 Pro on my 8\" SCT to photograph the Moon?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, clamp the SV214 Pro securely onto your eyepiece. Place your phone in the holder and turn on the camera app. Look at your phone screen and use the large X and Y adjustment knobs to move the bright circle of light from the eyepiece into the center of the screen. Finally, use the Z-axis knob to move the phone closer or further from the eyepiece until the view is sharp and fills the screen without dark edges. This precise control is ideal for capturing crisp lunar details with an SCT.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV214 Pro's 320g weight a concern for my small refractor telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e320g weight\u003c\/strong\u003e, combined with a smartphone, can be a consideration for smaller telescopes or lightweight mounts. While the metal construction is essential for stability, it does add mass. Always ensure your telescope's focuser drawtube is locked and that your mount is properly balanced after attaching the adapter and phone to prevent slipping or strain on the mechanics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the SVBONY SV214 Pro be used with binoculars for birdwatching?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. As long as your binocular eyepieces have an outer diameter between 44mm and 64mm, the SVBONY SV214 Pro will clamp on securely. The 3-axis adjustment is particularly useful for aligning with the smaller exit pupils of binoculars, allowing you to capture stable, high-magnification photos and videos of distant wildlife.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does 'fully metal' construction mean for the SVBONY SV214 Pro's stability?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003efully metal\u003c\/strong\u003e design means the adapter resists flexing and vibration, which is a common point of failure in plastic adapters. When you tap your phone screen to take a picture or when a light breeze blows, the rigid frame of the SVBONY SV214 Pro helps keep the camera perfectly steady, resulting in sharper images and less frustration.\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\u003eAdjustment Style\u003c\/td\u003e\n\u003ctd\u003e3–Axis Fine Adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFully Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhone Clamp Range\u003c\/td\u003e\n\u003ctd\u003e55-105mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Clamp Range\u003c\/td\u003e\n\u003ctd\u003e44-64mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhone Clamp Style\u003c\/td\u003e\n\u003ctd\u003eEasy load with internal spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Optics\u003c\/td\u003e\n\u003ctd\u003eTelescope, Binocular, Spotting Scope, Monocular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003eApprox. 320g\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\"\u003eSVBONY SV214 Pro 3-Axis Phone Adapter\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":52861253845277,"sku":"SV-W9176A","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV214-Pro-3-Axis-Phone-Adapter-28mm-64mm-Digiscoping-Mount-1_0b513afb-a838-40d0-9ef9-b32c9bfee8e4.jpg?v=1788660591"},{"product_id":"svbony-sv214-pro-3-axis-phone-adapter-universal-clamp-44mm-64mm","title":"SVBONY SV214 Pro 3-Axis Phone Adapter Universal Clamp 44mm-64mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e3-Axis fine adjustment for precise optical alignment\u003c\/li\u003e\n\u003cli\u003eSecurely clamps eyepieces from 44mm to 64mm in diameter\u003c\/li\u003e\n\u003cli\u003eAccommodates smartphones from 55mm to 105mm wide\u003c\/li\u003e\n\u003cli\u003eFully metal construction for maximum stability\u003c\/li\u003e\n\u003cli\u003eWeighs approximately 320g\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 SV214 Pro 3-Axis Phone Adapter\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV214 Pro 3-Axis Phone Adapter transforms digiscoping with its fully metal, 320g frame designed for absolute stability. Its 3-axis fine adjustment system allows for micrometer-precise optical alignment, accommodating eyepieces from 44mm to 64mm in diameter. The spring-loaded clamp securely holds smartphones between 55mm and 105mm wide, providing a rigid platform for capturing sharp images through your telescope, spotting scope, or binoculars.\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\u003e3-Axis Alignment: Precision Centering for Sharp Digiscoping\u003c\/h3\u003e\n\u003cp\u003eUnlike basic adapters that only adjust vertically, the SV214 Pro provides fine control over the X, Y, and Z axes. This multi-directional system lets you perfectly center your phone's camera over the eyepiece's exit pupil, eliminating vignetting and ensuring edge-to-edge sharpness. Smooth, geared knobs allow you to make minute adjustments without loosening the clamps, saving you from the frustrating trial-and-error of simpler designs.