{"title":"Baader Filter Wheels","description":"\u003cp\u003eBaader Planetarium uses a filter slider approach rather than a classic rotating wheel. The Universal Filter Changer (UFC) Base sits in the imaging train and accepts interchangeable sliders, so each filter can be swapped in seconds while the camera stays in place.\u003c\/p\u003e\u003cp\u003eSliders are available for 2\" mounted filters, 50mm round unmounted filters and 50mm square filters. The FCCT 1 holder serves the Celestron RASA 8\" and 77mm QHY cameras.\u003c\/p\u003e","products":[{"product_id":"baader-universal-filter-changer-ufc-base","title":"Baader Universal Filter Changer (UFC) Base","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eThe foundational component of the Baader Universal Filter Changer (UFC) system\u003c\/li\u003e\n\u003cli\u003eActs as the central chamber for accepting various UFC filter sliders\u003c\/li\u003e\n\u003cli\u003eFeatures S70 dovetail receptors on both sides for telescope and camera adapters\u003c\/li\u003e\n\u003cli\u003eEnables a fully customizable, low-profile filter solution for any imaging train\u003c\/li\u003e\n\u003cli\u003eDesigned to solve complex adaptation and back-focus challenges\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\u003eBaader Universal Filter Changer (UFC) Base\u003c\/h2\u003e\n\u003cp\u003eThe Baader Universal Filter Changer (UFC) Base is the core chassis of Baader's modular filter system, designed to replace rigid, single-purpose filter wheels with a completely adaptable solution. This unit serves as the primary filter chamber, accepting a wide range of filter sliders and connecting to your telescope and camera via the versatile S70 dovetail system. For imagers with multiple optical tubes or cameras, the UFC Base is the key to creating a standardized, low-profile filter setup that can be reconfigured for any target or hardware combination.\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 UFC Base: A Central Chamber for Any Filter\u003c\/h3\u003e\n\u003cp\u003eAt its heart, the UFC Base is a precisely engineered housing for Baader's family of filter sliders. Instead of rotating filters electronically, you manually insert sliders, a design that minimizes back focus and eliminates the large housings required by traditional filter wheels. This approach allows you to quickly swap between entire sets of filters—like LRGB and narrowband—without disassembling your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBaader S70 Dovetail: Universal Adaptation for Your Gear\u003c\/h3\u003e\n\u003cp\u003eThe true power of the UFC Base lies in its dual S70 dovetail receptors. This Baader-specific standard allows the base to connect to a vast ecosystem of adapters, enabling secure, flexure-free attachment to nearly any piece of equipment. Whether you need to connect to M68, M54, M48, SCT threads, or even a specific camera bayonet, there is a UFC adapter to make it possible, ensuring perfect alignment and spacing.\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\u003eUFC Sliders vs. Filter Wheels: The Flexibility Trade-Off\u003c\/h3\u003e\n\u003cp\u003eChoosing the UFC system over an electronic filter wheel is a conscious decision to prioritize flexibility over automation. A filter wheel is ideal for unattended, sequential imaging of a single target. The UFC system, however, excels where a filter wheel cannot: solving critical back-focus issues, accommodating multiple filter sizes in one system, and adapting a single filter setup across entirely different telescopes and cameras without costly duplication of hardware.\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 Baader UFC Base and why do I need it for the UFC system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eBaader UFC Base\u003c\/strong\u003e is the mandatory central component of the Universal Filter Changer system. It functions as the housing or \"chamber\" that holds the filter sliders. You cannot build a UFC assembly without it, as it provides the S70 dovetail connection points for all telescope- and camera-side adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader UFC Base connect to my telescope and camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UFC Base uses the \u003cstrong\u003eBaader S70 dovetail system\u003c\/strong\u003e on both sides. You must purchase separate UFC adapters to match your specific hardware. For example, you might buy an S70 to 2\" nosepiece adapter for the telescope side and an S70 to M48 adapter for your camera side. This modularity allows it to fit virtually any imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat filter sliders are compatible with the Baader UFC Base?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UFC Base is designed to work with all Baader UFC filter sliders. These are available for various filter types, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMounted 1.25\" filters\u003c\/li\u003e\n\u003cli\u003eMounted 2\" filters\u003c\/li\u003e\n\u003cli\u003eUnmounted 31mm, 36mm, and 50mm filters\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 Baader UFC system a better choice than a filter wheel?