{"product_id":"svbony-sv164-dark-filter-for-ccd-and-cmos-cameras","title":"SVBONY SV164 Dark Filter for CCD and CMOS Cameras","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e2-inch Filter Size\u003c\/li\u003e\n\u003cli\u003eStandard M48x0.75 Threads\u003c\/li\u003e\n\u003cli\u003eEnables Automated Dark Frame Capture\u003c\/li\u003e\n\u003cli\u003e1mm Filter Thickness\u003c\/li\u003e\n\u003cli\u003eDurable Anodized Aluminum Cell\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 SV164 Dark Filter for CCDs Camera 2 inch\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV164 Dark Filter for CCDs Camera 2 inch simplifies calibration by integrating directly into your 2-inch filter wheel or drawer with standard M48x0.75 threads. This 1mm thick filter provides a perfectly opaque surface, allowing you to automate dark frame acquisition without ever touching your telescope cap.\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\u003eAutomated Dark Frames: The 1mm Solution for 2-inch Imaging Trains\u003c\/h3\u003e\n\u003cp\u003eA dark filter is a fundamental tool for serious imagers, enabling the automated capture of dark frames—essential for removing thermal noise from your images. By placing the SV164 in a filter wheel, you can program your acquisition software to capture darks at the end of a session without manual intervention. The standard 1mm thickness helps maintain consistent focus across your filter set.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomated Workflow:\u003c\/strong\u003e Integrate the SV164 into a 2-inch filter wheel and capture dark frames as a seamless part of your imaging sequence, even from a remote observatory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect Opacity:\u003c\/strong\u003e The filter is designed to be completely opaque, ensuring no stray light can contaminate your crucial calibration frames.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 2-inch Format:\u003c\/strong\u003e M48x0.75 threads ensure compatibility with all standard 2-inch filter wheels, filter drawers, and other threaded accessories designed for larger sensors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe SV164 Filter vs. Manual Capping: Repeatable M48x0.75 Integration\u003c\/h3\u003e\n\u003cp\u003eWhile capping your telescope is a free alternative, it introduces variables that a dedicated dark filter eliminates. Manually placing a cap risks bumping the telescope, altering focus or pointing, and can suffer from light leaks. A remote observatory makes manual capping impossible.\u003c\/p\u003e\n\u003cp\u003eThe SVBONY SV164 filter threads securely into your imaging train with its M48x0.75 interface, creating a perfectly light-tight seal every time. This guarantees consistent, high-quality dark frames and enables you to capture them at the correct sensor temperature throughout the night, dramatically improving your final image quality by ensuring your calibration data is a perfect match for your light frames.\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 SV164 Dark Filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV164 is a specialized, completely opaque filter used for taking \u003cstrong\u003edark frames\u003c\/strong\u003e. These are critical calibration files that record the thermal noise generated by your camera's sensor. By subtracting this noise pattern from your light frames (your actual images), you can significantly clean up your final astrophoto.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SV164 2-inch filter improve my astrophotography workflow?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy installing the SV164 in a 2-inch filter wheel or drawer, you can automate the process of taking dark frames. Instead of manually going to your telescope to put the lens cap on at the end of a session, your imaging software can simply switch to the dark filter and begin capturing calibration frames immediately, saving time and effort.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV164 filter for observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The SV164 is a dark frame filter, meaning it is completely opaque and blocks all light. It is a tool for camera calibration only and cannot be used for visual observation or for imaging celestial objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a 2-inch dark filter like the SV164 instead of just a 1.25-inch version?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA 2-inch filter is necessary if you are using a camera with a large sensor (such as APS-C or full-frame) or a 2-inch filter wheel to avoid vignetting. The larger M48x0.75 threads and filter diameter match the rest of your 2-inch imaging train, ensuring the entire sensor is covered.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy imaging sequence for the Andromeda Galaxy (M31) finishes at 3 AM. How does the SV164 filter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith the SV164 in your filter wheel, you can program your software to automatically switch to the dark filter and begin taking dark frames the moment your M31 sequence ends. This means you can be asleep while your rig correctly captures temperature-matched calibration frames, ensuring the highest quality data without any manual effort.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV164 filter compatible with my 2-inch filter wheel?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The SVBONY SV164 uses standard \u003cstrong\u003eM48x0.75 threads\u003c\/strong\u003e and is housed in a standard 2-inch filter cell. It is compatible with virtually all 2-inch filter wheels and filter drawers from brands like ZWO, QHY, Atik, and others.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eDark Frame Imaging Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 (2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e1mm\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\"\u003eSV164 Dark Filter - 2 inch\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":"1.25\" Round Mounted","offer_id":52861236117789,"sku":"SV-W9124A","price":16.0,"currency_code":"CAD","in_stock":true},{"title":"2\" Round Mounted","offer_id":52861236150557,"sku":"SV-W9124B","price":19.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV164-Dark-Filter-for-CCDs-Camera-2-inch-1_16373d27-3d97-46f9-a7cf-700274e2882f.jpg?v=1788660218","url":"https:\/\/davidastro.com\/fr\/products\/svbony-sv164-dark-filter-for-ccd-and-cmos-cameras","provider":"David Astro","version":"1.0","type":"link"}