\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\u003eWide Compatibility: Fits Phones up to 105mm and Eyepieces up to 64mm\u003c\/h3\u003e\n\u003cp\u003eThe SV214 Pro is engineered to work with a vast array of equipment. The phone clamp opens from 55mm to 105mm, accommodating nearly every modern smartphone, even in a case. The robust eyepiece clamp securely grips any eyepiece with an outer diameter between 44mm and 64mm, making it compatible with many popular 1.25\" and 2\" eyepieces on telescopes, spotting scopes, monoculars, and even some binoculars.\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\u003eAll-Metal Construction: A 320g CNC-Machined Platform\u003c\/h3\u003e\n\u003cp\u003eThe entire frame of the SV214 Pro is CNC-machined from aluminum alloy, creating a rigid, flex-free structure. At approximately 320g, its substantial build dampens vibrations and prevents the phone from sagging, a common failure point in plastic adapters that ruins long exposures. This solid platform ensures that once you achieve perfect alignment, it stays locked in for the duration of your imaging session.\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\u003eSV214 Pro vs. Basic Adapters: The Value of 3-Axis Control\u003c\/h3\u003e\n\u003cp\u003eBasic phone adapters force you to achieve alignment by physically sliding the phone around before tightening a screw, an imprecise and frustrating process. The SV214 Pro's design is fundamentally superior.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBasic Adapters:\u003c\/strong\u003e You clamp the phone and eyepiece, then manually push the phone into position. The act of tightening the lock screw often ruins the alignment, forcing you to start over.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSVBONY SV214 Pro:\u003c\/strong\u003e You securely clamp the phone and eyepiece first. Then, you use the three independent fine-adjustment knobs to smoothly and precisely guide the camera into the perfect position, with no shifting or slipping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis system turns a tedious task into a quick, repeatable process, letting you spend more time capturing images and less time fighting with your gear.\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\"\u003eWill the SVBONY SV214 Pro fit my iPhone 15 Pro Max and my standard 1.25\" Plössl eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The phone clamp range of \u003cstrong\u003e55mm to 105mm\u003c\/strong\u003e easily accommodates large phones like the iPhone 15 Pro Max. Most 1.25\" eyepieces have an outer body diameter that falls well within the adapter's \u003cstrong\u003e44mm to 64mm\u003c\/strong\u003e eyepiece clamp range, ensuring a secure fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 3-axis adjustment on the SV214 Pro help when imaging the Moon through my spotting scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging a bright object like the Moon, perfect centering is critical for even illumination and sharpness. The \u003cstrong\u003e3-axis adjustment\u003c\/strong\u003e allows you to eliminate any black crescents (vignetting) at the edge of the view by precisely positioning the phone's camera lens in the eyepiece's light path. You can fine-tune the X and Y axes for centering and the Z axis for focus, resulting in a much cleaner final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV214 Pro made of plastic or metal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV214 Pro is \u003cstrong\u003efully metal\u003c\/strong\u003e, constructed from CNC-machined aluminum alloy. This provides a rigid, stable platform that resists flexing and vibration, which is crucial for sharp astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the maximum eyepiece diameter the SV214 Pro can clamp onto?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe eyepiece clamp on the SV214 Pro can accommodate eyepieces with an outer body diameter up to \u003cstrong\u003e64mm\u003c\/strong\u003e. This covers most 1.25\" eyepieces and many larger 2\" models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV214 Pro with binoculars?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, as long as the eyepiece on your binoculars has an outer diameter between \u003cstrong\u003e44mm and 64mm\u003c\/strong\u003e and you have enough clearance to mount the adapter. It works well for capturing terrestrial views or wide-field sky shots through one side of the binocular.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much does the SV214 Pro adapter weigh and will it affect my telescope's balance?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter weighs approximately \u003cstrong\u003e320g\u003c\/strong\u003e (about 0.7 lbs). While relatively light, its weight combined with a heavy smartphone can affect the balance of a lightly mounted telescope. You may need to adjust your counterweights or reposition the optical tube to ensure smooth tracking.