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt depends on your needs. A \u003cstrong\u003efilter wheel\u003c\/strong\u003e is better for automated, remote imaging where you need to cycle through filters without manual intervention. The \u003cstrong\u003eUFC system\u003c\/strong\u003e is superior for those who need maximum flexibility, have tight back-focus requirements, use multiple telescopes and cameras, or need to accommodate different filter sizes within one system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I integrate the Baader UFC Base with my Celestron SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo use the UFC Base with a Schmidt-Cassegrain telescope, you would typically select the Baader UFC S70 to 2.9\" SCT thread adapter for the telescope side. For the camera side, you would choose the appropriate adapter for your camera's connection (e.g., M48 or M54), ensuring your total back focus remains within the telescope's optimal distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Baader UFC Base cause vignetting on my fast f\/4 refractor with a full-frame sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UFC system is designed to be as low-profile as possible, but vignetting always depends on the entire optical train. The clear aperture of the S70 system is quite large. To ensure an unvignetted field with a full-frame sensor, especially on a fast instrument, you should use the largest possible filter sliders (e.g., for 50mm unmounted filters) and select adapters that maintain the widest possible light path, like M68-threaded connections if your system supports them.\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 colspan=\"2\" style=\"text-align:center;\"\u003eNo specifications provided.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eS70\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\"\u003eNo items listed in the box.\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\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Universal_Filter_Changer_UFC_Technical_Drawings.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\"\u003eBaader Planetarium Universal Filter Changer UFC Technical Drawings\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\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":44967309279517,"sku":"BAA-2459110","price":85.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-Universal-Filter-Changer-UFC-Base-1__13895.1597110633.1280.1280.jpg?v=1684340384"},{"product_id":"baader-ufc-filter-slider-for-2-mounted-filters","title":"Baader UFC Filter Slider - for 2\" Mounted Filters","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnables use of standard 2\" mounted filters in the UFC system\u003c\/li\u003e\n\u003cli\u003eAllows for rapid, tool-free filter changes\u003c\/li\u003e\n\u003cli\u003eMaintains a consistent optical path for parfocal results\u003c\/li\u003e\n\u003cli\u003eFeatures standard M48 filter threads for secure mounting\u003c\/li\u003e\n\u003cli\u003eDesigned for the Baader Universal Filter Changer (UFC) ecosystem\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\u003eBaader UFC Filter Slider - for 2\" Mounted Filters\u003c\/h2\u003e\n      \u003cp\u003eThe Baader UFC Filter Slider for 2\" Mounted Filters is the essential component for integrating your existing library of standard 2-inch filters into Baader's modular Universal Filter Changer system. This slider allows you to swap filters in seconds without unthreading any part of your imaging train, providing a secure and repeatable solution for manual filter changes. It is engineered to accept any standard 2\" filter with M48 threads, making it a direct fit for the vast majority of astronomical filters on the market.\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 Standard 2\" Filters into the Baader UFC System\u003c\/h3\u003e\n      \u003cp\u003eThis filter slider is the bridge between your collection of 2\" mounted filters and the rigid, adaptable Baader UFC ecosystem. Instead of a bulky filter wheel, the UFC system uses a slim base and interchangeable sliders, and this model is purpose-built for the common 2\" format. By mounting a filter into this slider, you can insert and remove it from the optical path instantly, which is ideal for switching between a light pollution filter and a natural-color filter, or for comparing different narrowband targets.\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\u003eUFC 2\" Slider vs. Other UFC Formats: Choosing the Right Component\u003c\/h3\u003e\n      \u003cp\u003eThe Baader UFC system offers sliders for various filter types, and choosing the correct one is critical. This 2\" mounted slider is designed specifically for observers and imagers who have already invested in standard cell-mounted filters. It provides the lowest-cost entry into the UFC system if you own these filters.\u003c\/p\u003e\n      \u003cp\u003eThis contrasts with other UFC sliders made for unmounted, larger-format filters (e.g., 50mm square), which are typically used in advanced setups with large sensors. If your gear is built around the 2\" standard, this slider is the correct component to ensure compatibility and ease of use within the UFC framework.\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 the Baader UFC 2\" Filter Slider?