{"title":"SVBONY Adapters","description":"\u003cp\u003eSVBONY adapters connect cameras, eyepieces and accessories to telescopes and spotting scopes across the common thread standards. The range includes T-rings for Canon EOS and Nikon F, a T2 to Sony NEX adapter, 2\" and 1.25\" nosepieces with M42 threads, M48 to M42 step-downs, SCT to 2\" and SCT prime focus camera adapters, and a 1.25\" to C-mount adapter.\u003c\/p\u003e\u003cp\u003eCheck the thread and back focus your imaging train needs before choosing a part.\u003c\/p\u003e","products":[{"product_id":"svbony-sv112-eyepiece-projection-kit-125in","title":"SVBONY SV112 Eyepiece Projection Kit - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts SLR\/DSLR cameras to a 1.25\" telescope focuser\u003c\/li\u003e\n\u003cli\u003eSupports both prime focus and eyepiece projection astrophotography\u003c\/li\u003e\n\u003cli\u003eVariable projection length up to a maximum of 42mm\u003c\/li\u003e\n\u003cli\u003eAccepts 1.25\" eyepieces with an outer diameter up to 42mm\u003c\/li\u003e\n\u003cli\u003eFeatures standard M42*0.75 T-threads for camera connection\u003c\/li\u003e\n\u003cli\u003eBarrel is threaded for standard 1.25\" (M28.5*0.6) 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 SV112 1.25inch Eyepiece Projection Kit for Telescope Astrophotography\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV112 1.25inch Eyepiece Projection Kit connects your DSLR camera to any telescope with a 1.25\" focuser, offering a variable projection range of up to 42mm for precise image framing. Constructed from black aluminum alloy, the 350g adapter features M42*0.75 T-threads for a secure camera connection and M28.5*0.6 threads to accommodate standard 1.25\" astronomy 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\u003e42mm Variable Projection: Dial in Your Magnification\u003c\/h3\u003e\n\u003cp\u003eThe core feature of the SV112 is its ability to vary the distance between your camera sensor and an inserted eyepiece, with a maximum extension of 42mm. Sliding the barrel allows you to fine-tune the final magnification, letting you frame planetary targets or small nebulae perfectly without changing eyepieces. A laser-engraved scale provides repeatable settings, while the machined grip ring ensures you can make adjustments securely, even with gloves on.\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\u003ePrime Focus \u0026amp; Eyepiece Projection for 1.25\" Focusers\u003c\/h3\u003e\n\u003cp\u003eThis adapter enables two fundamental types of astrophotography. For prime focus imaging, you connect your camera directly to the telescope without an eyepiece, turning your telescope into a massive telephoto lens ideal for capturing wide-field targets like the Orion Nebula (M42) or the Andromeda Galaxy (M31). For high-magnification views of the Moon and planets, insert a 1.25\" eyepiece (up to 42mm in outer diameter) into the adapter for eyepiece projection, dramatically increasing your effective focal length.\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 Build: 350g of Aluminum with M28.5 Filter Threads\u003c\/h3\u003e\n\u003cp\u003eWeighing a solid 350g, the SV112 is machined from aluminum alloy for durability and rigidity, preventing flexure in your imaging train. The nosepiece that inserts into your telescope's focuser is threaded to accept standard 1.25\" (M28.5*0.6) filters. This allows you to use light pollution, color, or planetary filters to enhance contrast directly at the front of the imaging assembly.\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 difference between prime focus and eyepiece projection with the SVBONY SV112?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003ePrime focus\u003c\/strong\u003e is when you attach your camera to the telescope without an eyepiece, using the telescope's native focal length. This is best for large, faint objects like galaxies and nebulae. \u003cstrong\u003eEyepiece projection\u003c\/strong\u003e involves placing an eyepiece inside the SV112 adapter between the telescope and camera to significantly increase magnification, which is ideal for capturing fine details on the Moon and planets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of eyepieces can I use inside the SVBONY SV112 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV112 is designed to hold standard 1.25\" eyepieces. The internal barrel can accommodate any eyepiece with a maximum outside body diameter of \u003cstrong\u003e42mm\u003c\/strong\u003e. This covers most standard Plössl, Kellner, and other similarly sized 1.25\" eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach my Canon DSLR to the SVBONY SV112 kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a camera-specific T-Ring for your Canon EOS mount (sold separately). The T-Ring screws onto the \u003cstrong\u003eM42*0.75 T-threads\u003c\/strong\u003e on the SVBONY SV112 adapter. The other side of the T-Ring then bayonets onto your Canon camera body just like a lens.\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 SV112 projection kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 1.25\" nosepiece of the adapter features standard \u003cstrong\u003eM28.5*0.6 filter threads\u003c\/strong\u003e. You can screw any standard 1.25\" filter, such as a light pollution filter or a planetary color filter, directly onto the end of the adapter before inserting it into your telescope's focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I use the SVBONY SV112 to image Jupiter with an 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a high-magnification target like Jupiter, you would use the eyepiece projection method. Insert a medium-to-high power 1.25\" eyepiece into the SV112, attach your camera via a T-ring, and insert the entire assembly into the SCT's focuser. You can then slide the adapter's barrel in and out along its \u003cstrong\u003e42mm travel range\u003c\/strong\u003e to adjust the final image scale until Jupiter's cloud bands and moons are framed perfectly on your camera sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV112 suitable for capturing the entire Andromeda Galaxy (M31) with a wide-field refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, for this you would use the prime focus method. Do not insert an eyepiece into the SV112. Simply connect your camera to the adapter with a T-ring and insert it into your refractor. This uses your telescope's native focal length, providing the widest possible field of view to capture large deep-sky objects like the Andromeda Galaxy (M31).\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\u003eMax Eyepiece Diameter\u003c\/td\u003e\n\u003ctd\u003e42mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection Extension Range\u003c\/td\u003e\n\u003ctd\u003e42mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera-Side Thread (T-Ring)\u003c\/td\u003e\n\u003ctd\u003eM42*0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Thread (Focuser-Side)\u003c\/td\u003e\n\u003ctd\u003eM28.5*0.6\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\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e350g \/ 12.35oz \/ 0.771lb\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":52861230088477,"sku":"SV-F9183A","price":45.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV112-1-25inch-Eyepiece-Projection-Kit-for-Telescope-Astrophotography-1_a390a486-9b1a-4b67-93d3-65cf06d1207d.jpg?v=1788659698"},{"product_id":"svbony-t-adapter-mount-with-m42-threads-125in","title":"SVBONY T-Adapter Mount with M42 Threads - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M42 T-thread cameras to 1.25\" focusers\u003c\/li\u003e\n\u003cli\u003eStandard M42 x 0.75 male threads\u003c\/li\u003e\n\u003cli\u003eFits any telescope with a 1.25\" eyepiece holder\u003c\/li\u003e\n\u003cli\u003eLightweight design for portable setups\u003c\/li\u003e\n\u003cli\u003eEnables prime-focus astrophotography\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\u003e1.25\" T-Adapter Mount with M42 Threads\u003c\/h2\u003e\n      \u003cp\u003eThis 1.25\" T-Adapter provides the essential link between your telescope and a camera equipped with standard M42 T-threads. It allows you to bypass the camera's lens and use your telescope as a prime photographic lens, seating your camera sensor directly at the telescope's focal plane for maximum image brightness and detail.\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\u003eThe Essential M42 T-Thread to 1.25\" Connection\u003c\/h3\u003e\n      \u003cp\u003eThis adapter solves the fundamental problem of physically connecting your imaging equipment to your telescope. One end features standard male M42 x 0.75 threads (the universal \"T-thread\") for a secure connection to your DSLR's T-ring or a dedicated astronomy camera. The other end is a 1.25\" barrel that slides into any standard telescope focuser or diagonal, just like an eyepiece.\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 Prime-Focus Imaging with a 1.25\" Barrel\u003c\/h3\u003e\n      \u003cp\u003eBy creating a rigid, threaded connection, the adapter ensures your camera remains perfectly aligned with the telescope's optical axis. This prevents tilt, which can ruin stars in the corners of your frame, and maintains a consistent focal plane for sharp images. Its durable, lightweight construction adds minimal weight to your setup, making it ideal for portable rigs and field use without compromising 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 main purpose of this 1.25\" T-Adapter with M42 threads?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter's primary function is to connect a camera with \u003cstrong\u003eM42 T-threads\u003c\/strong\u003e to a telescope's \u003cstrong\u003e1.25\" focuser or diagonal\u003c\/strong\u003e. This allows you to perform prime-focus astrophotography, where the telescope itself acts as the camera's lens.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I use this M42 adapter to connect my Canon or Nikon DSLR to a telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eTo connect a DSLR, you first need a brand-specific \u003cstrong\u003eT-Ring\u003c\/strong\u003e (sold separately) that fits your camera's lens mount (e.g., Canon EOS or Nikon F-mount). The T-Ring has female M42 threads that screw directly onto this adapter. The adapter's 1.25\" barrel then slides into your telescope's focuser.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 1.25\" T-Adapter work with my 8\" Schmidt-Cassegrain telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. If your 8\" SCT has a standard 1.25\" visual back or a 1.25\" diagonal, this adapter will fit perfectly. It is compatible with virtually any telescope that accepts 1.25\" eyepieces, including refractors, reflectors, and catadioptric systems.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this M42 T-Adapter suitable for imaging planets like Jupiter with a dedicated astronomy camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. This is a common and effective way to connect a planetary camera to your telescope. Most dedicated planetary cameras have either M42 threads or a 1.25\" nosepiece. This adapter provides the secure, threaded M42 connection needed for a stable imaging train.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of cameras are compatible with this 1.25\" adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is compatible with two main types of cameras:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDSLR or Mirrorless Cameras:\u003c\/strong\u003e Requires a camera-specific T-Ring (not included).\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDedicated Astronomy Cameras:\u003c\/strong\u003e Works with cameras that have female M42 x 0.75 T-threads for connection.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 1.25\" T-Adapter cause vignetting with my camera sensor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eVignetting (darkening of the corners) is determined by the size of your camera's sensor relative to the adapter's barrel size. The \u003cstrong\u003e1.25\" barrel\u003c\/strong\u003e is the limiting factor and is generally suitable for cameras with smaller sensors, such as those found in planetary cameras or entry-level deep-sky cameras. It may cause significant vignetting on cameras with larger APS-C or full-frame sensors.\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      \n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \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":52861238575389,"sku":"SV-F9103A","price":5.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-1-25-T-Adapter-Mount-with-M42-Threads-1_3f8f605b-a8cc-4c62-8216-2dc7c81f8782.jpg?v=1788660462"},{"product_id":"svbony-ca1-astronomical-telescope-to-slr-camera-adapter-tube","title":"SVBONY CA1 Astronomical Telescope to SLR Camera Adapter Tube","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAchieve Prime Focus with SLR\/DSLR Cameras\u003c\/li\u003e\n\u003cli\u003eProvides Necessary Focuser Extension\u003c\/li\u003e\n\u003cli\u003eAll-Metal Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eLightweight and Durable Design\u003c\/li\u003e\n\u003cli\u003eWide Compatibility with Standard Telescope Focusers\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 CA1 All-Metal Telescope to SLR Camera Adapter Photography Tube\u003c\/h2\u003e\n      \u003cp\u003eThe SVBONY CA1 All-Metal Telescope to SLR Camera Adapter is an essential accessory for prime-focus astrophotography, solving the common problem of insufficient focuser travel. By adding physical length to the optical path, this tube allows you to reach a sharp, clear focus with your SLR or DSLR camera when it cannot be achieved otherwise. Its durable, all-metal construction ensures a rigid and secure connection, preventing flexure that can ruin long exposures.\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\u003eReaching Focus: The Role of the CA1 Extension Tube\u003c\/h3\u003e\n      \u003cp\u003eMany telescopes, particularly Newtonian reflectors, are designed with a focal plane close to the tube, optimized for visual use with eyepieces. When you attach an SLR camera body, the sensor is often too far inside the focuser's travel range to achieve focus. The CA1 Extension Tube pushes the camera further back from the telescope, extending the light path just enough to bring celestial objects into sharp relief on your sensor.