{"product_id":"baader-planetarium-adapter-3-inch-i-to-m68a-for-fli-sbig","title":"Baader Planetarium Adapter 3\"i to M68a – for FLI \/ SBIG","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects devices with a 3\" internal thread to an M68 external thread\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for FLI filter wheels and SBIG STX series cameras\u003c\/li\u003e\n\u003cli\u003eEnables a secure, wide-aperture connection for advanced imaging\u003c\/li\u003e\n\u003cli\u003ePart of the Baader M68 professional threaded connection 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\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\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\u003eAdapter 3\"i to M68a – for FLI \/ SBIG\u003c\/h2\u003e\n      \u003cp\u003eThis Baader Planetarium Adapter 3\"i to M68a is the essential component for integrating large-format FLI filter wheels and SBIG STX cameras into a rigid, M68-threaded optical train. It physically converts the 3\" internal thread found on this specific equipment to the M68 external thread standard, ensuring a secure, wide-aperture connection that prevents both flexure and vignetting in demanding imaging applications.\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\u003eIntegrate 3\" FLI and SBIG Hardware into the M68 System\u003c\/h3\u003e\n      \u003cp\u003eMany high-end imaging setups rely on the robust, large-diameter connections of the Baader M68 system to maintain perfect optical alignment. This adapter is precision-machined to bridge the gap between that system and the proprietary 3\" threaded interface used by select FLI filter wheels (CFW) and SBIG STX CCD cameras. By using this adapter, you can confidently build a fully-threaded imaging train from your corrector or focuser all the way to your camera sensor.\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 primary purpose of the Baader 3\"i to M68a Adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIts sole purpose is to connect specific imaging accessories—namely \u003cstrong\u003eFLI filter wheels\u003c\/strong\u003e and \u003cstrong\u003eSBIG STX series cameras\u003c\/strong\u003e—that use a 3\" internal thread to an optical train that uses the Baader M68 external thread system. It acts as a reducer and thread converter.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do the \"3\"i\" and \"M68a\" designations mean on this adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003e\"3\"i\"\u003c\/strong\u003e refers to the female (internal) 3-inch thread on one side of the adapter, which matches the male thread on the FLI and SBIG devices. \u003cstrong\u003e\"M68a\"\u003c\/strong\u003e refers to the male (external) M68 x 1mm thread on the other side, which connects to the rest of the Baader M68 system.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I use the Baader M68 system with my SBIG STX camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Baader M68 system provides a large, rigid, and fully-threaded connection path that is superior to standard 2\" or T-2 systems. For large-format sensors like those in SBIG STX cameras, the M68 standard helps prevent vignetting (darkening of the corners of the image) and flexure, ensuring a solid and stable imaging train.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Baader adapter compatible with all SBIG or FLI cameras?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, it is not. This adapter is specifically designed for the \u003cstrong\u003e3\" internal thread\u003c\/strong\u003e found on certain FLI Color Filter Wheels (CFW) and SBIG STX series cameras. You must verify that your specific piece of equipment has this exact thread before purchasing.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to connect my FLI filter wheel directly to a telescope's 2\" focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. This adapter terminates in a male M68 thread, not a 2\" nosepiece. To connect to a 2\" focuser, you would need an additional adapter that steps down from the M68 thread to a standard 2\" barrel, such as the Baader M68 to 2\" adapter.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need this adapter if my system is already based on 3\" threads?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIf your entire optical train, from the focuser to the camera, uses a consistent 3\" threaded connection, you likely do not need this adapter. This part is specifically for converting the 3\" thread on the camera or filter wheel to the M68 standard for integration with other M68 components.\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    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_ClickLock_Diagonal_Mirror_2in_M68_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":52913172480285,"sku":"BAA-2458218","price":176.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-Adapter-3-i-to-M68a-for-FLI-SBIG-1_805bbfae-eace-4f1e-a55a-ce5eb281b6c3.jpg?v=1789087124","url":"https:\/\/davidastro.com\/fr-us\/products\/baader-planetarium-adapter-3-inch-i-to-m68a-for-fli-sbig","provider":"David Astro","version":"1.0","type":"link"}