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe main purpose of the Baader UFC 2\" Filter Slider is to allow you to use standard, cell-mounted 2-inch filters (with M48 threads) within the Baader Universal Filter Changer (UFC) system. It enables quick, tool-free swapping of filters in your imaging train.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my existing 2\" narrowband filters with this UFC Filter Slider?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. This slider is specifically designed for any standard 2\" filter mounted in a cell with M48 threads. This includes virtually all 2\" LRGB, narrowband (H-alpha, OIII, SII), and light pollution filters from major manufacturers.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader UFC Filter Slider install into the UFC Base?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe slider is designed to slide smoothly into the main UFC Base (sold separately) and is held in place securely. This allows you to prepare multiple sliders with different filters and swap them out in the field in just a few seconds without changing focus or camera orientation.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader UFC Filter Slider a replacement for an automated filter wheel?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this is a manual solution. The Baader UFC Filter Slider is designed for deliberate, hands-on filter changes. It is not automated and can only hold one filter at a time. It is an excellent choice for simplicity, light weight, and avoiding the backfocus consumption of a larger electronic filter wheel.\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 SCT, can I quickly swap between an H-alpha and a multi-bandpass filter with this UFC slider?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. This is a perfect use case. You would have one filter slider for your H-alpha filter and a second one for your multi-bandpass filter. You could capture data with one, then simply slide it out and slide the other one in to capture data on the same target without reframing or refocusing.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI have a refractor with a 2\" focuser. Is this Baader UFC 2\" slider all I need to use my filters?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. This slider is a component of the larger Baader UFC system. You will also need the \u003cstrong\u003eUFC Base\u003c\/strong\u003e, as well as telescope-side and camera-side adapters to connect the UFC Base to your specific refractor and camera. This slider fits into that complete system.\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\u003eFilter Compatibility\u003c\/td\u003e\n\u003ctd\u003eStandard 2\" Mounted Filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Thread\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium Universal Filter Changer (UFC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\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\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Universal_Filter_Changer_UFC_Technical_Drawings.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\"\u003eBaader Planetarium Universal Filter Changer UFC Technical Drawings\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\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":44967309574429,"sku":"BAA-2459112","price":66.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-UFC-Filter-Slider-for-2-inch-Mounted-Filters-1__80335.1597110639.1280.1280.jpg?v=1684340323"},{"product_id":"baader-ufc-filter-slider-for-50mm-round-unmounted-filters","title":"Baader UFC Filter Slider - for 50mm Round Unmounted Filters","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for the Baader Universal Filter Changer (UFC) System\u003c\/li\u003e\n\u003cli\u003eSecurely holds one 50mm round unmounted filter\u003c\/li\u003e\n\u003cli\u003eAccepts filter diameters from 50mm to 50.5mm\u003c\/li\u003e\n\u003cli\u003eEnables quick, tool-free filter swaps\u003c\/li\u003e\n\u003cli\u003eMaintains minimal back focus consumption\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\u003eBaader UFC Filter Slider - for 50mm Round Unmounted Filters\u003c\/h2\u003e\n\u003cp\u003eThis Baader UFC Filter Slider is engineered specifically for the Baader Universal Filter Changer (UFC) system, providing a secure, low-profile housing for a single 50mm round unmounted filter. It is designed to accept filters with a diameter from 50mm to 50.5mm, enabling rapid, repeatable filter changes without altering the optical path 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\u003eThe Baader UFC System: A Modular Filtration Platform\u003c\/h3\u003e\n\u003cp\u003eThe Universal Filter Changer is Baader's solution to the problem of integrating filters into complex imaging trains, especially with fast optical systems like Celestron RASA or Starizona HyperStar setups where back focus is minimal. Instead of a bulky filter wheel, the UFC system uses a base plate with a slot for thin, interchangeable filter sliders. This Baader UFC Filter Slider is a core component, allowing you to dedicate one slider to each of your 50mm unmounted filters for maximum efficiency.