{"title":"SVBONY Field Flatteners, Reducers \u0026 Coma Correctors","description":"\u003cp\u003eSVBONY correctors and reducers adjust the focal length and field of a telescope for imaging or visual use. The SV193 0.8x reducer\/flattener in 2\" shortens the focal length while flattening the field for camera sensors, and the SV209 1.0x flattener is matched to the SV550 80mm f\/6. Two 1.25\" 0.5x focal reducers screw onto cameras or eyepieces for a wider view.\u003c\/p\u003e\u003cp\u003eThe SV199 ADC corrects atmospheric dispersion on planets low in the sky.\u003c\/p\u003e","products":[{"product_id":"svbony-0-5x-focal-reducer-125in","title":"SVBONY 0.5X Focal Reducer - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces telescope focal length by a 0.5x factor\u003c\/li\u003e\n\u003cli\u003eFits standard 1.25\" eyepieces and accessories\u003c\/li\u003e\n\u003cli\u003eThreads on via standard M28.5x0.6 filter threads\u003c\/li\u003e\n\u003cli\u003eFull metal aluminum alloy construction\u003c\/li\u003e\n\u003cli\u003ePure optical glass with anti-reflection coatings\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 0.5x Focal Reducer 1.25\" for Telescope Photography \u0026amp; Observing\u003c\/h2\u003e\n\u003cp\u003eThe Svbony 0.5x Focal Reducer transforms your telescope's capabilities by cutting its effective focal length in half, fitting into any standard 1.25\" eyepiece or camera nosepiece. This 0.5x reduction factor is achieved within a compact, 20mm tall all-metal housing that threads directly via a standard M28.5x0.6 interface.\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 0.5x Reduction Factor: Doubling Your Telescope's Field of View\u003c\/h3\u003e\n\u003cp\u003eBy halving your telescope's focal length, this reducer doubles the true field of view you see through the eyepiece. This wider perspective is essential for framing large deep-sky objects like the Andromeda Galaxy (M31) or the Pleiades star cluster (M45) that would otherwise be cut off. For astrophotography, the 0.5x reduction effectively converts an f\/10 system into a much faster f\/5 system, reducing required exposure times by a factor of four.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWider Vistas:\u003c\/strong\u003e Capture expansive nebulae and star fields in a single frame without creating a mosaic.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster Imaging:\u003c\/strong\u003e Gather more light in less time, minimizing the impact of tracking errors and improving signal-to-noise ratio on faint targets.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Contrast:\u003c\/strong\u003e Fully anti-reflection coatings on the optical lens improve light transmission and reduce internal reflections for a clearer, higher-contrast image.\n\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\u003eMechanical Design: All-Metal Build with M28.5x0.6 Threads\u003c\/h3\u003e\n\u003cp\u003eConstructed from a single piece of black-anodized aluminum alloy, the Svbony reducer is built for durability and to minimize stray light. Its design incorporates the universal M28.5x0.6 thread standard used for 1.25\" filters. This allows it to attach securely to the base of any standard 1.25\" eyepiece or camera nosepiece, becoming an integral part of your optical train.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Construction:\u003c\/strong\u003e The full metal body ensures a secure fit and protects the internal optics from misalignment.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Standard M28.5x0.6 threads guarantee it will work with virtually any 1.25\" accessory that has a filter thread.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Profile:\u003c\/strong\u003e With a total height of only 20mm, the reducer adds minimal length to your imaging setup, helping to manage focuser back-travel requirements.\n\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\"\u003eHow do I use the Svbony 0.5x Focal Reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou attach the Svbony 0.5x Focal Reducer by screwing it directly into the \u003cstrong\u003eM28.5x0.6 filter threads\u003c\/strong\u003e on the barrel of any standard 1.25\" eyepiece or a 1.25\" camera nosepiece. It attaches just like a color or moon filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the Svbony 0.5x Focal Reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit is that it \u003cstrong\u003edoubles your field of view\u003c\/strong\u003e, allowing you to see large objects like the Andromeda Galaxy (M31) in their entirety. For astrophotography, it also halves your effective focal ratio (e.g., f\/10 becomes f\/5), which reduces required exposure times by a factor of four.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 0.5x reducer work with my 8-inch f\/10 Schmidt-Cassegrain telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Svbony 0.5x reducer is an excellent match for an SCT. It will convert your telescope to an f\/5 system, providing a much wider, brighter field of view that is ideal for visually observing large star clusters like the Pleiades (M45) and for imaging wide nebulae.