\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\u003eAll-Metal Build: Securely Connecting Your Camera\u003c\/h3\u003e\n      \u003cp\u003eIn astrophotography, any sag or flexure in the imaging train can lead to elongated or distorted stars. The CA1 adapter is machined from lightweight aluminum to provide a solid, unyielding connection between your telescope's focuser and your camera's T-ring. This robust construction supports the weight of a camera body without introducing instability, ensuring your images remain as sharp as your optics allow.\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\"\u003eWhy do I need the SVBONY CA1 adapter to connect my SLR camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou need the SVBONY CA1 adapter when your telescope's focuser doesn't have enough \"out-travel\" to bring your SLR camera sensor to the focal plane. This tube adds the necessary physical distance to achieve a sharp, prime-focus image, a common requirement for many reflector and refractor telescopes.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY CA1 work with my Newtonian reflector for prime focus astrophotography?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is one of its primary applications. Newtonian reflectors are frequently designed for visual use and often require an extension tube like the \u003cstrong\u003eSVBONY CA1\u003c\/strong\u003e to reach focus with a DSLR or SLR camera attached for prime-focus imaging of objects like the Orion Nebula (M42).\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY CA1 Extension Tube for visual observing with an eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile designed for cameras, the CA1 can also be used visually if you have an accessory, like a Barlow lens or certain eyepiece designs, that requires additional out-travel to come to focus. It provides a simple way to extend your focuser's range for specific visual setups.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the SVBONY CA1 adapter made of?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe SVBONY CA1 adapter is constructed entirely from \u003cstrong\u003edurable, lightweight aluminum\u003c\/strong\u003e. This all-metal design ensures a rigid and secure connection in your imaging train, preventing flexure and maintaining optical alignment.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SVBONY CA1 help when imaging planets like Jupiter with my SCT?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhen using a Barlow lens to increase magnification for planetary imaging on a Schmidt-Cassegrain Telescope (SCT), the focus point can shift outwards. The SVBONY CA1 provides the extra extension needed to ensure your camera can reach this new focal point, allowing you to capture sharp, high-magnification images of Jupiter's cloud bands or Saturn's rings.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY CA1 difficult to install in my telescope's focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, installation is very simple. The SVBONY CA1 slides into your telescope's focuser just like an eyepiece and is secured with the focuser's thumbscrews. Your camera's T-adapter then connects to the other end of the tube.\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      \n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \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":52861239361821,"sku":"SV-F9105A","price":16.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-CA1-All-Metal-Telescope-to-SLR-Camera-Adapter-Photography-Tube-1_c12bb740-25f3-4c2c-ac41-35d6736635b6.jpg?v=1788660469"},{"product_id":"svbony-sv125-black-2in-to-t2-camera-adapter-for-slr-cameras","title":"SVBONY SV125 Black 2\" to T2 Camera Adapter for SLR Cameras","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts 2\" (50.8mm) focusers to M42*0.75 T-threads\u003c\/li\u003e\n\u003cli\u003eConnects SLR\/DSLR cameras via a standard T-Ring\u003c\/li\u003e\n\u003cli\u003eFeatures female M48*0.75 threads for 2\" filters\u003c\/li\u003e\n\u003cli\u003eDurable and lightweight aluminum construction at only 56g\u003c\/li\u003e\n\u003cli\u003e29mm barrel length\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 SV125 Black 2'' to T2 Camera Adapter for SLR Cameras\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV125 Black 2'' to T2 Camera Adapter is the essential link for prime-focus astrophotography, converting any 2-inch (50.8mm) telescope focuser into a secure M42*0.75 threaded connection for your SLR or DSLR camera. This single-piece aluminum adapter features integrated M48*0.75 female threads for mounting 2-inch filters and adds only 56g to your imaging train with its 29mm barrel length.\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\u003eM42*0.75 T-Threads: Connect Your SLR to Any 2\" Focuser\u003c\/h3\u003e\n\u003cp\u003eThis adapter's primary function is to provide a universal T-thread (M42*0.75) connection, the standard for attaching camera bodies to telescopes. Simply pair the SV125 with a T-Ring specific to your camera brand (Nikon, Canon, Sony, etc.), and you can slide your camera directly into any 2-inch focuser, diagonal, or Barlow lens. The machined aluminum body ensures a rigid, flex-free connection critical for sharp, round stars during an exposure.\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\u003eIntegrated M48*0.75 Threads for 2\" Filters\u003c\/h3\u003e\n\u003cp\u003eThe base of the SV125's 2-inch barrel is threaded to accept standard M48*0.75 filters. This allows you to place a light pollution, nebula, or monochrome filter directly in the optical path before the camera sensor, without needing a separate filter wheel or drawer. This placement is ideal for maximizing signal and contrast, especially when imaging from light-polluted skies.\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 else do I need to connect my camera with the Svbony SV125 adapter?\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 matches your specific camera's lens mount (e.g., Canon EF, Nikon F, Sony E). The T-Ring attaches to your camera body like a lens, and its female T-threads then screw securely onto the SV125's male M42*0.75 threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach a filter to the SV125 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 2-inch barrel that inserts into the telescope has internal female threads (M48*0.75). You can simply screw any standard 2-inch astronomy filter directly into these threads before inserting the adapter into the focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Svbony SV125 work with my off-axis guider (OAG)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCompatibility depends on your total back focus. The SV125 itself has a minimal optical path length, but it is a spacer. You must ensure that your telescope can reach focus with the combined thickness of your T-ring, OAG, and the SV125 adapter in the imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony SV125 to image the Orion Nebula (M42) with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. An 8\" Schmidt-Cassegrain Telescope with a 2-inch visual back is a perfect match for the SV125. Paired with a DSLR, it will allow you to do prime-focus imaging of bright deep-sky objects like the Orion Nebula (M42). For best results, consider threading a light pollution filter onto the adapter's M48 threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SV125 cause vignetting with my full-frame camera on a fast refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 2-inch barrel diameter is designed to illuminate large sensors and minimize vignetting. However, on very fast optical systems (f\/5 or lower), some light fall-off at the corners of a full-frame sensor may still occur. This is typically corrected by shooting flat frames during post-processing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the M42 and M48 threads on the Svbony SV125?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV125 has two different threads for two distinct purposes:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMale M42*0.75 Thread:\u003c\/strong\u003e This is the \"T-thread\" or \"T2\" side. It is the universal standard for attaching camera-specific T-Rings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFemale M48*0.75 Thread:\u003c\/strong\u003e This is the standard 2-inch filter thread, located inside the barrel that goes into the telescope.\u003c\/li\u003e\n\u003c\/ul\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\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMale Thread (Camera Side)\u003c\/td\u003e\n\u003ctd\u003eM42*0.75 (T2-mount)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFemale Thread (Filter Side)\u003c\/td\u003e\n\u003ctd\u003eM48*0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Diameter\u003c\/td\u003e\n\u003ctd\u003e50.8mm \/ 2in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Length\u003c\/td\u003e\n\u003ctd\u003e29mm \/ 1.14in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e56mm \/ 2.20in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e56g \/ 1.98oz\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\"\u003eSvbony SV125 2\" to T2 Camera 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":52861239460125,"sku":"SV-F9196A","price":15.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV125-Black-2-to-T2-Camera-Adapter-for-SLR-Cameras-1_0a9972a4-6758-4491-bdae-b6b772e30123.jpg?v=1788660477"},{"product_id":"svbony-125in-to-c-mount-adapter-for-telescope-astrophotography","title":"SVBONY 1.25\" to C-Mount Adapter for Telescope Astrophotography","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSecurely connects 1.25\" focal reducers to C-mount cameras\u003c\/li\u003e\n\u003cli\u003eAll-metal construction prevents flexure and maintains alignment\u003c\/li\u003e\n\u003cli\u003eEliminates loose connections and instability in the optical train\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" barrel interface on one side\u003c\/li\u003e\n\u003cli\u003eStandard C-mount threads on the camera side\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSVBONY 1.25\" to C Mount Adapter for Telescope Astrophotography\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY 1.25\" to C Mount Adapter provides a dedicated, rock-solid mechanical interface for connecting 1.25\" format focal reducers directly to C-mount imaging cameras, eliminating the instability and tilt that can ruin an 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\u003eSecure Your Imaging Train: A Dedicated 1.25\" to C-Mount Connection\u003c\/h3\u003e\n\u003cp\u003eThis adapter solves a common and frustrating problem in astrophotography: a loose or mismatched connection between a focal reducer and a C-mount camera. By providing purpose-built threads for each component, it creates a stable, tight-fitting link that maintains perfect optical alignment. You no longer have to worry about your camera sagging or shifting during an exposure, ensuring your focus remains sharp and your stars stay round.\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 Flex-Free Imaging\u003c\/h3\u003e\n\u003cp\u003eUnlike generic or multi-part solutions that can introduce flexure, the SVBONY C-Mount adapter is built from a single, sturdy piece of metal. This rigid construction is critical for maintaining collimation and alignment throughout your imaging train. The robust build ensures long-term reliability and gives you a dependable connection you can trust, night after night.\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 primary use for the SVBONY 1.25\" to C Mount Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary use is to create a secure, direct connection between a standard 1.25\" focal reducer and an astronomy camera that uses C-mount threads. This is common for many planetary and guide cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat problem does the SVBONY C Mount Adapter solve in an imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt solves the problem of loose, wobbly, or unstable connections that can occur when trying to adapt a focal reducer to a C-mount camera using generic parts. This instability can cause image shift, poor focus, and optical tilt, all of which are resolved by this dedicated adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY 1.25\" to C Mount Adapter made of plastic?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the adapter features a sturdy, all-metal construction. This prevents flexure and ensures a rigid, reliable connection that holds your camera securely in the optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich specific devices does this SVBONY adapter connect?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt connects any accessory with a standard 1.25\" barrel, such as a focal reducer, to any camera that has a female C-mount thread for its primary optical interface. The bottom of the adapter fits the accessory, and the top threads directly onto the camera body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY 1.25\" to C Mount Adapter to attach my video camera to a telescope for planetary imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal application. If you have a telescope like a Celestron 8\" SCT and want to use a C-mount video camera with a 1.25\" focal reducer for imaging Jupiter or Saturn, this adapter provides the exact connection you need for a stable setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY adapter work with my dedicated astronomy guide camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, many popular guide cameras use a C-mount interface. This adapter allows you to securely attach such a camera to a 1.25\" guider port or off-axis guider, ensuring it remains fixed and does not introduce guiding errors due to mechanical slop.\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\u003eAdapter Type\u003c\/td\u003e\n\u003ctd\u003e1.25\" to C-Mount\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\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":52861239525661,"sku":"SV-W2159A","price":12.