\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 Mounting for 50mm to 50.5mm Unmounted Filters\u003c\/h3\u003e\n\u003cp\u003eUnmounted 50mm round filters are common in advanced astrophotography, offering a larger clear aperture and lower cost compared to their mounted counterparts. This slider provides a precise, protective housing that secures the filter without stressing the glass. The design accommodates slight variations in filter diameter, accepting filters from 50mm up to 50.5mm, ensuring a snug fit for various manufacturers' products.\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\u003eRapid Filter Changes for Dynamic Imaging\u003c\/h3\u003e\n\u003cp\u003eA key operational advantage of the slider system is the speed of exchange. During an imaging session, you can swap from a luminance filter to an H-alpha filter in seconds by simply ejecting one slider and inserting another. This manual process is faster than many electronic filter wheels and introduces zero additional power or connectivity requirements, simplifying your field setup and troubleshooting.\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\u003eUFC Filter Slider vs. a Filter Wheel: Weight, Speed, and Back Focus\u003c\/h3\u003e\n\u003cp\u003eChoosing between a filter slider and a filter wheel involves clear trade-offs. While a filter wheel offers automation, the UFC slider system excels in specific scenarios.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack Focus:\u003c\/strong\u003e The UFC system is significantly thinner than most filter wheels, making it one of the few viable solutions for systems with extremely limited back focus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight \u0026amp; Balance:\u003c\/strong\u003e A single slider and UFC base is lighter than a motorized wheel, reducing the load on the focuser and making telescope balance easier to achieve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost:\u003c\/strong\u003e A UFC setup with multiple sliders is often more economical than a multi-position electronic filter wheel, especially for imagers who only use a few filters per session.\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 Baader UFC system and why do I need this 50mm Filter Slider?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader Universal Filter Changer (UFC) is a modular system designed to place filters in an optical path with minimal back focus. This \u003cstrong\u003eBaader UFC Filter Slider\u003c\/strong\u003e is the component that holds your filter. You need this specific slider if you use \u003cstrong\u003e50mm round unmounted filters\u003c\/strong\u003e and want to integrate them into your UFC-equipped imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install a 50mm unmounted filter into the Baader UFC Slider?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstalling a filter is straightforward. The slider typically uses a retaining ring or small set screws to hold the unmounted filter in place. You simply place the filter into the recessed circular seat and then secure it with the provided mechanism. This ensures the filter is held firmly and squarely to the optical axis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader UFC Filter Slider suitable for a Celestron RASA 8 imaging setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The Baader UFC system, with sliders like this one for 50mm filters, is one of the most popular filtration solutions for RASA and HyperStar systems. Its extremely thin profile is critical for fitting within the tight back focus constraints of these fast, demanding optical designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use multiple Baader UFC 50mm Filter Sliders during an imaging session?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, that is the intended workflow. Most imagers purchase one slider for each filter they plan to use (e.g., L, R, G, B, Ha, Sii, Oiii). The filters are pre-installed in their respective sliders, allowing you to swap between them in the field in just a few seconds without ever touching the glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader UFC slider work with standard mounted 2\" filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This specific slider is designed \u003cstrong\u003eonly for 50mm round unmounted filters\u003c\/strong\u003e. Mounted 2\" filters have M48 threads and a larger housing that will not fit. Baader makes other UFC sliders specifically for mounted 2\" filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader UFC Filter Slider help when imaging faint targets like the Triangulum Galaxy (M33)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging faint galaxies like M33, you need to capture data through multiple filters (Luminance, Red, Green, Blue, and often H-alpha). The Baader UFC Filter Slider allows you to quickly and reliably switch between these filters with minimal disturbance to the telescope. This ensures all your data channels are captured efficiently and remain parfocal, which is critical for producing a sharp, full-color final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Compatibility\u003c\/td\u003e\n\u003ctd\u003e50mm to 50.5mm Round, Unmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium Universal Filter Changer (UFC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.07\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\"\u003eBaader UFC Filter Slider for 50mm Round Filters\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\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/downloads\/dl\/file\/id\/474\/product\/2972\/ufc_universal_filter_changer_system_overview.