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony 0.5x reducer for both visual observing and astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Visually, it delivers wider and brighter views, making it easier to locate and enjoy large celestial objects. For astrophotography with small-chip planetary or guide cameras, it allows you to capture much larger targets and significantly reduces required exposure times.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Svbony 0.5x reducer affect image quality?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the reducer features optical glass with anti-reflection coatings, all simple focal reducers can introduce some field curvature or coma at the edges of the field, especially in fast telescopes. This is a normal optical trade-off for the benefit of a much wider field of view and is typically minimal, especially near the center of the image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Svbony 0.5x reducer require me to change my focusing position?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, adding any optical element like a reducer will change the focus point of your telescope. You will need to rack your focuser \u003cstrong\u003einward\u003c\/strong\u003e to achieve a sharp image. Before purchasing, ensure your telescope has sufficient in-travel on its focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Reduction\u003c\/td\u003e\n\u003ctd\u003e0.5x\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\u003eThread Interface\u003c\/td\u003e\n\u003ctd\u003eM28.5x0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSleeve Material\u003c\/td\u003e\n\u003ctd\u003eFull metal aluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Material\u003c\/td\u003e\n\u003ctd\u003ePure optical lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Height\u003c\/td\u003e\n\u003ctd\u003e20mm\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\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":52861235003677,"sku":"SV-F9154A","price":21.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-0-5x-Focal-Reducer-1-25-for-Telescope-Photography-Observing-1_4e247e5b-f619-4837-86a3-301b42e20ecb.jpg?v=1788660066"},{"product_id":"svbony-sv199-adc-atmospheric-dispersion-corrector-125in","title":"SVBONY SV199 ADC Atmospheric Dispersion Corrector - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCorrects atmospheric dispersion for planetary viewing\u003c\/li\u003e\n\u003cli\u003e2° to 2.5° prism deviation angle\u003c\/li\u003e\n\u003cli\u003e24mm clear optical aperture\u003c\/li\u003e\n\u003cli\u003eFits standard 1.25\" focusers and accessories\u003c\/li\u003e\n\u003cli\u003eIntegrated T2 male and female threads for imaging\u003c\/li\u003e\n\u003cli\u003eOnboard bubble level for precise horizontal alignment\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 SV199 1.25\" ADC Atmospheric Dispersion Corrector\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV199 1.25\" ADC (Atmospheric Dispersion Corrector) uses a pair of counter-rotating wedge prisms made from Bk7 glass to introduce a corrective deviation angle of 2° to 2.5°, cancelling color fringing on planets low on the horizon. Its 24mm effective aperture ensures no vignetting with standard 1.25\" eyepieces, while the CNC-machined body measures 30x48mm and adds a solid 405g to your imaging 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\u003eCorrecting Atmospheric Dispersion with a 2.5° Deviation Angle\u003c\/h3\u003e\n\u003cp\u003eWhen a planet is low in the sky, Earth's atmosphere acts like a weak prism, splitting its light and creating a red\/blue fringe that blurs fine detail. The SV199 ADC's two wedge prisms introduce an opposing dispersion, adjustable from 2° to 2.5°, to recombine the colors into a single, sharp image. The Bk7 optical elements feature double-sided anti-reflection coatings optimized for the 300-700nm visual spectrum, preserving contrast and brightness.\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\u003e1λ Surface Accuracy and Onboard Bubble Level for Precision Alignment\u003c\/h3\u003e\n\u003cp\u003eTo function correctly, an ADC must be precisely leveled with the horizon. The SV199 integrates a bubble level directly into the main body, removing the guesswork and ensuring accurate alignment every time. The optical prisms are polished to a surface accuracy of 1λ, and the entire assembly is housed in a CNC-machined body for rigidity and precise control via the smooth plastic adjustment levers.\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\u003eFlexible Integration via 1.25\" Barrel and T2 Threads\u003c\/h3\u003e\n\u003cp\u003eThe SV199 is designed for universal compatibility in planetary setups. The telescope side features a standard 1.25\" barrel with a T2 male thread, allowing it to slide into any 1.25\" focuser or be securely threaded to your diagonal or barlow. The eyepiece end includes a 1.25\" holder with side-locking screws for visual use and a T2 female thread for direct, secure attachment to most planetary 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\"\u003eWhat does the Svbony SV199 ADC actually do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Svbony SV199 corrects for atmospheric dispersion, an effect where Earth's atmosphere splits a celestial object's light into a spectrum, causing color fringing (typically red on one edge, blue on the other). This is most noticeable when planets are low on the horizon. The ADC's prisms recombine these colors, resulting in a sharper, more detailed, and color-accurate image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Svbony SV199 improve my view of Jupiter when it's low in the sky?