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-1-25-to-C-Mount-Adapter-for-Telescope-Astrophotography-1_13c33fc7-55e2-42ba-9bfd-4f4226db7dc6.jpg?v=1788660485"},{"product_id":"svbony-sv130-black-m48-to-m42-telescope-adapter","title":"SVBONY SV130 Black M48 to M42 Telescope Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts M48 Female Threads to M42 Male T-Threads\u003c\/li\u003e\n\u003cli\u003eEnables Connection of M42 T-Rings and Accessories to M48 Correctors\u003c\/li\u003e\n\u003cli\u003eKnurled Exterior for a Secure, No-Slip Grip\u003c\/li\u003e\n\u003cli\u003eDurable Black Anodized Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eEngineered for Compatibility with SVBONY Series Telescopes\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 SV130 Black M48 to M42 Knurling Design Telescope Adapter\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV130 Black M48 to M42 Knurling Design Telescope Adapter provides the essential link for integrating different-sized components in your astrophotography train. It cleanly converts the larger M48 (2-inch filter) thread standard, common on field flatteners and coma correctors, to the universal M42 T-thread used by most DSLR T-rings and dedicated astronomy cameras. This genuine SVBONY adapter ensures a secure and stable connection, resolving device compatibility issues for professional-grade 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\u003eBridge Your Imaging Train: Seamless M48 to M42 Conversion\u003c\/h3\u003e\n\u003cp\u003eThis adapter directly addresses a common challenge in astrophotography: connecting a corrector's wide M48 output to a camera's M42 T-ring. By providing a rigid, threaded connection, the SV130 eliminates potential flexure or misalignment that can compromise star shapes at the edge of the field. It allows you to take full advantage of your corrector's illuminated field while using standard camera-side accessories.\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\u003eDesigned for Field Use: Knurled Grip and SVBONY Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe exterior of the SV130 adapter features a machined knurled pattern, offering a secure grip even when wearing gloves on a cold night. This practical design detail makes it easy to tighten or remove the adapter without fumbling in the dark. As a genuine SVBONY component, it is manufactured to ensure perfect compatibility and stable performance with SV series telescopes and accessories.\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 primary use for the Svbony SV130 M48 to M42 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Svbony SV130 is used to connect an accessory with female \u003cstrong\u003eM48 threads\u003c\/strong\u003e (like a field flattener or reducer) to a camera or accessory with male \u003cstrong\u003eM42 T-threads\u003c\/strong\u003e (like a DSLR T-ring or a dedicated astronomy camera). It bridges the two most common threaded standards in astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I need to adapt from M48 to M42 threads on my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMany optical correctors use a wider M48 thread to prevent vignetting and provide a larger, fully-illuminated image circle. However, most cameras and filter wheels use the smaller M42 T-thread standard. This adapter is necessary to securely connect these two different-sized components in your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the knurled design on the SV130 adapter help during an imaging session?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe knurled, textured surface provides a \u003cstrong\u003esecure grip\u003c\/strong\u003e, making it much easier to thread and unthread the adapter, especially in cold or damp conditions or while wearing gloves. This prevents accidental drops and simplifies adjustments in the dark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SV130 adapter compatible with non-Svbony telescopes and accessories?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While designed and tested for optimal fit with SVBONY equipment, the M48 and M42 T-threads are industry standards. The SV130 adapter will work with any correctly threaded components from other manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this SV130 adapter add significant length to my imaging train for my SV503 refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV130 is a low-profile adapter designed to add minimal length to the optical path. While any adapter consumes some back focus, this model is intended to be as thin as possible while maintaining structural rigidity. You must always account for its length when calculating your total back focus distance from a flattener or reducer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SV130 adapter to attach my DSLR with an M42 T-ring to a corrector with an M48 output, like the one for my SVBONY SV550?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a perfect use case for the SV130 adapter. It will thread directly onto the M48 male threads of the SV550's corrector and provide the standard M42 male T-threads needed to connect your DSLR's T-ring, creating a secure, all-threaded connection for imaging.\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 SV130 M48 to M42 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 Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861240312093,"sku":"SV-W9100A","price":11.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV130-Black-M48-to-M42-Knurling-Design-Telescope-Adapter-1_fc35daee-739b-4070-bed8-08b14340b872.jpg?v=1788660492"},{"product_id":"svbony-sv167-camera-adapter-for-sct-prime-focus-photography","title":"SVBONY SV167 Camera Adapter for SCT Prime Focus Photography","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects SCT Telescopes to T-Thread Cameras\u003c\/li\u003e\n\u003cli\u003eMale Thread: Standard SCT\u003c\/li\u003e\n\u003cli\u003eFemale Thread: M42x0.75 T-Thread\u003c\/li\u003e\n\u003cli\u003eExtension Travel: 30mm (1.18 inches)\u003c\/li\u003e\n\u003cli\u003eNet Weight: 50g\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 SV167 Camera Adapter for SCT Prime Focus Photography\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV167 camera adapter provides a direct prime focus connection from your Schmidt-Cassegrain Telescope's rear cell to any camera using standard M42x0.75 T-threads. Constructed from black aluminum, this adapter adds only 50g to your optical train and offers a variable extension of up to 30mm (1.18 inches) to achieve precise focus with different camera sensors. With a total length of 50mm (1.97 inches), it also features a female 2''24TPI thread, allowing for additional accessory configurations.\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\u003eDirect SCT to T-Ring Adaptation at Just 50g\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered for one primary purpose: to create a rigid, secure link between your SCT and your imaging camera. The male SCT threads attach directly to your telescope's rear cell, while the female M42x0.75 threads accept a standard T-ring for your DSLR or a nosepiece on your dedicated astronomy camera. Made of aluminum, the entire unit weighs only 50g, minimizing any balance or focuser strain issues on your 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\u003e30mm of Variable Extension for Precise Focus\u003c\/h3\u003e\n\u003cp\u003eAchieving perfect focus is critical, and the SV167's variable length is its key feature. It provides 30mm of extension travel, allowing you to precisely set the distance between the telescope and your camera's sensor. This adjustability is essential for accommodating the different back-focus requirements of various DSLRs, mirrorless cameras, and dedicated CMOS\/CCD imagers, ensuring you can reach a sharp, stable focus without needing a collection of fixed-length extension tubes.\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 do I use the SVBONY SV167 adapter with my DSLR?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, you need a T-ring specific to your camera brand (e.g., Canon EOS, Nikon F). Screw the T-ring onto the M42x0.75 female threads of the SV167 adapter. Then, screw the adapter's larger SCT-threaded end onto the rear cell of your Schmidt-Cassegrain telescope. Finally, attach your camera body to the T-ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 30mm extension travel on the SV167 adapter allow me to do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e30mm of travel\u003c\/strong\u003e allows you to finely adjust the camera-to-telescope distance. This is crucial for reaching sharp focus, as different cameras have sensors at different depths. It eliminates the need for stacking multiple fixed extension tubes, giving you a single, adjustable solution for focusing your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY SV167 help my mirrorless camera reach focus on a Celestron 8\" SCT for imaging the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal application. SCTs often require significant back focus, especially with mirrorless cameras that have short flange distances. The SV167's 30mm of adjustable extension provides the range needed to push the camera sensor out to the SCT's focal plane, allowing you to capture deep-sky objects like the Orion Nebula (M42).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the different threads on the SVBONY SV167 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV167 has three distinct threads:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMale SCT Thread:\u003c\/strong\u003e This is the larger thread that connects to the back of your Schmidt-Cassegrain telescope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFemale M42x0.75 Thread:\u003c\/strong\u003e This is the standard \"T-thread\" for connecting camera T-rings and other astronomy accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFemale 2\" 24TPI Thread:\u003c\/strong\u003e This internal thread can be used to attach 2\" filters or other specialized accessories inside the light path.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV167 strong enough for a heavy camera setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is made of aluminum and weighs only 50g. It is perfectly suitable for DSLRs, mirrorless cameras, and most small-to-medium format dedicated astronomy cameras. For extremely heavy imaging trains (e.g., a large format camera plus a heavy filter wheel and off-axis guider), you may want to consider a more heavy-duty, threaded connection system to prevent any potential flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm trying to image Jupiter with my ZWO camera and an 11\" SCT. Can the SV167 help if I can't reach focus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. If you cannot achieve focus because the sensor is too close to the telescope, the SVBONY SV167's 30mm extension will help push the camera outward to the correct focal point. This is a common issue when using Barlow lenses or ADC units in a planetary imaging train, and this adapter provides the necessary spacing to solve it.\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\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eMale SCT Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Connection\u003c\/td\u003e\n\u003ctd\u003eFemale 2''24TPI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eFemale M42x0.75 T-Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension Travel\u003c\/td\u003e\n\u003ctd\u003e1.18inch \/ 30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.97inch \/ 50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e50g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBright Black\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 SV167 Camera 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\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":52861245423901,"sku":"SV-W9127A","price":27.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV167-camera-adapter-for-SCT-prime-focus-photography-1_e7e1698c-959a-4fc6-ba72-7c9ce6ebfad2.jpg?v=1788660550"},{"product_id":"svbony-m42x0-75-extension-tube-kit-5mm-10mm-15mm-20mm","title":"SVBONY M42x0.75 Extension Tube Kit (5mm, 10mm, 15mm, 20mm)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eIncludes four M42 extension tubes: 5mm, 10mm, 15mm, and 20mm\u003c\/li\u003e\n\u003cli\u003eStandard M42x0.75mm T2 male and female threads\u003c\/li\u003e\n\u003cli\u003eStackable to achieve combined lengths from 5mm to 50mm\u003c\/li\u003e\n\u003cli\u003eDurable all-metal, black anodized construction\u003c\/li\u003e\n\u003cli\u003eResolves back focus spacing for field flatteners and focal reducers\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 M42x0.75 Extension Tube Kit (5mm, 10mm, 15mm, 20mm)\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY M42x0.75 Extension Tube Kit solves critical back focus issues with four separate metal spacers—5mm, 10mm, 15mm, and 20mm—designed for flatteners and reducers. With standard M42x0.75mm male and female threads, these tubes can be combined in any order to achieve precise extension lengths from 5mm up to 50mm in 5mm increments.\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\u003eDial In Perfect Spacing: 5mm to 50mm of M42x0.75 Extension\u003c\/h3\u003e\n\u003cp\u003eField flatteners and focal reducers require a precise distance to the camera sensor to deliver sharp stars across the frame. This SVBONY kit gives you the tools to hit that target distance precisely. The set includes four separate tubes of 5mm, 10mm, 15mm, and 20mm lengths.\u003c\/p\u003e\n\u003cp\u003eBy stacking the tubes, you can create any spacing you need in 5mm steps, all the way up to a total of 50mm when all four are used together. This flexibility eliminates guesswork and allows you to build out your imaging train to the exact specification your optics require.\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 a Zero-Flex Imaging Train\u003c\/h3\u003e\n\u003cp\u003eEach extension tube in the kit is machined from metal with a black anodized finish to ensure rigidity and minimize internal reflections. The precise M42x0.75mm threads (the common T2 standard) guarantee a secure, flex-free connection between your camera and accessories.\u003c\/p\u003e\n\u003cp\u003eUnlike variable or plastic spacers, these fixed-length metal tubes create a solid, stable optical train. This rigidity is critical for astrophotography, as it prevents sensor tilt and ensures that your optical alignment remains perfect throughout a long imaging session.\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 do I use the SVBONY M42x0.75 Extension Tube Kit to get a specific distance?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can combine the different tubes to achieve your desired length. For example, if you need 25mm of spacing, you would thread the \u003cstrong\u003e5mm\u003c\/strong\u003e and \u003cstrong\u003e20mm\u003c\/strong\u003e tubes together. The kit allows you to create any length in 5mm increments up to the 50mm maximum.