{"product_id":"starizona-filter-slider-blank","title":"Starizona Filter Slider - Filter Blank","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003eCreates a light-proof seal for calibration frames\u003c\/li\u003e\n  \u003cli\u003eStandard M48 x 0.75 filter threads\u003c\/li\u003e\n  \u003cli\u003eDurable anodized aluminum construction\u003c\/li\u003e\n  \u003cli\u003eRaised outer lip for easy handling\u003c\/li\u003e\n  \u003cli\u003eDesigned for the Starizona Filter Slider system\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\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\u003eStarizona Filter Slider - Filter Blank\u003c\/h2\u003e\n          \u003cp\u003eThe Starizona Filter Slider Filter Blank is a simple, essential accessory for astrophotographers, providing a solid, light-blocking disc with standard M48 filter threads. It is designed to function as a manual shutter, allowing you to capture crucial dark and bias calibration frames without introducing stray light.\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 Simple Shutter for M48 Filter Systems\u003c\/h3\u003e\n          \u003cp\u003eThis filter blank is engineered for imagers using CCD cameras that lack a built-in mechanical shutter, such as many popular models from Atik and Starlight Xpress. It threads directly into any M48 x 0.75 filter holder, including the Starizona Filter Slider, occupying a slot just like a standard filter. Once in place, it completely blocks the optical path, enabling the capture of clean, uncontaminated dark frames. The blank is machined from anodized aluminum for durability and features a raised outer lip, making it easy to grip and handle, even with gloves on in the dark.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\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 purpose of the Starizona Filter Blank?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe Starizona Filter Blank is designed to act as a manual shutter. It fits into a filter holder and blocks all light from reaching the camera sensor, which is necessary for taking \u003cstrong\u003edark frames\u003c\/strong\u003e and \u003cstrong\u003ebias frames\u003c\/strong\u003e—two essential types of calibration files for astrophotography.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich cameras benefit from using the Starizona Filter Blank?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThis accessory is most useful for CCD cameras that do not have their own internal mechanical shutter. The manufacturer notes this includes many popular cameras from brands like \u003cstrong\u003eAtik\u003c\/strong\u003e and \u003cstrong\u003eStarlight Xpress\u003c\/strong\u003e.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Starizona Filter Blank attach to an imaging train?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe Filter Blank has standard \u003cstrong\u003eM48 x 0.75 filter threads\u003c\/strong\u003e. It installs into a filter holder, such as the one for the Starizona Filter Slider, in the same way you would install a normal imaging filter.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\n\u003cli\u003e\n    \u003ctable class=\"DAV-specifications\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eThreads\u003c\/td\u003e\n          \u003ctd\u003eM48 x 0.75\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMaterial\u003c\/td\u003e\n          \u003ctd\u003eAnodized Aluminum\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eFunction\u003c\/td\u003e\n          \u003ctd\u003eLight-blocking shutter for calibration frames\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starizona-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarizona Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starizona","offers":[{"title":"Default Title","offer_id":68033923842333,"sku":"STZ-FS-BLANK","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Starizona-Filter-Slider-Filter-Blank-1_90c0a09c-6f7f-476c-9722-175991e88f08.jpg?v=1794375603","url":"https:\/\/davidastro.com\/en-us\/products\/starizona-filter-slider-blank","provider":"David Astro","version":"1.0","type":"link"}