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWithout an ADC, Jupiter will show a soft red fringe on its upper limb and a blue fringe on its lower limb when near the horizon, blurring features like the Great Red Spot and fine cloud bands. By inserting and adjusting the SV199, you can cancel this fringing. The result is a much tighter image with higher contrast, allowing you to resolve details that were previously smeared by atmospheric effects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony SV199 ADC for imaging Saturn with my planetary camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the SV199 is ideal for planetary imaging. It features standard \u003cstrong\u003eT2 threads\u003c\/strong\u003e (female on the camera side) for a secure, threaded connection directly to your camera's nosepiece, eliminating any potential for tilt. This ensures the sharpest possible data capture, which is critical for lucky imaging techniques used on planets like Saturn to resolve the Cassini Division or subtle storm details.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Svbony SV199 difficult to use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt's straightforward for both beginners and experienced observers. First, use the integrated \u003cstrong\u003ebubble level\u003c\/strong\u003e to ensure the adjustment levers are perfectly horizontal. Then, while looking through the eyepiece or at your camera feed, move the two levers together in opposite directions until the color fringing on the planet disappears. That's it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Svbony SV199 work with my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV199 is designed to fit any telescope with a standard \u003cstrong\u003e1.25\" focuser\u003c\/strong\u003e or diagonal. It also has T2 threads for more secure connections. Its primary limitation is back focus, as it adds some length to the optical path, which is rarely an issue for Schmidt-Cassegrain or Maksutov-Cassegrain telescopes but should be checked on some refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much does the Svbony SV199 weigh?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV199 ADC weighs \u003cstrong\u003e405g\u003c\/strong\u003e. While robust, this adds significant weight to the end of your optical train. You should ensure your focuser can handle this load without slipping, especially when combined with a heavy eyepiece or planetary camera.\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\u003eSV199\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAtmospheric Dispersion Corrector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Aperture\u003c\/td\u003e\n\u003ctd\u003e24mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Type\u003c\/td\u003e\n\u003ctd\u003ePair of Wedge Prisms\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\u003eDeviation Angle\u003c\/td\u003e\n\u003ctd\u003e2° - 2.5°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Accuracy\u003c\/td\u003e\n\u003ctd\u003e1λ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eDouble-sided Anti-Reflection (300-700nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Barrel \/ T2 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece\/Camera Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Holder \/ T2 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocking Method\u003c\/td\u003e\n\u003ctd\u003eSide Locking Screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeveling\u003c\/td\u003e\n\u003ctd\u003eIntegrated Bubble Level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eCNC Machined Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e30mm x 48mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e405g\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\"\u003eSV199 1.25\" ADC Body\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 Cover\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\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSvbony 1-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861236740381,"sku":"SV-W9157B","price":111.