\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\u003eFine Adjustment Style\u003c\/td\u003e\n\u003ctd\u003e3–Axis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhone Clamp Range\u003c\/td\u003e\n\u003ctd\u003e55-105mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Clamp Range\u003c\/td\u003e\n\u003ctd\u003e44-64mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuild Materials\u003c\/td\u003e\n\u003ctd\u003eFully Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhone Clamp Style\u003c\/td\u003e\n\u003ctd\u003eEasy load with internal spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Optics\u003c\/td\u003e\n\u003ctd\u003eTelescope, Binocular, Spotting Scope and Monocular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003eApprox. 320g\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\"\u003eSV214 Pro 3-Axis Phone Adapter\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":52861255680285,"sku":"SV-W9176B","price":60.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV214-Pro-3-Axis-Phone-Adapter-28mm-64mm-Digiscoping-Mount-1-W9176B_f79801c7-44c5-45bd-a593-38122c2598ff.jpg?v=1788660607"},{"product_id":"svbony-sv214-classic-photography-adapter-for-smartphone","title":"SVBONY SV214 Classic Photography Adapter for Smartphone","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects smartphones from 55mm to 100mm wide\u003c\/li\u003e\n\u003cli\u003eFits eyepieces with a 25mm to 48mm outer diameter\u003c\/li\u003e\n\u003cli\u003eCompatible with most 1.25\" telescope eyepieces\u003c\/li\u003e\n\u003cli\u003eDurable aluminum alloy and high-strength PA plastic construction\u003c\/li\u003e\n\u003cli\u003eSteel bolt locking mechanism for a secure, non-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 SV214 Classic Photography Adapter for Smartphone\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV214 Classic Photography Adapter connects smartphones ranging from 55mm to 100mm in width to any optical instrument with a 25mm to 48mm diameter eyepiece. Its aluminum alloy frame and adjustable steel bolt locking mechanism create a rigid, stable platform for capturing high-quality images through telescopes, binoculars, or microscopes without instrument-induced vibration.\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\u003eUniversal Smartphone Clamp: A 55-100mm Secure, Padded Grip\u003c\/h3\u003e\n\u003cp\u003eThe SV214's clamp accommodates a wide range of smartphones, from smaller models to large flagships, with its adjustable 55mm to 100mm width. Unlike spring-loaded designs that can weaken or slip, this adapter uses a robust steel bolt locking mechanism, allowing you to tighten the clamp for a secure, repeatable fit. High-density EVA pads line the clamp, protecting your phone's chassis from scratches while ensuring a firm grip.\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\u003eBroad Optical Compatibility: Fits Any 25-48mm Diameter Eyepiece\u003c\/h3\u003e\n\u003cp\u003eThis adapter's eyepiece clamp is engineered to fit any eyepiece with an outer diameter between 25mm and 48mm. This range covers nearly all standard 1.25\" telescope eyepieces, as well as those found on most binoculars, spotting scopes, and microscopes. This makes the SV214 a single solution for afocal photography across all your optical instruments, though it is not designed to fit larger 2\" 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\u003eAll-Metal Construction for Stable, Flex-Free Imaging\u003c\/h3\u003e\n\u003cp\u003eThe main body of the SV214 is machined from a lightweight and durable aluminum alloy. This all-metal construction prevents the flexure and vibration common in all-plastic adapters, which is critical for achieving sharp focus in astronomical or microscopic photos. The combination of a metal frame and a high-strength PA plastic phone clamp delivers a stable imaging platform that holds your device securely aligned with the optical axis.\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\"\u003eWill the SVBONY SV214 adapter fit my large smartphone like an iPhone Pro Max or Samsung Galaxy Ultra?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The SVBONY SV214 adapter has a phone clamp range of \u003cstrong\u003e55mm to 100mm\u003c\/strong\u003e. This is wide enough to accommodate most modern smartphones, including larger \"Max\" or \"Ultra\" models, even with a thin case on.