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\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Universal_Filter_Changer_UFC_Technical_Drawings.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\"\u003eBaader Planetarium Universal Filter Changer UFC Technical Drawings\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\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":44967309672733,"sku":"BAA-2459113","price":66.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-UFC-Filter-Slider-for-50mm-Round-Unmounted-Filters-1__00829.1597110643.1280.1280.jpg?v=1684340345"},{"product_id":"baader-ufc-filter-slider-for-50mm-square-filters","title":"Baader UFC Filter Slider  - for 50mm Square Filters","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAccommodates one 50x50mm unmounted square filter\u003c\/li\u003e\n\u003cli\u003eDesigned for the Baader Planetarium UFC (Universal Filter Changer) System\u003c\/li\u003e\n\u003cli\u003eEnables quick, tool-free manual filter swaps\u003c\/li\u003e\n\u003cli\u003eLow-profile design minimizes back focus consumption\u003c\/li\u003e\n\u003cli\u003eIdeal for large-format sensors to prevent vignetting\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\u003eBaader UFC Filter Slider - for 50mm Square Filters\u003c\/h2\u003e\n      \u003cp\u003eThe Baader UFC Filter Slider for 50mm square filters is the essential component for integrating professional-grade, unmounted filters into Baader's modular Universal Filter Changer system. It is specifically engineered to securely hold one 50x50mm square filter, providing a straight, unobstructed light path for large-format CMOS and CCD sensors. This design is critical for advanced imagers using fast optical systems, ensuring illumination from corner to corner without the vignetting often introduced by smaller filter formats.\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\u003eSeamless Integration with the Baader UFC System\u003c\/h3\u003e\n      \u003cp\u003eThis filter slider is a core component of the Baader UFC, a fully modular system designed to adapt to nearly any telescope and camera combination. The slider inserts smoothly into any UFC Base, allowing you to swap filters in seconds without disassembling your imaging train. This manual approach is reliable, requires no power, and maintains a rigid, flexure-free connection between your camera and telescope.\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\u003eOptimized for Unmounted 50mm Square Filters\u003c\/h3\u003e\n      \u003cp\u003eThe 50x50mm square filter format is the standard for serious astrophotography with full-frame or larger sensors, offering a clear aperture that prevents clipping the light cone of fast instruments like a RASA or HyperStar system. This slider is precisely machined to hold these unmounted filters securely. Using unmounted filters also helps to minimize the total back focus consumed by your filter assembly, a critical factor in complex imaging trains with reducers or flatteners.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSecure Mounting:\u003c\/strong\u003e Provides a safe and repeatable method for holding delicate, unmounted glass filters in the optical path.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eVignetting Prevention:\u003c\/strong\u003e The large clear aperture is essential for evenly illuminating sensors with large diagonals, from full-frame (35mm) and beyond.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBack Focus Economy:\u003c\/strong\u003e The slim profile of both the unmounted filter and slider preserves precious back focus for other accessories.\u003c\/li\u003e\n      \u003c\/ul\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\u003eRapid, Low-Profile Manual Filter Changes\u003c\/h3\u003e\n      \u003cp\u003eIn the field, speed and simplicity are paramount. The UFC slider system allows you to pre-load multiple sliders with different filters (L, R, G, B, H-alpha, etc.) and exchange them in moments. A magnetic catch ensures the slider clicks firmly into the correct position for imaging, providing tactile feedback that the filter is perfectly centered in the optical path.\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\u003eUFC 50mm Square Slider vs. UFC 2\" Mounted Filter Sliders\u003c\/h3\u003e\n      \u003cp\u003eChoosing the right slider for the Baader UFC system depends entirely on your filter set and sensor size. While both offer the same quick-change convenience, they serve different applications.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCompetitor Advantage (2\" Mounted):\u003c\/strong\u003e Sliders for standard 2\" mounted filters are more convenient for handling, as the filter glass is protected by its metal cell. They are ideal for users with existing sets of 2\" round filters and sensors up to APS-C size.