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV199-1-25-ADC-Atmospheric-Dispersion-Corrector-for-Planets-1_cea229c1-a97c-469f-88d9-43e81ec7d8ab.jpg?v=1788660240"},{"product_id":"svbony-sv193-0-8x-focal-reducer-field-flattener-2in","title":"SVBONY SV193 0.8X Focal Reducer \/ Field Flattener - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e0.8x Focal Reduction Factor\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for the SVBONY SV503 102ED Telescope\u003c\/li\u003e\n\u003cli\u003eCorrects for field curvature for flat, sharp stars\u003c\/li\u003e\n\u003cli\u003e3-Element, 2-Group Optical Design\u003c\/li\u003e\n\u003cli\u003eStandard 2-inch barrel and M48x0.75 camera threads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSVBONY SV193 2\" 0.8X Reducer Field Flattener for SV503 102ED Scope\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV193 2\" 0.8X Reducer Field Flattener is engineered to convert the SV503 102ED refractor into a faster, wider-field imaging instrument. Its 3-element optical system simultaneously shortens exposure times and corrects for the field curvature inherent in refractor optics, producing sharp stars across the entire frame. The unit connects to your camera via standard M48*0.75 threads and, at a mere 177g, adds minimal weight to your 2-inch imaging 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\u003eA Faster, Wider Field at 0.8x for the SV503 102ED\u003c\/h3\u003e\n\u003cp\u003eBy reducing the telescope's native focal length by a factor of 0.8x, the SV193 significantly expands your field of view. This allows you to frame larger deep-sky targets, such as the Andromeda Galaxy (M31) or the North America Nebula (NGC 7000), that might otherwise be too large for your camera's sensor. This focal reduction also creates a faster optical system, allowing you to capture the same amount of signal in less time and reduce demands on your mount's tracking accuracy.\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-Element Design for Edge-to-Edge Sharpness\u003c\/h3\u003e\n\u003cp\u003eThe SV193 is more than just a reducer; it is a dedicated field flattener designed to eliminate star distortion at the edges of the frame. The 3-element, 2-group optical design is fully multi-coated to maximize light transmission and contrast. Blackened lens edges further suppress internal reflections, ensuring a dark sky background and preventing stray light from degrading your final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 Threads and 2-inch Barrel for Imaging Trains\u003c\/h3\u003e\n\u003cp\u003eIntegration with your existing equipment is seamless. The SV193 features a standard 2-inch barrel that slides directly into the SV503 102ED's focuser. On the camera side, it provides M48*0.75 male threads, the standard for connecting to DSLRs, mirrorless cameras with the appropriate T-ring, and dedicated astronomy cameras. The lightweight 177g construction ensures that it won't cause issues with focuser sag or mount balance.\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\"\u003eIs the SVBONY SV193 compatible with telescopes other than the SV503 102ED?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the SVBONY SV193 is optically matched specifically for the SVBONY SV503 102ED refractor. While it might physically thread into other systems, the optical correction for field curvature is calculated for the specific focal length and optical properties of the SV503 102ED. Using it with other telescopes will likely result in poor edge-of-field correction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the required back focus for the SVBONY SV193 reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSVBONY does not officially publish a required back focus distance for the SV193. Typically, reducers of this type require 55mm of back focus from the reducer's flange to the camera sensor. You may need to experiment with M48 extension rings to achieve perfect corner-to-corner sharpness with your specific camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the SV193 reducer help me image the Orion Nebula (M42) with the SV503 102ED?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 0.8x focal reduction will allow you to capture the entire Orion Nebula complex, including the Running Man Nebula (NGC 1977) and the surrounding nebulosity, in a single frame with most APS-C or larger sensors. The faster focal ratio also means you can gather more signal with shorter individual exposures, which is ideal for resolving the fine details within the bright Trapezium region without overexposing it.\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 SV193 reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV193 itself does not have dedicated filter threads on its telescope-facing side. To use 2-inch filters, you would typically place them in a filter drawer or filter wheel between the reducer and your camera, or thread them onto the 2-inch nosepiece of your camera if your imaging train configuration allows.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SV193 reducer help me capture the Pleiades (M45) with an APS-C sensor on my SV503 102ED?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The Pleiades star cluster is a large target that can be difficult to frame with the native focal length of the SV503 102ED and an APS-C sensor. The SV193's 0.8x reduction provides a wider field of view that is perfectly suited for capturing the entire cluster, including the faint, wispy nebulosity surrounding the main stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"3-element, 2-group\" optical design of the SV193 mean for my images?