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the maximum extension I can achieve with the SVBONY M42 kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe maximum extension is \u003cstrong\u003e50mm\u003c\/strong\u003e, achieved by connecting all four tubes (5mm + 10mm + 15mm + 20mm) together.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill these SVBONY extension tubes work with my astronomy camera and accessories?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, if your equipment uses the standard \u003cstrong\u003eM42x0.75mm T2 thread\u003c\/strong\u003e. This is the most common thread size for astronomy cameras, filter wheels, off-axis guiders, and many field flatteners and reducers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy flattener needs 18mm of back focus. Can I achieve this with the SVBONY M42 kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis kit can provide 15mm or 20mm of spacing, but not exactly 18mm. For such precise, non-5mm increments, you would typically use the 15mm tube from this kit and add a separate, smaller 3mm spacer or a fine-tuning variable ring to achieve the exact distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm connecting my telescope to a DSLR with an M42 T-ring. Can this SVBONY kit adjust the spacing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The M42 T-ring for your DSLR has female M42x0.75mm threads. You can place any combination of these extension tubes between your telescope's flattener\/reducer and the T-ring to set the correct distance to the DSLR's sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the threads on the SVBONY M42 extension tubes the same as T2 threads?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The designation \u003cstrong\u003eM42x0.75mm\u003c\/strong\u003e refers to a metric thread with a 42mm diameter and a 0.75mm thread pitch. This is the specification for the universal \"T2\" thread used in astrophotography.\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\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMale Thread\u003c\/td\u003e\n\u003ctd\u003eM42x0.75mm (T2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFemale Thread\u003c\/td\u003e\n\u003ctd\u003eM42x0.75mm (T2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Lengths\u003c\/td\u003e\n\u003ctd\u003e5mm, 10mm, 15mm, 20mm\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\"\u003e5mm M42x0.75 Extension Tube\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\"\u003e10mm M42x0.75 Extension Tube\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\"\u003e15mm M42x0.75 Extension Tube\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\"\u003e20mm M42x0.75 Extension Tube\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":52861258006813,"sku":"SV-F9160A","price":26.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-M42x0-75-Extension-Tube-Kit-Length-5mm-10mm-15mm-20mm-1_f3874c73-edde-4245-98c9-25118a0c370d.jpg?v=1788660644"},{"product_id":"svbony-sv109-m42-variable-extension-tube","title":"SVBONY SV109 M42 Variable Extension Tube","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eVariable Extension Range: 24mm to 35mm\u003c\/li\u003e\n\u003cli\u003eMale Thread: M42*0.75 (T2-thread)\u003c\/li\u003e\n\u003cli\u003eFemale Thread: M42*0.75 (T2-thread)\u003c\/li\u003e\n\u003cli\u003eAll-Metal Construction\u003c\/li\u003e\n\u003cli\u003eBlack Anodized Finish\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 SV109 Variable M42 Thread Extension Tube\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV109 Variable M42 Thread Extension Tube provides a critical range of adjustment from 24mm to 35mm, allowing you to precisely set the back focus of your imaging train. With standard M42*0.75 threads on both male and female ends, it integrates seamlessly into any T2-threaded setup to achieve optimal spacing for field flatteners, reducers, and off-axis guiders.\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\u003eFine-Tune Your Imaging Train: 24mm to 35mm of Variable Spacing\u003c\/h3\u003e\n\u003cp\u003eAchieving the exact back focus specified by your corrector is non-negotiable for sharp, flat-field images. The SV109 extension tube replaces a whole set of fixed spacers, offering a continuous adjustment range from 24mm to 35mm. This allows you to dial in the perfect distance with sub-millimeter precision, compensating for filter thickness and sensor depth variations without needing to stack multiple 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\u003eSecure M42*0.75 Threading for Any Accessory\u003c\/h3\u003e\n\u003cp\u003eBuilt with all-metal construction and a durable black anodized finish, the SV109 ensures a rigid, non-reflective connection in your optical path. The universal M42*0.75 T2-threads provide compatibility with the vast majority of astronomy cameras, filter wheels, off-axis guiders, and other accessories, eliminating any concerns about flexure or unstable connections.\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\u003eSV109 vs. Fixed Spacers: Why Variable Extension Matters\u003c\/h3\u003e\n\u003cp\u003eWhile fixed T2 spacer rings can get you close to the correct back focus, they rarely get you there exactly. The SV109's variable 24-35mm length gives you the ability to make minute adjustments on the fly. This is invaluable when you add or change a filter, which alters the optical path length, or when trying to perfectly position a guide camera prism relative to the main sensor.\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 primary use for the SVBONY SV109 extension tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV109 is used to add a precise and adjustable amount of distance in an M42\/T2-threaded optical train. Its primary purpose is to achieve the critical \u003cstrong\u003eback focus distance\u003c\/strong\u003e required by field flatteners, coma correctors, and focal reducers for optimal astrophotography results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I set a specific distance, like 30mm, with the SV109?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV109 adjusts by twisting the two barrels. To set a specific distance, you can use a digital caliper to measure the extension as you adjust it. Once the desired length is achieved, the friction of the mechanism holds the position securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SV109 to achieve the standard 55mm back focus for my DSLR and coma corrector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the SV109 is a key component for achieving 55mm. A typical DSLR with a T-ring has about 55mm of back focus on its own. If you add a filter wheel or off-axis guider (which might use 20-30mm), the SV109's \u003cstrong\u003e24-35mm range\u003c\/strong\u003e is perfect for making up the remaining distance precisely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the M42 threads on the SV109 connect to my Celestron T-adapter or ZWO camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The SV109 uses the astronomical standard M42*0.75 thread, commonly known as the T2-thread. This is the same thread used on virtually all Celestron T-adapters, ZWO and QHY astronomy cameras, and most filter wheels and off-axis guiders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV109 strong enough for a heavy astronomy camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV109 features all-metal construction. It is designed to be rigid and can securely hold common cooled astronomy cameras and DSLRs without flexure, ensuring your imaging train remains perfectly aligned.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the inside of the SV109 extension tube black?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe black anodized finish on both the interior and exterior surfaces minimizes stray light reflections. This is critical for maintaining high contrast in your images by preventing internal reflections from reaching the camera sensor.\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\u003eType\u003c\/td\u003e\n\u003ctd\u003eAstronomical T2 thread Extension Tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMale Thread\u003c\/td\u003e\n\u003ctd\u003eM42*0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFemale Thread\u003c\/td\u003e\n\u003ctd\u003eM42*0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVariable Extension\u003c\/td\u003e\n\u003ctd\u003e24-35mm\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\"\u003eSV109 Variable M42 Extension Tube\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":52861259546909,"sku":"SV-F9180A","price":28.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV109-Variable-M42-Thread-Extension-Tube-1_0b834a10-c441-4ae7-a9e2-cad3ca34972e.jpg?v=1788660653"},{"product_id":"svbony-sv109-m48-variable-extension-tube-24-35mm","title":"SVBONY SV109 M48 Variable Extension Tube 24-35mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eVariable Extension Range: 24mm to 35mm\u003c\/li\u003e\n\u003cli\u003eThread Type: M48x0.75 Male \u0026amp; Female\u003c\/li\u003e\n\u003cli\u003eReplaces Multiple Fixed Spacer Rings\u003c\/li\u003e\n\u003cli\u003eInternal Anti-Reflection Baffling\u003c\/li\u003e\n\u003cli\u003eLightweight Anodized Aluminum 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 SV109 M48 Variable Extension Tube 24-35mm\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV109 M48 Variable Extension Tube provides a continuous adjustment range from 24mm to 35mm, solving critical back focus spacing for field flatteners and focal reducers. With standard M48x0.75 threads, this single accessory replaces an entire set of fixed spacers, allowing you to precisely dial in the exact distance your imaging train requires for perfectly sharp stars.\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\u003eAchieve 24mm to 35mm of Critical Back Focus\u003c\/h3\u003e\n\u003cp\u003eGetting the spacing right for a field flattener or focal reducer is non-negotiable for sharp, round stars across your entire sensor. The Svbony SV109 replaces a whole set of fixed spacer rings with a single, adjustable unit, providing a continuous range from 24mm to 35mm. This 11mm of precise travel lets you dial in the exact back focus your optical train needs without the tedious process of unthreading and stacking different components.\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 Anodized Aluminum Build with Internal Baffling\u003c\/h3\u003e\n\u003cp\u003eConstructed from lightweight yet durable anodized aluminum, the SV109 maintains rigidity in your imaging setup. It features standard M48x0.75 male and female threads, ensuring broad compatibility with 2-inch format accessories like filter wheels and camera adapters. To maximize image contrast, the entire interior surface is threaded, creating an effective light baffle that traps stray reflections and prevents them from reaching your sensor.\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 SV109 Variable Extension Tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary purpose of the Svbony SV109 is to precisely set the distance between a field flattener or focal reducer and the camera sensor. It provides a \u003cstrong\u003e24mm to 35mm adjustable range\u003c\/strong\u003e to achieve the exact back focus required for a flat imaging field, eliminating the need for multiple fixed-length spacers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I adjust the length of the SV109 extension tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou adjust the length by twisting the two barrels of the extender. This helical mechanism provides smooth, continuous adjustment across its \u003cstrong\u003e11mm range\u003c\/strong\u003e. Once you find the correct spacing, the friction holds its position securely for your imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Svbony SV109 work with my 2-inch filters and accessories?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The SV109 uses the standard \u003cstrong\u003eM48x0.75 thread\u003c\/strong\u003e, which is the common thread size for 2-inch filters, filter wheels, off-axis guiders, and camera adapters designed for full-frame or large-sensor astronomical imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy does the SV109 have internal threads?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe internal threading acts as an effective light baffle. This design scatters and absorbs any stray light that enters the tube, preventing it from causing internal reflections that can \u003cstrong\u003ereduce contrast\u003c\/strong\u003e and introduce artifacts in your astrophotos.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy reducer needs 55mm of back focus. Can I use the SV109 to get there from my camera's 20mm flange distance?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal use case. If you need 35mm of spacing (55mm total minus your camera's 20mm), you can set the SV109 to its maximum extension of \u003cstrong\u003e35mm\u003c\/strong\u003e to achieve the correct distance. This single accessory provides the exact spacing required without needing any other parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging the Andromeda Galaxy (M31) with a small refractor and a flattener. Why is the SV109 better than fixed rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging a large target like the Andromeda Galaxy (M31), achieving a perfectly flat field is essential. The SV109 allows for micro-adjustments in spacing (e.g., setting it to 28.5mm) that are impossible with fixed rings. This fine control lets you perfectly tune the flattener's distance for your specific telescope, ensuring \u003cstrong\u003esharp stars across the entire frame\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861259579677,"sku":"SV-F9180B","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV109-M48-Variable-Extension-Tube-24-35mm-for-Telescope-1_e82cc8cd-c8df-427d-a20a-47daab065457.jpg?v=1788660662"},{"product_id":"svbony-sv119-m48x0-75-extension-tube-kit-5mm-10mm-15mm-30mm","title":"SVBONY SV119 M48x0.75 Extension Tube Kit (5mm, 10mm, 15mm, 30mm)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFour-piece M48 extension tube kit\u003c\/li\u003e\n\u003cli\u003eIncludes 5mm, 10mm, 15mm, and 30mm lengths\u003c\/li\u003e\n\u003cli\u003eStandard M48x0.75 male and female threads\u003c\/li\u003e\n\u003cli\u003eStackable design for custom spacing\u003c\/li\u003e\n\u003cli\u003eInternally threaded to reduce reflections\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 SV119 M48 Extension Tube Kit (5mm, 10mm, 15mm, 30mm)\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV119 M48 Extension Tube kit provides the essential components for correcting spacing issues in any astrophotography train using M48x0.75 threads. This set includes four distinct tube lengths—5mm, 10mm, 15mm, and 30mm—allowing you to dial in the precise back focus required by field flatteners and focal reducers. By combining these tubes, you can achieve spacing from 5mm up to 60mm in 5mm increments, eliminating a critical source of image distortion.