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SV214 adapter with 2-inch telescope eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The SV214 is designed for eyepieces with an outer diameter of \u003cstrong\u003e25mm to 48mm\u003c\/strong\u003e, which covers standard 1.25\" eyepieces and most binocular\/microscope eyepieces. It will not fit the larger barrel of a 2-inch eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SV214's locking mechanism differ from spring-loaded adapters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV214 uses a \u003cstrong\u003emanual steel bolt locking mechanism\u003c\/strong\u003e. Unlike a spring, which can exert uneven pressure or weaken over time, the bolt allows you to apply precise, consistent clamping force. This creates a more secure and stable connection to your phone, reducing the risk of slippage during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of images can I take with the SVBONY SV214 on my 8\" Dobsonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAn 8\" Dobsonian is an excellent instrument for use with the SV214. You can capture surprisingly detailed images of the Moon's craters and seas, the cloud bands of Jupiter and its Galilean moons, and the rings of Saturn. With patience and good seeing conditions, you can achieve impressive results on the brightest planetary targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SV214 adapter suitable for attaching my phone to a microscope to view slides?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The SV214's 25mm to 48mm eyepiece clamp range is ideal for standard microscope eyepieces. It provides a stable platform to align your phone's camera with the eyepiece, allowing you to capture high-magnification photos and videos of specimen slides for school projects, research, or hobbyist exploration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I protect my phone from scratches when using the SV214 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV214 is designed with phone protection in mind. The clamps that make contact with your phone are lined with \u003cstrong\u003ehigh-density EVA pads\u003c\/strong\u003e. These soft but firm pads grip your device securely without scratching the finish of its body or screen.\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\u003ePhone Clamp Width Range\u003c\/td\u003e\n\u003ctd\u003e55mm - 100mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Clamp Diameter Range\u003c\/td\u003e\n\u003ctd\u003e25mm - 48mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum alloy \u0026amp; PA Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\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\"\u003eSV214 Classic Photography Adapter\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":52861284778269,"sku":"SV-W2546A","price":11.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV214-Classic-Photography-Adapter-for-Smartphone-1_111a5803-5e96-4536-b00d-b8fc6b366b29.jpg?v=1788661329"},{"product_id":"svbony-sv218-universal-cell-phone-adapter-mount","title":"SVBONY SV218 Universal Cell Phone Adapter Mount","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts smartphones 62mm to 105mm wide\u003c\/li\u003e\n\u003cli\u003eClamps to eyepieces with a 38.5mm to 49.3mm diameter\u003c\/li\u003e\n\u003cli\u003eLightweight 77g design prevents imbalance\u003c\/li\u003e\n\u003cli\u003eDurable ABS, rubber, and metal construction\u003c\/li\u003e\n\u003cli\u003eMeasures 140mm x 80mm for easy transport\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\u003eDownloads\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 SV218 Universal Cell Phone Adapter Mount\u003c\/h2\u003e\n      \u003cp\u003eThe SVBONY SV218 Universal Cell Phone Adapter Mount turns your smartphone into a powerful imaging tool for your favorite optics. Its adjustable clamp securely holds phones from 62mm to 105mm wide, while the eyepiece chassis connects to any barrel between 38.5mm and 49.3mm in diameter. Constructed from durable ABS, rubber, and metal, the entire adapter weighs only 77g, adding minimal weight to your telescope, spotting scope, or binoculars for stable afocal photography.\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\u003eSecure Grip for Phones 62mm to 105mm Wide\u003c\/h3\u003e\n      \u003cp\u003eThe SV218 adapter features a robust clamping mechanism that accommodates nearly any modern smartphone, with or without a case. The adjustable grip expands from 62mm to 105mm, ensuring a firm hold on devices ranging from standard models to the largest phablets. This wide range means you can easily switch between different phones without needing a new adapter, making it a shareable tool for family members or club outreach events.\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\u003eAdapting to Optics from 38.5mm to 49.3mm\u003c\/h3\u003e\n      \u003cp\u003eThis adapter's core function is its ability to rigidly couple your phone's camera to an optical eyepiece. The chassis is designed to clamp onto any eyepiece with an outer diameter from 38.5mm to 49.3mm, covering the vast majority of standard 1.25\" and many 2\" eyepieces found on astronomical telescopes, spotting scopes like the SVBONY SV28 and SV411, and binoculars. The secure connection is critical for preventing slippage and maintaining the precise alignment needed for sharp images of the Moon, planets, or distant wildlife.