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis specification describes how the lenses are constructed inside the reducer. It uses \u003cstrong\u003ethree individual lens elements\u003c\/strong\u003e arranged into \u003cstrong\u003etwo cemented groups\u003c\/strong\u003e. This multi-element design is necessary to both reduce the focal length and flatten the image field simultaneously, correcting for optical aberrations and ensuring stars are sharp points from the center to the corners of your image.\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\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48*0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e3 Elements in 2 Groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully multi-coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlackened Lens Edges\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e177g \/ 6.24oz \/ 0.39lb\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\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY Warranty Policy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861261021469,"sku":"SV-W9152D","price":117.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV193-2-0-8X-Reducer-Field-Flattener-for-SV503-102ED-Scope-1_921c9fdf-35c1-4aba-a629-bd0f413d47ca.jpg?v=1788883487"},{"product_id":"svbony-sv209-1-0x-field-flattener-for-sv550-80f6","title":"SVBONY SV209 1.0X Field Flattener for SV550 80F6","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e1.0x focal correction factor\u003c\/li\u003e\n\u003cli\u003eDesigned for the Svbony SV550 80F6 telescope\u003c\/li\u003e\n\u003cli\u003e45mm fully illuminated image circle\u003c\/li\u003e\n\u003cli\u003eM63x1 telescope-side connection\u003c\/li\u003e\n\u003cli\u003eProvides 55mm, 91.5mm, and 103mm back focus distances\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 SV209 1.0x Flattener for SV550 80F6\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV209 1.0x Flattener is engineered specifically for the SV550 80F6 refractor, using a 2-element optical design to produce a 45mm fully illuminated field for full-frame sensors. It connects directly to the telescope's drawtube via an M63x1 male thread and provides multiple back focus options, including the standard 55mm distance via an M48x0.75 camera connection. This flattener maintains your telescope's native focal length with its 1.0x factor, ensuring pinpoint stars across the entire image frame without altering the 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\u003e1.0x Flat-Field Correction for the SV550 80F6\u003c\/h3\u003e\n\u003cp\u003eRefractor telescopes naturally exhibit field curvature, causing stars at the edge of an image to appear elongated or out of focus. The SV209 is optically matched to the SV550 80F6 to counteract this distortion. Its 2-element, fully multi-coated (FMC) lens system corrects for off-axis aberrations without changing the telescope's focal length, preserving the original 1.0x magnification and f-ratio.\u003c\/p\u003e\n\u003cp\u003eThis dedicated design ensures that the correction is optimized for the SV550's optical system, delivering sharp, round stars from the center to the corners of your sensor. This is a critical upgrade for astrophotography, transforming the SV550 into a flat-field imaging instrument capable of capturing clean, wide-field vistas of nebulae and star 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\u003eM63x1 Connection and Multiple Back Focus Options\u003c\/h3\u003e\n\u003cp\u003eThe SV209 establishes a secure, threaded connection by attaching directly to the SV550's M63x1 drawtube threads, eliminating any potential for flexure that can occur with 2-inch compression fittings. The camera side offers multiple documented back focus distances—103mm from the female M63x1 thread, and either 55mm or 91.5mm from the male M48x0.75 thread—to accommodate various imaging train components like off-axis guiders and filter wheels.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 55mm Back Focus:\u003c\/strong\u003e The M48x0.75 thread is configured to achieve the 55mm back focus standard used by most DSLRs, mirrorless cameras with T-rings, and dedicated astronomy cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Filter Threads:\u003c\/strong\u003e The design incorporates threads for standard 2-inch (M48) astronomy filters, allowing you to easily add light pollution or narrowband filters into your optical path without needing a separate filter drawer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Installation:\u003c\/strong\u003e The flattener threads on after removing the SV550's stock 2-inch eyepiece adapter, creating a rigid imaging train from the focuser to the camera sensor.\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\u003e45mm Image Circle for Full-Frame Sensors\u003c\/h3\u003e\n\u003cp\u003eA key capability of the SV209 is its ability to produce a fully illuminated and corrected image circle of 45mm. This generous field is large enough to cover modern full-frame (36x24mm) camera sensors without vignetting, a significant advantage for capturing large targets like the Andromeda Galaxy (M31) or the North America Nebula (NGC 7000).