\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\u003eAchieve Precise Back Focus with 5mm, 10mm, 15mm, and 30mm Tubes\u003c\/h3\u003e\n\u003cp\u003eField flatteners and focal reducers require a specific distance to the camera sensor to function correctly, and this kit is the solution. With individual 5mm, 10mm, 15mm, and 30mm extensions, you have the building blocks to hit that target spacing exactly. For example, stacking the 5mm and 10mm tubes gives you 15mm, while combining all four provides 60mm of extension, covering the most common back focus requirements for popular optical correctors.\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*0.75 Anodized Aluminum with Anti-Reflection Threads\u003c\/h3\u003e\n\u003cp\u003eConstructed from black anodized aluminum, each tube in the SV119 kit is both lightweight and durable. The standard M48x0.75 threads ensure compatibility with 2-inch filter wheels, off-axis guiders, and camera adapters. To maintain maximum image contrast, the interior of each tube is threaded to trap stray light and prevent internal reflections from degrading your final image.\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 SV119 M48 Extension Tube kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary purpose of the SV119 kit is to achieve the precise \u003cstrong\u003eback focus\u003c\/strong\u003e (sensor-to-corrector distance) required by optical accessories like field flatteners, coma correctors, and focal reducers. The kit includes four lengths—\u003cstrong\u003e5mm, 10mm, 15mm, and 30mm\u003c\/strong\u003e—that can be stacked to create the exact spacing needed for sharp, aberration-free stars across your entire field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I use the SV119 kit to get 55mm of spacing for my field flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost flatteners require 55mm of back focus. To achieve this with the SV119 kit, you would stack the \u003cstrong\u003e30mm\u003c\/strong\u003e, \u003cstrong\u003e15mm\u003c\/strong\u003e, and \u003cstrong\u003e10mm\u003c\/strong\u003e tubes together (30 + 15 + 10 = 55mm). This allows you to precisely match the optical design requirements of your corrector using only the components in this kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the M48x0.75 threads on the SV119 kit compatible with standard 2\" filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The \u003cstrong\u003eM48x0.75\u003c\/strong\u003e thread is the standard for 2-inch astronomy filters. This means you can thread these extension tubes directly onto filter wheels, filter drawers, or camera nosepieces that accept 2\" filters, making them a versatile addition to almost any imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SV119 extension tubes with my DSLR and a coma corrector on an f\/4 Newtonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. An f\/4 Newtonian requires a coma corrector, which in turn needs precise spacing (often 55mm) to work correctly. You would place the appropriate combination of SV119 tubes between your M48 T-ring on your DSLR and the coma corrector to achieve that distance, ensuring sharp stars from edge to edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the internal threading in the SV119 tubes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe internal threads act as light baffles. They are designed to trap off-axis light that might otherwise reflect off the inner surfaces of the tubes and reach the camera sensor. This reduces internal glare and significantly improves image contrast, resulting in a darker sky background and more vibrant detail in your astrophotos.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack all four SV119 tubes together?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, you can stack all four tubes (\u003cstrong\u003e5mm + 10mm + 15mm + 30mm\u003c\/strong\u003e) to achieve a total extension of 60mm. This modularity is the key feature of the kit, providing a wide range of spacing options from 5mm to 60mm in 5mm increments.\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\u003eType\u003c\/td\u003e\n\u003ctd\u003eAstronomical Extension Tube Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMale Thread\u003c\/td\u003e\n\u003ctd\u003eM48*0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFemale Thread\u003c\/td\u003e\n\u003ctd\u003eM48*0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Lengths\u003c\/td\u003e\n\u003ctd\u003e5mm, 10mm, 15mm, 30mm\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\"\u003e5mm M48 Extension Tube\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\"\u003e10mm M48 Extension Tube\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\"\u003e15mm M48 Extension Tube\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\"\u003e30mm M48 Extension Tube\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":52861260955933,"sku":"SV-F9190A","price":29.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV119-M48-Extension-Tube-kit-of-5mm-10mm-15mm-30mm-1_0d99cc11-9e68-42ac-aba2-52bf6a006ba7.jpg?v=1788660672"},{"product_id":"svbony-telescope-focuser-adapter-m42x0-75-for-reflectors-125in","title":"SVBONY Telescope Focuser Adapter M42x0.75 for Reflectors - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts M42x0.75 male threads to accept 1.25\" eyepieces and accessories\u003c\/li\u003e\n\u003cli\u003eProvides 37mm to 47mm of adjustable focus distance\u003c\/li\u003e\n\u003cli\u003eThree locking thumbscrews ensure a secure, centered grip\u003c\/li\u003e\n\u003cli\u003eDurable, all-metal anodized aluminum construction\u003c\/li\u003e\n\u003cli\u003eWeighs only 70g (2.46oz)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSVBONY 1.25\" Telescope Focuser Adapter M42x0.75 for Reflector\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY 1.25\" Telescope Focuser Adapter adds a critical 10mm of fine-focus travel to any reflector telescope with an M42x0.75 threaded focuser. This all-metal, 70g adapter allows you to precisely adjust focus from a minimum of 37mm to a maximum of 47mm, perfect for achieving sharp focus with cameras or non-parfocal eyepieces. Three locking screws provide a secure, non-slip grip on any 1.25\" accessory, ensuring perfect alignment and stability throughout your observing 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\u003eAdjustable Focus: 10mm of Travel from 37mm to 47mm\u003c\/h3\u003e\n\u003cp\u003eThis adapter's primary function is to provide an additional layer of focus control. The helical focusing mechanism gives you a 10mm range of adjustment, variable between 37mm and 47mm of extension. This is invaluable for fine-tuning focus on planetary cameras without touching the telescope's main focuser, or for bringing different eyepieces to a sharp image without constantly racking the focuser in and out.\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 3-Screw Grip for 1.25\" Accessories\u003c\/h3\u003e\n\u003cp\u003eUnlike simple adapters with a single set screw, the SVBONY M42 Focuser Adapter uses three thumbscrews to hold your 1.25\" accessories. This three-point contact system ensures your eyepiece or camera is perfectly centered in the optical path and held firmly without any wobble or tilt. The durable, anodized all-metal construction guarantees longevity and resists wear from repeated 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\u003eSVBONY M42 Adapter vs. Fixed Adapters: The 10mm Advantage\u003c\/h3\u003e\n\u003cp\u003eStandard M42 to 1.25\" adapters offer a fixed optical length, which can prevent you from reaching focus with certain accessory combinations. The SVBONY adapter solves this problem by giving you 10mm of travel to work with. This flexibility can be the difference between a sharp, focused image and one that's just out of reach, making it a superior choice for imagers and visual observers who frequently swap equipment.\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 benefit of the SVBONY M42 Focuser Adapter's adjustable length?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe main benefit is gaining an extra \u003cstrong\u003e10mm of fine focus travel\u003c\/strong\u003e (from 37mm to 47mm). This allows you to achieve critical focus with astrophotography cameras or bring non-parfocal eyepieces into focus without needing to make large adjustments with your telescope's main focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the 37mm to 47mm focus range on the SVBONY adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter functions as a simple helical focuser. After threading it onto your telescope's M42 focuser, you can extend or retract the 1.25\" barrel by twisting the main body of the adapter. This provides smooth, continuous adjustment within its 10mm travel range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this SVBONY adapter work with my 8\" f\/5 Newtonian reflector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, provided your 8\" f\/5 Newtonian's focuser has a male \u003cstrong\u003eM42x0.75 thread\u003c\/strong\u003e for accessory attachment. This adapter is specifically designed for reflector telescopes and is an excellent tool for adding fine-focus capability, which is especially useful at faster focal ratios like f\/5.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY M42 adapter for attaching a planetary camera to my reflector for imaging Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This is an ideal use case. The adapter's fine focus control allows you to make the precise, minute adjustments necessary to get Jupiter's cloud bands perfectly sharp, something that can be difficult with a coarse primary focuser. The three locking screws will hold your camera securely and centered.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the M42x0.75 thread on the SVBONY adapter signify?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eM42x0.75 is a standard thread size in astronomy, often called a \"T-thread\" or \"T2-thread.\" The 'M42' refers to the 42mm diameter, and '0.75' refers to the 0.75mm thread pitch. This adapter has a female M42x0.75 thread, meaning it will connect to any focuser or accessory with a corresponding male thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the three-screw design on the SVBONY adapter important?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe three-screw design provides a more secure and centered grip on your 1.25\" accessory compared to a single screw. It prevents the eyepiece or camera from tilting, which is critical for maintaining good optical alignment, especially during astrophotography.\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\u003eFemale Thread\u003c\/td\u003e\n\u003ctd\u003eM42*0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShortest Focus Distance\u003c\/td\u003e\n\u003ctd\u003e37mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLongest Focus Distance\u003c\/td\u003e\n\u003ctd\u003e47mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e70g \/ 2.46oz\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 1.25\" Focuser 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 Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861262561565,"sku":"SV-F9163A","price":20.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-1-25-Telescope-Focuser-Adapter-M42x0-75-for-Reflector-1_cf8b0cce-8567-4d6f-81ff-357cb7980220.jpg?v=1788660694"},{"product_id":"svbony-telescope-eyepiece-adapter-with-coaxial-lock-and-ptfe-inner-ring-125in","title":"SVBONY Telescope Eyepiece Adapter with Coaxial Lock and PTFE Inner Ring - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts M42 threaded accessories to 1.25\" focusers and holders\u003c\/li\u003e\n\u003cli\u003eCoaxial locking mechanism ensures a self-centering, secure grip\u003c\/li\u003e\n\u003cli\u003ePETF inner ring prevents scratches on eyepiece barrels\u003c\/li\u003e\n\u003cli\u003eLightweight design adds only 71.8g (2.53oz) to your optical train\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSvbony 1.25\" Telescope Eyepiece Adapter Coaxial Lock PETF Inner Ring\u003c\/h2\u003e\n\u003cp\u003eThe Svbony 1.25\" Coaxial Lock Adapter securely connects M42 threaded accessories to any standard 1.25\" focuser or visual back. Its coaxial locking mechanism provides a perfectly centered, 360-degree grip that outperforms simple thumbscrews, all within a lightweight 71.8g (2.53oz) body.\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 Lock with a 71.8g PETF Ring: Secure, Non-Marring Grip\u003c\/h3\u003e\n\u003cp\u003eUnlike single-point thumbscrews that can push eyepieces off-axis or brass compression rings that can bind, this adapter's coaxial lock applies uniform pressure around the barrel. A simple twist of the blue collar activates the lock, centering your eyepiece or camera perfectly in the optical path. The internal contact surface is a durable PETF ring, which provides a firm hold without scratching or marring the finish on your 1.25\" accessories.\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\u003eSystem Integration: Connect 1.25\" Cameras to SV28, SV14, and SV13 Scopes\u003c\/h3\u003e\n\u003cp\u003eThis adapter is a key component for connecting Svbony cameras to Svbony spotting scopes for digiscoping. By pairing this adapter with a specific extension tube, you can achieve a solid, threaded connection for astrophotography or terrestrial imaging with your 1.25\" camera.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor SV28 \u0026amp; SV14 Scopes:\u003c\/strong\u003e Use this adapter (F9164A) with the F9110A extension tube to connect 1.25\" cameras like the Svbony SC001, SV105, or SV205.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor SV13 Scopes:\u003c\/strong\u003e Use this adapter (F9164A) with the F9162A extension tube to connect your 1.25\" camera.