\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 77g Build for Portability and Stability\u003c\/h3\u003e\n      \u003cp\u003eWeighing just 77g, the SV218 is engineered to be a lightweight addition to your field kit. Its low mass ensures it won't over-stress your focuser or upset the balance of your telescope or spotting scope, a crucial factor for maintaining tracking accuracy and stability. The combination of ABS plastic, protective rubber contact points, and a metal frame provides a durable structure that withstands regular use outdoors without adding unnecessary bulk.\u003c\/p\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\"\u003eWill the SVBONY SV218 adapter fit my large smartphone like an iPhone Pro Max?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The SV218 adapter clamp supports phone widths from \u003cstrong\u003e62mm to 105mm\u003c\/strong\u003e. Since most large smartphones, including the iPhone Pro Max series, fall well within this range (typically around 78mm wide), the adapter will hold it securely, even with a standard case on.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SV218 with my SVBONY SV28 spotting scope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. The SV218 is explicitly listed as compatible with the SV28 spotting scope. The adapter's eyepiece clamp range of \u003cstrong\u003e38.5mm to 49.3mm\u003c\/strong\u003e is designed to fit the eyepiece of the SV28, allowing you to easily capture photos and videos of wildlife or distant landscapes.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow much does the SV218 adapter weigh and will it unbalance my telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe SV218 weighs only \u003cstrong\u003e77g\u003c\/strong\u003e (about 2.7 ounces). This extremely low weight is intentional to prevent balance issues, especially on smaller telescopes or mounts. It adds negligible strain to the focuser and won't require significant re-balancing of your optical tube.\u003c\/p\u003e\n  \u003c\/div\u003e\n      \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat materials is the SVBONY SV218 made of?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe SV218 is constructed from a combination of materials for durability and function. It uses high-strength \u003cstrong\u003eABS plastic\u003c\/strong\u003e for the main body, soft \u003cstrong\u003erubber\u003c\/strong\u003e on the contact points to protect your phone and eyepiece from scratches, and \u003cstrong\u003emetal\u003c\/strong\u003e components in the clamping mechanism for rigidity and longevity.\u003c\/p\u003e\n  \u003c\/div\u003e\n      \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs it difficult to align my phone's camera with the eyepiece using the SV218?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAligning the camera can take a moment of practice. The key is to turn on your phone's camera app, look at the screen, and gently adjust the phone's position within the clamp until you see a full, circular field of view from the eyepiece. It's a manual process, but once aligned, the clamps hold it firmly in place.\u003c\/p\u003e\n  \u003c\/div\u003e\n        \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SV218 adapter to take pictures of the Moon with my 8\" Dobsonian telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is an excellent application for the SV218. Most standard 1.25\" eyepieces used with an 8\" Dobsonian have an outer diameter that fits within the adapter's \u003cstrong\u003e38.5mm to 49.3mm\u003c\/strong\u003e range. By clamping your phone to a low-power eyepiece, you can easily capture detailed images of the entire lunar disk.\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\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e77g\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e140 x 80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eABS, rubber, metal\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePhone Width Compatibility\u003c\/td\u003e\n\u003ctd\u003e62mm - 105mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEyepiece Clamp Diameter\u003c\/td\u003e\n\u003ctd\u003e38.5mm - 49.3mm (± 1mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompatible SVBONY Models\u003c\/td\u003e\n\u003ctd\u003eSV28, SV14, SV17, SV403, SV411, SV202, SM402, etc.\u003c\/td\u003e\n\u003c\/tr\u003e\n       \u003ctr\u003e\n\u003ctd\u003eIncluded Items\u003c\/td\u003e\n\u003ctd\u003eBracket, manual\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  \u003c\/ul\u003e\n\u003c\/li\u003e\n\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":52861285040413,"sku":"SV-W9169A","price":22.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV218-Universal-Cell-Phone-Adapter-Mount-1_975282be-8aba-48cc-8021-dbe2337499ed.jpg?v=1788661379"}],"url":"https:\/\/davidastro.com\/fr\/collections\/svbony-visual-accessories.oembed","provider":"David Astro","version":"1.0","type":"link"}