\u003c\/p\u003e\n\u003cp\u003eWhile many flatteners are designed only for smaller APS-C sensors, the SV209's 45mm corrected field unlocks the full potential of the SV550 80F6 telescope for use with larger sensors. This ensures even illumination and sharp stars across the entire frame, maximizing the data captured in every exposure.\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 SV209 Flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Svbony SV209 is an optical corrector designed specifically for the \u003cstrong\u003eSvbony SV550 80F6\u003c\/strong\u003e telescope. Its function is to eliminate the natural field curvature of the telescope's optics, ensuring that stars are sharp and pinpoint across the entire photograph, from the center to the very corners. It does this without changing the telescope's focal length (1.0x factor).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SV209 compatible with telescopes other than the SV550 80F6?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the SV209 is designed as a dedicated flattener for the \u003cstrong\u003eSvbony SV550 80F6\u003c\/strong\u003e. Field flatteners are calculated for a specific optical design, and using this on another telescope, even one with similar specs, will likely result in poor correction. For optimal results, it should only be used with the SV550.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat imaging setups are the 55mm, 91.5mm, and 103mm back focus options for on the SV209?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe different back focus distances allow for flexibility in your imaging train:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e55mm (from M48 thread):\u003c\/strong\u003e This is the industry standard for DSLRs\/mirrorless cameras with a T-ring, as well as many dedicated astronomy cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e91.5mm \/ 103mm:\u003c\/strong\u003e These longer distances provide the necessary space to insert additional accessories between the flattener and the camera, such as an off-axis guider (OAG), a filter wheel, or other adapters, while still achieving the correct total spacing for a flat field.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch filters with the Svbony SV209?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The SV209 includes standard M48x0.75 threads (the same as 2-inch filters) on the camera-side adapter, allowing you to directly attach 2-inch filters for light pollution reduction or narrowband imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SV209 Flattener illuminate my full-frame camera when imaging the Andromeda Galaxy (M31) with the SV550?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The SV209 produces a \u003cstrong\u003e45mm fully illuminated and corrected image circle\u003c\/strong\u003e. This is more than large enough to cover a standard full-frame sensor (which has a ~43mm diagonal), ensuring no vignetting and sharp stars across the entire frame when capturing large targets like the Andromeda Galaxy (M31).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the Svbony SV209 on my SV550 80F6 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation requires a direct threaded connection. First, you must unscrew the standard 2-inch eyepiece holder from the focuser drawtube of your SV550. This will expose the male M63x1 threads on the drawtube. The SV209 flattener then threads directly onto this M63x1 connection, providing a secure, flex-free fit.\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\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eField Flattener for SV550 80F6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrection Factor\u003c\/td\u003e\n\u003ctd\u003e1.0x (no focal length change)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e2 elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIlluminated Field\u003c\/td\u003e\n\u003ctd\u003e45mm (Supports full-frame sensors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM63x1 male thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection 1 (Thread)\u003c\/td\u003e\n\u003ctd\u003eM63x1 female thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection 1 (Back Focus)\u003c\/td\u003e\n\u003ctd\u003e103mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection 2 (Thread)\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 male thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection 2 (Back Focus)\u003c\/td\u003e\n\u003ctd\u003e55mm or 91.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional Threads\u003c\/td\u003e\n\u003ctd\u003eM63x1 female thread for photo adaptions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Diameter\u003c\/td\u003e\n\u003ctd\u003e67mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e87.5mm (without male thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861262528797,"sku":"SV-W9161A","price":168.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV209-1-0x-Flattener-for-SV550-80F6-M63x1-Connection-Black-1_aeaa0c9a-d3bc-4129-bcdc-146c73679a89.jpg?v=1788883554"}],"url":"https:\/\/davidastro.com\/collections\/svbony-field-flatteners-reducers-and-coma-correctors.oembed","provider":"David Astro","version":"1.0","type":"link"}