\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 does the Svbony Coaxial Lock Adapter improve on a standard thumbscrew adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard thumbscrew pushes an eyepiece or camera to one side, which can introduce tilt and misalignment in the optical path. The \u003cstrong\u003eSvbony Coaxial Lock Adapter\u003c\/strong\u003e applies even, 360° pressure, ensuring the accessory is perfectly centered and parallel to the focal plane. This results in sharper images, especially during imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the PETF inner ring on this M42 to 1.25\" adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003ePETF (Polyethylene Terephthalate)\u003c\/strong\u003e inner ring is a durable, non-metallic material that provides a secure grip without damaging your accessories. Unlike brass compression rings that can leave marks or metal thumbscrews that can dig into barrels, the PETF ring protects the finish of your eyepieces and cameras, keeping them in pristine condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 71.8g adapter add significant weight to my setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, at just \u003cstrong\u003e71.8g (2.53oz)\u003c\/strong\u003e, the adapter is very lightweight and will not cause significant balance issues on most telescope mounts or spotting scope tripods. Its low weight makes it an ideal choice for portable and lightweight imaging setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I connect my Svbony SV105 camera to my SV28 spotting scope using this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo connect an SV105 camera to an SV28 spotting scope, you will need two components: this \u003cstrong\u003eSvbony 1.25\" Coaxial Lock Adapter (F9164A)\u003c\/strong\u003e and the Svbony F9110A extension tube. The extension tube threads onto the scope, and this adapter threads into the extension tube, providing a secure 1.25\" port for your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have an SV13 spotting scope. What else do I need besides the Svbony Coaxial Lock Adapter to attach a 1.25\" camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor the SV13 spotting scope, you will need this \u003cstrong\u003eSvbony 1.25\" Coaxial Lock Adapter (F9164A)\u003c\/strong\u003e and the Svbony F9162A extension tube. This specific combination provides the correct spacing and threading to connect a 1.25\" camera to your SV13 scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"M42\" refer to on this 1.25\" adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eM42\u003c\/strong\u003e refers to the thread specification on the telescope side of the adapter. It has a diameter of 42mm with a specific thread pitch. This allows it to connect to focusers, extension tubes, or other accessories that use this common M42 thread standard, converting them to accept standard 1.25\" push-fit eyepieces and 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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eM42 to 1.25\" Mount Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack + Blue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e71.8g \/ 2.53oz\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 1.25\" Focuser 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":52861262790941,"sku":"SV-F9164A","price":22.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-1-25-Telescope-Eyepiece-Adapter-Coaxial-Lock-PETF-Inner-Ring-1_8c9e429e-e3d3-4c15-a966-1af5bb6accee.jpg?v=1788660702"},{"product_id":"svbony-sv195-m48x0-75-t-ring-adapter-for-canon-eos-dslr","title":"SVBONY SV195 M48x0.75 T-Ring Adapter for Canon EOS DSLR","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Canon EF\/EF-S mount cameras to M48x0.75 threaded accessories\u003c\/li\u003e\n\u003cli\u003e3-screw system allows for precise sensor tilt and orthogonality adjustment\u003c\/li\u003e\n\u003cli\u003eM48 \"wide\" T-ring format minimizes vignetting on larger sensors\u003c\/li\u003e\n\u003cli\u003eDurable, all-metal construction ensures a secure connection\u003c\/li\u003e\n\u003cli\u003eIdeal for astrophotography setups using field flatteners or coma correctors\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 SV195 T Ring Adapter EF Mount for Canon EOS DSLR Telescope\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV195 T Ring Adapter provides a secure, adjustable connection between your Canon EF-mount DSLR and any M48x0.75 threaded accessory. Unlike standard rings, its unique 3-screw adjustment system allows you to correct for sensor tilt, ensuring your camera is perfectly orthogonal to the optical axis for sharp, consistent stars across the frame.\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\u003eM48x0.75 Threads: A Direct Connection to Your Imaging Train\u003c\/h3\u003e\n\u003cp\u003eThe SV195 features standard female M48x0.75 threads, making it the ideal interface for connecting your Canon EOS camera to modern field flatteners, reducers, or coma correctors. This larger thread size minimizes vignetting compared to older T2 (M42) standards, especially when using cameras with full-frame or APS-C sensors.\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-Screw Adjustment: Achieve Perfect Sensor Orthogonality\u003c\/h3\u003e\n\u003cp\u003eThe critical feature of the SV195 is its integrated horizontal adjustment mechanism. By loosening and tightening three small screws on the adapter's side with the included tool, you can precisely tilt the inner ring, correcting for any sensor misalignment in your imaging train. This eliminates the frustration of elongated stars in one corner of your image, a common problem caused by minute mechanical tolerances stacking up between components.\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\u003eSV195 vs. Standard T-Rings: The Advantage of Adjustability\u003c\/h3\u003e\n\u003cp\u003eA standard T-ring offers a simple, fixed connection. While effective, it provides no way to compensate for tilt. The Svbony SV195 directly addresses this limitation, giving you the control to achieve perfect orthogonality, a feature typically found in much more expensive, specialized adapters. For imagers serious about edge-of-field star quality, this adjustability is not a luxury—it's essential.\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 benefit of the Svbony SV195 T-Ring over a non-adjustable one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe main benefit of the Svbony SV195 is its \u003cstrong\u003e3-screw adjustment system\u003c\/strong\u003e. This allows you to correct for sensor tilt, ensuring your stars are sharp across the entire field of view, which is something a fixed, non-adjustable T-ring cannot do.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich cameras are compatible with the Svbony SV195 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Svbony SV195 is designed for any Canon DSLR or mirrorless camera that uses the \u003cstrong\u003eCanon EF or EF-S lens mount\u003c\/strong\u003e. This includes the vast majority of Canon EOS cameras. It is not compatible with Canon's newer RF or M mount systems without an additional EF-mount adapter from Canon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the M48x0.75 thread on the Svbony SV195 connect to?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe M48x0.75 female thread is a common standard in astrophotography, often called a \"2-inch filter thread\" or \"wide T-ring thread.\" It connects directly to most modern \u003cstrong\u003efield flatteners, coma correctors, and off-axis guiders\u003c\/strong\u003e that are designed to illuminate larger sensors and minimize vignetting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using the Svbony SV195 with my 8\" SCT and a focal reducer. Why are my stars in one corner misshapen?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is likely due to sensor tilt, which the Svbony SV195 is designed to fix. Use the included tool to slightly loosen the three adjustment screws. While viewing a star field on your screen, make tiny adjustments to the screws to change the camera's tilt until the stars in all four corners are as round as possible, then gently retighten them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I adjust the Svbony SV195 to align my Canon 6D with my refractor's field flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, securely attach the Svbony SV195 to your Canon 6D and then thread it onto the M48 port of your flattener. Take a short test exposure of a dense star field. If you notice elongated stars in one corner, use the adjustment screws to slightly alter the camera's angle relative to the flattener until a new test image shows improved star shapes across the entire full-frame sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the adjustment process for the Svbony SV195 difficult?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe process is straightforward but requires patience. It involves making small, incremental changes with the three adjustment screws while taking test images to see the effect. The key is to make minor adjustments to one screw at a time until perfect alignment is achieved.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSV195\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eCanon EF \/ EF-S Bayonet Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment Mechanism\u003c\/td\u003e\n\u003ctd\u003e3-Screw Orthogonal Tilt Adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eCanon EOS DSLR \/ Mirrorless Cameras (EF\/EF-S Mount)\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 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861267509533,"sku":"SV-W2054B","price":13.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV195-T-Ring-Adapter-EF-Mount-for-Canon-EOS-DSLR-Telescope-1_793174ee-eb03-42df-aa89-4ae15cef88b2.jpg?v=1788660855"},{"product_id":"svbony-sv194-wide-48mm-t-ring-adapter-for-nikon-f-mount","title":"SVBONY SV194 Wide 48mm T-Ring Adapter for Nikon F-Mount","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Nikon F-Mount cameras to M48 (2-inch filter) threads\u003c\/li\u003e\n\u003cli\u003eWide 48mm clear aperture minimizes vignetting on full-frame sensors\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure, no-flex connection\u003c\/li\u003e\n\u003cli\u003eDurable all-metal construction\u003c\/li\u003e\n\u003cli\u003eMatte-black interior to reduce internal reflections\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 SV194 Photography Adapter for Nikon Camera w\/ F-Mount\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV194 Photography Adapter creates a dedicated mechanical connection between a Nikon F-mount camera body and any telescope focuser, field flattener, or corrector with M48x0.75 threads. This wide T-ring is engineered to provide a stable, secure link for astrophotography, ensuring your camera sensor is held perfectly parallel to the focal plane without flexure.\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 Connection: The SV194 Nikon F-Mount to 48mm T-Adapter\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides a direct, camera-specific connection that is more stable and precise than universal adapters. By matching the Nikon F-mount bayonet on one side and the common M48 accessory thread on the other, the SV194 eliminates potential points of failure or misalignment in your imaging train. The result is a rigid connection that reliably supports the weight of a DSLR camera for long-exposure 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\u003e48mm vs. 42mm T-Rings: Why Wider Matters for Full-Frame Sensors\u003c\/h3\u003e\n\u003cp\u003eWhile standard T-rings use a 42mm (M42) thread, the SVBONY SV194 adapter utilizes the larger 48mm (M48) standard. This wider aperture is critical for imagers using full-frame DSLR cameras, such as the Nikon D810 or D850. A 42mm thread can act as a bottleneck, causing vignetting (darkening) in the corners of large sensors, while the 48mm opening of the SV194 ensures the entire sensor is fully illuminated by the corrected field from your flattener or reducer.\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 primary use for the SVBONY SV194 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV194 is a T-ring adapter designed specifically for astrophotography. It allows you to securely attach a \u003cstrong\u003eNikon F-mount DSLR camera\u003c\/strong\u003e body directly to a telescope's focuser, field flattener, or other imaging accessory that uses a standard \u003cstrong\u003eM48x0.75 thread\u003c\/strong\u003e (often called a \"wide\" T-thread or 2-inch filter thread).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SV194 adapter work with my Nikon D850 on a telescope with a 2-inch focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal combination. The Nikon D850 is a full-frame camera, and the SV194's wide 48mm aperture is designed to prevent vignetting on large sensors. You will typically thread the SV194 onto a 2-inch nosepiece or directly onto a field flattener that terminates in M48 threads, which then inserts into your 2-inch focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I choose this 48mm SV194 T-Ring over a standard 42mm version?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eChoose the 48mm SV194 T-Ring if you are using a \u003cstrong\u003efull-frame camera\u003c\/strong\u003e or an imaging system with a large, corrected image circle. The wider 48mm opening passes more light to the corners of the sensor than a 42mm ring, significantly reducing or eliminating mechanical vignetting that can be difficult to correct with flat frames.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the SVBONY SV194 adapter add any optical elements?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The SV194 is a purely mechanical adapter. It contains no lenses or glass and does not alter the focal length or optical properties of your telescope. Its sole function is to create a secure physical connection between the camera and the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SV194 to image the Andromeda Galaxy (M31) with my full-frame Nikon and a field flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This is a perfect application for the SV194. When imaging a large target like the Andromeda Galaxy (M31), you want to use the entire area of your full-frame sensor. The SV194's 48mm aperture ensures that the light cone from your field flattener isn't clipped before it reaches the sensor, preserving brightness and detail in the corners of your image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SV194 compatible with Nikon Z-mount mirrorless cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is designed exclusively for the \u003cstrong\u003eNikon F-mount\u003c\/strong\u003e, which is the standard for Nikon DSLR cameras. It will not physically attach to a Nikon Z-mount mirrorless camera body. You would need a different T-ring specifically made for the Z-mount.\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\"\u003eSV194 Photography Adapter for Nikon F-Mount\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 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861267575069,"sku":"SV-W1077B","price":13.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV194-Photography-Adapter-for-Nikon-Camera-w-F-Mount-1_612176eb-8e45-4e5d-8e6a-31b175d7d1b2.jpg?v=1788660863"},{"product_id":"svbony-sv195-m42x0-75-t-ring-adapter-for-canon-eos-dslr","title":"SVBONY SV195 M42x0.75 T-Ring Adapter for Canon EOS DSLR","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Canon EOS DSLR cameras to standard telescope T-threads\u003c\/li\u003e\n\u003cli\u003eFeatures a 3-screw mechanism for precise rotational adjustment\u003c\/li\u003e\n\u003cli\u003eAllows for fine-tuning of camera orientation and image framing\u003c\/li\u003e\n\u003cli\u003eDurable, all-metal construction ensures a rigid, no-flex connection\u003c\/li\u003e\n\u003cli\u003eDesigned for the Canon EF lens mount\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 SV195 T-Ring Adapter EF Mount for Canon EOS DSLR Telescope\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV195 T-Ring Adapter provides a secure, adjustable connection between your Canon EOS camera and any telescope equipped with standard T-threads. Engineered for astrophotography, its key feature is a rotational adjustment system that allows you to perfectly frame your target without having to unlock and rotate the entire camera body. This adapter's sturdy build ensures a solid link in your imaging train for sharp, lossless image 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\u003eA Solid Connection for Canon EOS Astrophotography\u003c\/h3\u003e\n\u003cp\u003eThis adapter is precision-engineered to mate securely with the Canon EF mount, creating a rigid connection to your telescope's focuser or field flattener. The durable, all-metal construction prevents flexure that can ruin long exposures by causing tilted or elongated stars. By ensuring a seamless and stable link, the SV195 protects the integrity of your optical train from the camera sensor to the 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\u003eFine-Tune Your Framing with 3-Screw Rotational Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe standout feature of the Svbony SV195 is its integrated rotational adjuster. Using the included tool, you can loosen three small screws on the side of the adapter, which frees an inner ring. This allows you to rotate your attached Canon camera independently of the telescope threads, giving you fine control over the final orientation of your image before you tighten the screws to lock it in place.\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 SV195 vs. Standard T-Rings: The Advantage of Adjustment\u003c\/h3\u003e\n\u003cp\u003eA standard T-ring provides a fixed connection. Once threaded on, the camera's orientation is locked, and achieving perfect framing of objects like the Andromeda Galaxy (M31) or the Veil Nebula (NGC 6960) can be frustrating. With the SV195, you gain critical functionality:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard T-Ring Limitation:\u003c\/strong\u003e To adjust framing, you must slightly unthread the entire T-ring or rotate the camera body in its bayonet mount, risking a loss of focus or a loose connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSvbony SV195 Solution:\u003c\/strong\u003e You simply loosen the three set screws, rotate the camera to the ideal angle for your composition, and re-tighten. The connection to the telescope remains solid and unmoved throughout the adjustment.\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 Svbony SV195's adjustable design?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit is \u003cstrong\u003eprecise framing control\u003c\/strong\u003e. The 3-screw rotational adjustment allows you to fine-tune your camera's orientation after it's attached to the telescope. This is essential for composing images of specific deep-sky objects without having to loosen the entire camera or adapter from the optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I adjust the rotation of my Canon camera with the SV195 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUse the included tool to slightly loosen the three screws located on the side of the adapter. This will free the inner ring that holds the camera. You can then rotate your camera to the desired angle. Once you have your composition set, gently tighten the three screws to lock the position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Svbony SV195 compatible with Canon mirrorless cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed for the \u003cstrong\u003eCanon EF mount\u003c\/strong\u003e, which is standard on Canon DSLR cameras like the EOS Rebel series. It is not directly compatible with Canon's mirrorless RF or EF-M mounts. To use it with a mirrorless camera, you would need an additional EF-to-RF or EF-to-EF-M adapter from Canon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm trying to frame the Horsehead Nebula (B33) vertically with my Canon DSLR on my SCT. How does the SV195 help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is a perfect use case for the SV195. After attaching your camera to your SCT, the Horsehead Nebula might be oriented horizontally. With a standard T-ring, you'd be stuck. With the SV195, you can simply loosen the set screws, rotate the camera 90 degrees to get your desired vertical composition, and lock it down without affecting focus or alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Svbony SV195 work with my 80mm refractor and its T-threaded focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Svbony SV195 adapter has standard female T-threads (often specified as M42x0.75) that will connect to any telescope focuser, field flattener, or other accessory that terminates in male T-threads. This makes it universally compatible with the vast majority of astronomy imaging equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the SV195 T-Ring add a lot of length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile specific dimensions are not provided, the SV195 is designed as a low-profile T-ring. It adds a minimal amount of back focus to the imaging train, comparable to most standard, non-adjustable T-rings. It should not cause issues reaching focus on most telescopes that are designed for DSLR astrophotography.\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\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eCanon EOS cameras with EF mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eFemale T-Threads (M42x0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment Mechanism\u003c\/td\u003e\n\u003ctd\u003e3-Screw Rotational System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eAll-metal\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 SV195 Adjustable T-Ring for Canon EF\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\"\u003eAdjustment Tool\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 Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861267804445,"sku":"SV-W2054A","price":11.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV195-T-Ring-Adapter-EF-Mount-for-Canon-EOS-DSLR-Telescope-1-W2054A_a146a652-1ba7-4bce-85a5-96b13ae66589.jpg?v=1788660877"},{"product_id":"svbony-sv194-t2-m42x0-75-photography-adapter-for-nikon","title":"SVBONY SV194 T2 M42x0.75 Photography Adapter for Nikon","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Nikon F-Mount cameras to standard T-threads\u003c\/li\u003e\n\u003cli\u003eStandard M42x0.75 female threads for wide compatibility\u003c\/li\u003e\n\u003cli\u003eEnables prime-focus astrophotography through a telescope\u003c\/li\u003e\n\u003cli\u003eDurable, all-metal construction for a rigid connection\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 SV194 Photography Adapter for Nikon Camera w\/ F-Mount\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV194 Photography Adapter provides the essential mechanical link to connect your Nikon F-mount camera directly to your telescope's optical path. This T-Ring adapts the bayonet-style F-mount to the universal M42x0.75 T-thread standard used on focusers, field flatteners, and other astrophotography accessories. By creating a secure, direct coupling, the SV194 enables prime-focus imaging, turning your telescope into a powerful telephoto lens for your Nikon camera.\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\u003eSV194: The M42x0.75 Link for Nikon F-Mount Astrophotography\u003c\/h3\u003e\n\u003cp\u003eThis adapter is the fundamental component for any Nikon DSLR or mirrorless user entering into deep-sky or planetary imaging. One side features the precise Nikon F-mount bayonet, ensuring a secure fit to your camera body. The other side presents a standard female M42x0.75 thread, allowing you to connect to virtually any telescope equipped with a T-adapter or accessories that terminate in a male T-thread.\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 Secure Connection for Prime-Focus Imaging\u003c\/h3\u003e\n\u003cp\u003eIn astrophotography, any flexure or tilt in the imaging train can elongate stars and ruin an image. The SVBONY SV194 is built from machined metal to create a rigid, stable connection between your heavy camera body and the focuser. This precision engineering ensures your camera's sensor remains perfectly parallel to the focal plane, maintaining sharp focus from corner to corner during long exposures.\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 SVBONY SV194 adapter used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV194 is a T-Ring adapter. Its primary function is to connect a \u003cstrong\u003eNikon camera with an F-mount\u003c\/strong\u003e to a telescope for \u003cstrong\u003eprime-focus astrophotography\u003c\/strong\u003e. It converts the Nikon bayonet mount into the standard M42x0.75 T-thread used by most telescope focusers and astro-imaging accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Nikon cameras are compatible with the SV194 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is compatible with any Nikon camera that uses the \u003cstrong\u003eNikon F-mount\u003c\/strong\u003e. This includes a vast range of Nikon DSLR cameras (D-series) and can also be used with Z-series mirrorless cameras via the official Nikon FTZ adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the SV194 adapter to my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo attach the SV194 to a Schmidt-Cassegrain Telescope (SCT), you will typically need a separate \"T-Adapter\" that threads onto the rear cell of the SCT. First, thread the T-Adapter onto your telescope. Then, thread the SVBONY SV194 onto the male T-threads of the T-Adapter. Finally, connect your Nikon camera to the SV194's bayonet mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the SVBONY SV194 adapter have any glass or optics inside?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the SV194 is a purely mechanical adapter. It is a hollow tube designed only to connect the camera to the telescope at the correct distance. It contains no lenses or glass elements, ensuring it does not alter the optical properties of your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SV194 adapter to image the Orion Nebula (M42) with my Nikon DSLR?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The SVBONY SV194 is the key component that allows you to mount your Nikon DSLR to a telescope capable of imaging large targets like the Orion Nebula (M42). By connecting your camera at prime focus, you can use your telescope's full aperture and focal length to capture detailed, long-exposure images of deep-sky objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"prime-focus\" astrophotography mean with the SV194?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePrime-focus means you are using the telescope itself as the camera's lens. You remove the camera's lens and the telescope's eyepiece, and the SV194 adapter connects the camera body directly to the telescope's focuser. The light from the telescope's primary mirror or objective lens comes to a focus directly on your camera's sensor.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSV194\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Mount\u003c\/td\u003e\n\u003ctd\u003eNikon F-Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM42x0.75 T-Thread (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2 Years\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\"\u003eSV194 Photography Adapter for Nikon F-Mount\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 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861268263197,"sku":"SV-W1077A","price":11.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV194-Photography-Adapter-for-Nikon-Camera-w-F-Mount-1-W1077A_4d3fdd43-25ad-4c30-bc7a-a0f9e8f55bb7.jpg?v=1788660886"},{"product_id":"svbony-sa406-eyepiece-adapter-for-sa401-spotting-scope-to-sv230-sv245-125in","title":"SVBONY SA406 Eyepiece Adapter for SA401 Spotting Scope to SV230\/SV245 - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects SA401 Scope to 1.25\" Eyepieces\u003c\/li\u003e\n\u003cli\u003eOptimized for SV230 \u0026amp; SV245 Zoom Eyepieces\u003c\/li\u003e\n\u003cli\u003eDurable All-Metal Construction\u003c\/li\u003e\n\u003cli\u003eEnsures Correct Focus is Maintained\u003c\/li\u003e\n\u003cli\u003eTool-Free Installation\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 SA406 Eyepiece Adapter for SA401 Spotting Scope to SV230\/SV245\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SA406 Eyepiece Adapter connects the SA401 APO Spotting Scope to standard 1.25-inch eyepieces like the SV230 and SV245 zoom models, replacing the stock system with an all-metal interface engineered to maintain perfect focus.\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 1.25-Inch Interface for SV230 \u0026amp; SV245 Eyepieces\u003c\/h3\u003e\n\u003cp\u003eThis adapter unlocks the optical potential of your SA401 APO Spotting Scope by allowing you to use standard 1.25-inch astronomical eyepieces. It is specifically designed to achieve perfect focus with the SVBONY SV230 and SV245 zoom eyepieces. This upgrade path provides access to a wider field of view and sharper observations than the scope's original eyepiece configuration.\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, Tool-Free Mounting\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-precision metal components, the SA406 adapter ensures a rigid, stable connection between your spotting scope and eyepiece. This robust build prevents flexure that can compromise image quality, maintaining optical alignment. The adapter is designed for easy, tool-free installation, allowing for quick changes in the field without hassle.\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 purpose of the SVBONY SA406 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SA406 adapter is designed specifically to connect the SA401 APO Spotting Scope with standard 1.25-inch eyepieces. It is optimized to ensure perfect focus when using the SVBONY SV230 and SV245 zoom eyepiece models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use any 1.25-inch eyepiece with the SA406 adapter on my SA401 scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the adapter provides a standard 1.25-inch interface, it is specifically engineered to achieve the correct focal distance with the \u003cstrong\u003eSVBONY SV230 and SV245 eyepieces\u003c\/strong\u003e. Other 1.25-inch eyepieces may not reach focus and are not guaranteed to be compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the SA406 adapter made of?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SA406 adapter is constructed from high-precision metal components. This ensures long-lasting stability, durability, and a secure connection that maintains the optical alignment of your setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need any tools to install the SA406 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the adapter is designed for quick, tool-free mounting. You can easily attach and detach it in the field, allowing you to switch between eyepiece configurations without needing additional equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill using the SA406 adapter on my SA401 for birdwatching with an SV230 eyepiece improve my view?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. By enabling the use of a zoom eyepiece like the SV230, the SA406 adapter can provide a wider, sharper field of view. This is highly beneficial for applications like birdwatching, where quickly acquiring and tracking a subject is essential.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI use my SA401 spotting scope for target shooting. How does the SA406 help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor target shooting, optical clarity is critical. The SA406 adapter allows you to pair your SA401 scope with higher-quality zoom eyepieces like the SV230 or SV245. This combination can deliver sharper images and the flexibility to zoom in, making it easier to spot impacts at a distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\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":52861284614429,"sku":"SV-W9170A","price":20.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SA406-Eyepiece-Adapter-for-SA401-Spotting-Scope-to-SV230-SV245-1_c7ab0d22-3fe8-4f5b-8345-295e4c85f976.jpg?v=1788661290"},{"product_id":"svbony-sa404-m48-female-to-m42-male-telescope-adapter","title":"SVBONY SA404 M48 Female to M42 Male Telescope Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M42 (T2) accessories to M48 (2\") threaded components\u003c\/li\u003e\n\u003cli\u003eMachined from aluminum alloy to a 0.1mm accuracy\u003c\/li\u003e\n\u003cli\u003eAdds a precise 31.5mm of height to the optical path\u003c\/li\u003e\n\u003cli\u003eLightweight 70g design minimizes load on the focuser\u003c\/li\u003e\n\u003cli\u003eStandard M48x0.75 female and M42 male 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 SA404 M48 to M42 Telescope Adapter\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SA404 M48 to M42 Telescope Adapter provides the essential conversion from a female M48x0.75 thread to a male M42 thread, adding a precise height of 31.5mm to your imaging train. Machined from a solid block of aluminum alloy to an accuracy of 0.1mm and weighing only 70g, the SA404 ensures a rigid, flex-free link between your telescope's corrector and your camera's T-ring.\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\u003e0.1mm Machining Accuracy for a Stable Imaging Train\u003c\/h3\u003e\n\u003cp\u003eIn astrophotography, any tilt or flexure in the optical train can ruin an image by elongating stars. The SA404 is machined to a 0.1mm tolerance to guarantee that your camera sensor remains perfectly parallel to the focal plane. This precision eliminates a common source of image degradation, ensuring round stars across the entire field.\u003c\/p\u003e\n\u003cp\u003eConstructed from black anodized aluminum alloy, the adapter weighs a mere 70g, adding minimal load to your focuser assembly. Its fixed 31.5mm height is a known value that must be factored into your back focus calculations, providing a solid, non-flexing extension to achieve the correct spacing for your field flattener or reducer.\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 primary use for the SVBONY SA404 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SA404 adapter is used to connect accessories with a smaller \u003cstrong\u003eM42 (T2-thread)\u003c\/strong\u003e to components that use a larger \u003cstrong\u003eM48 (2-inch filter thread)\u003c\/strong\u003e. It is commonly used to attach a DSLR camera with an M42 T-ring or a guide camera to a field flattener, reducer, or off-axis guider that has an M48 output thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 0.1mm accuracy of the SA404 benefit my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e0.1mm machining accuracy\u003c\/strong\u003e ensures that the adapter's threads and faces are perfectly square. This prevents tilt in the imaging train, which is critical for achieving sharp, round stars across the entire sensor, especially with fast optical systems or large-format cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the SVBONY SA404 add significant weight to my setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The adapter is made from lightweight aluminum alloy and has a net weight of only \u003cstrong\u003e70g\u003c\/strong\u003e. This minimal weight ensures it will not strain your telescope's focuser or cause issues with balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a field flattener with M48 threads and a DSLR with an M42 T-ring. Will the SA404 connect them?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a perfect use case for the SVBONY SA404. It will thread directly onto the M48 female threads of your flattener, and your M42 T-ring will then thread onto the SA404's male threads. Just be sure that the adapter's \u003cstrong\u003e31.5mm height\u003c\/strong\u003e works with your required back focus distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen imaging the Orion Nebula (M42) with my refractor, why is a secure adapter like the SA404 important?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eImaging a bright target like the Orion Nebula (M42) often involves many long exposures. A secure, precisely machined adapter like the SVBONY SA404 prevents any microscopic shift or tilt between sub-exposures. This mechanical stability is crucial for stacking sharp, high-resolution final images without introducing artifacts from equipment flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the exact thread specifications for the SVBONY SA404?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SA404 features a \u003cstrong\u003efemale M48x0.75 thread\u003c\/strong\u003e on the telescope side and a \u003cstrong\u003emale M42x0.75 thread\u003c\/strong\u003e on the camera\/accessory side. This is the standard for 2-inch filters and T-rings, respectively.\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\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum Alloy\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\u003ctr\u003e\n\u003ctd\u003eTelescope-Side Interface\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory-Side Interface\u003c\/td\u003e\n\u003ctd\u003eM42 Male Thread \/ 1.25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMachining Accuracy\u003c\/td\u003e\n\u003ctd\u003e0.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Path Height\u003c\/td\u003e\n\u003ctd\u003e31.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e54mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e70g\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\"\u003eSA404 M48 to M42 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\u003cli\u003e\n\u003cp\u003eThis product does not require software, drivers, or a 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":52861284679965,"sku":"SV-W9165A","price":16.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SA404-M48-to-M42-Telescope-Adapter-for-Astrophotography-Camera-1_b43c0cec-e125-42ac-af0b-9d64afe613f3.jpg?v=1788661299"},{"product_id":"svbony-sv123-black-metal-extendable-spotting-scope-camera-adapter","title":"SVBONY SV123 Black Metal Extendable Spotting Scope Camera Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects to DSLR cameras via a standard M42x0.75 T-thread\u003c\/li\u003e\n\u003cli\u003eClamps onto spotting scope eyepieces with a 49mm-58mm external diameter\u003c\/li\u003e\n\u003cli\u003eProvides up to 30mm of variable length for focus adjustment\u003c\/li\u003e\n\u003cli\u003eDurable and lightweight Aluminum Alloy 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 SV123 Black Metal Spotting Scope Camera Adapter\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV123 adapter connects your DSLR camera directly to spotting scope eyepieces with a 49mm to 58mm external diameter. It features a standard M42x0.75 male T-thread for secure camera attachment and offers 30mm of variable extension, allowing you to achieve precise focus for high-magnification digiscoping of wildlife or celestial objects.\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\u003eSecurely Couple Your DSLR: The 49mm-58mm Eyepiece Clamp\u003c\/h3\u003e\n\u003cp\u003eThis adapter creates a direct, rigid connection between your camera and spotting scope for eyepiece projection photography. The internal clamp is designed to grip any eyepiece with an outer body diameter between 49mm and 58mm, making it compatible with models like the SVBONY SV46(P) and SV406(P). The robust Aluminum Alloy body ensures your camera remains stable, preventing flexure that can ruin long-exposure shots.\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\u003eAchieve Precise Focus with 30mm of Extension Travel\u003c\/h3\u003e\n\u003cp\u003eThe key to sharp digiscoping is achieving perfect focus, which often requires adjusting the distance between the camera sensor and the eyepiece. The SV123's telescoping design provides up to 30mm of variable tube length. This extension allows you to fine-tune the projection distance, ensuring you can bring the image to a sharp focus across a wide range of cameras and eyepieces.\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 purpose of the SVBONY SV123 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV123 adapter is designed for \u003cstrong\u003edigiscoping\u003c\/strong\u003e, allowing you to connect a DSLR camera to a spotting scope's eyepiece. This turns your spotting scope into a powerful telephoto lens for capturing detailed images of distant subjects like birds, wildlife, or the Moon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich spotting scopes are compatible with the SV123 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV123 is compatible with any spotting scope whose eyepiece has an external body diameter between \u003cstrong\u003e49mm and 58mm\u003c\/strong\u003e. It is specifically mentioned as being compatible with the SVBONY SV46(P) and SV406(P) models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat else do I need to connect my camera to the SVBONY SV123?\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 specific to your camera's lens mount (e.g., Canon EOS, Nikon F, Sony E). The T-Ring screws onto the adapter's M42x0.75 male thread and then bayonets into your camera body just like a lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 30mm extension on the SV123 adapter help my photography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e30mm variable extension\u003c\/strong\u003e allows you to adjust the distance between your camera's sensor and the eyepiece. This is critical for achieving a sharp focus, as different eyepieces and cameras require slightly different spacing to project a clear image onto the sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV123 adapter with my SV46P spotting scope to photograph birds at a distance?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The SVBONY SV123 is an ideal tool for this scenario. By connecting your DSLR to the SV46P scope, you can leverage the scope's high magnification to capture frame-filling, detailed photographs of birds and other wildlife from a non-disruptive distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy spotting scope eyepiece has a diameter of 60mm. Will the SVBONY SV123 adapter fit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the SVBONY SV123 adapter will not fit. Its clamping mechanism is designed for a maximum eyepiece diameter of \u003cstrong\u003e58mm\u003c\/strong\u003e. Attempting to force it onto a larger eyepiece could damage the adapter or the eyepiece.\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\u003eCamera Connection Thread\u003c\/td\u003e\n\u003ctd\u003eM42x0.75 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Eyepiece Diameter\u003c\/td\u003e\n\u003ctd\u003e49mm - 58mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Extension Length\u003c\/td\u003e\n\u003ctd\u003e30mm\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\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 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861284745501,"sku":"SV-F9194A","price":34.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV123-Black-Metal-Spotting-Scope-Camera-Adapter-Extensionable-1_823910c8-a8ec-480a-a3d7-c12c88d80eb9.jpg?v=1788661319"}],"url":"https:\/\/davidastro.com\/collections\/svbony-adapters.oembed","provider":"David Astro","version":"1.0","type":"link"}