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eThis Slider's Advantage (50mm Square):\u003c\/strong\u003e The 50mm square slider is the superior choice for imaging with full-frame or larger sensors, especially in fast optical systems. The larger clear aperture is non-negotiable for preventing vignetting and ensuring the sensor is fully illuminated. It is the professional standard for wide-field, large-sensor systems.\u003c\/li\u003e\n      \u003c\/ul\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 Baader UFC system and why do I need this 50mm square filter slider?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eBaader Universal Filter Changer (UFC)\u003c\/strong\u003e is a modular system that allows you to place filters in your imaging train. It consists of a main UFC Base and various telescope\/camera adapters. This specific \u003cstrong\u003eUFC Filter Slider\u003c\/strong\u003e is the insert that holds your filter. You need this particular model if you are using professional-grade \u003cstrong\u003e50x50mm unmounted square filters\u003c\/strong\u003e, which are common for imaging with large, full-frame sensors to avoid vignetting.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install an unmounted filter into the Baader UFC slider?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eInstalling an unmounted filter requires careful handling in a clean environment. The slider has a retaining mechanism, typically small screws and a cover plate, that you remove. You then gently place the 50x50mm filter into the recessed seat and re-attach the retainer to hold it securely in place. Always handle unmounted filters by the edges to avoid fingerprints on the optical surfaces.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader UFC 50mm Square Filter Slider a good choice for my Celestron RASA 11 and a full-frame camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, it is the ideal choice. A RASA 11 is an extremely fast (f\/2.2) optical system that produces a large, demanding image circle. To avoid clipping the light cone and causing significant vignetting on a full-frame sensor (like one found in a ZWO ASI6200MM Pro), you need the largest possible clear aperture. The 50mm square filter format provided by this slider is designed specifically for this demanding application.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this slider work with my Chroma 50mm square filters?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. This Baader UFC slider is designed for the industry-standard 50x50mm unmounted filter format. It is fully compatible with 50mm square filters from manufacturers like Chroma, Astrodon, and Antlia, provided they meet the standard thickness specifications for unmounted filters.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the advantages of the Baader UFC slider system over a traditional filter wheel?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe UFC slider system offers several advantages, particularly for manual operation:\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower Profile:\u003c\/strong\u003e It often consumes less back focus than a bulky filter wheel.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCost-Effective:\u003c\/strong\u003e A set of sliders is typically more affordable than a motorized filter wheel.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNo Power Required:\u003c\/strong\u003e It's a simple, reliable mechanical solution, perfect for portable setups.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFlexibility:\u003c\/strong\u003e You can have as many pre-loaded filter sliders as you need, not limited to the 5 or 7 slots of a wheel.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eThe main trade-off is the lack of automation; a filter wheel can be controlled by software for scripted imaging runs.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow many Baader UFC sliders can I use at once?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou can use only \u003cstrong\u003eone filter slider at a time\u003c\/strong\u003e in the Baader UFC Base. The system is designed for quick manual swapping. You would typically purchase multiple sliders, one for each of your filters (e.g., L, R, G, B, Ha), and exchange them in the UFC Base as you change imaging targets or sequences.\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\u003eFilter Compatibility\u003c\/td\u003e\n\u003ctd\u003e50x50mm Unmounted Square Filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium Universal Filter Changer (UFC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.07\u003c\/td\u003e\n\u003c\/tr\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\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eBaader UFC Filter Slider for 50mm Square Filters\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\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_Universal_Filter_Changer_UFC_Technical_Drawings.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\"\u003eBaader Planetarium Universal Filter Changer UFC Technical Drawings\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\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":44967309705501,"sku":"BAA-2459114","price":75.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-UFC-Filter-Slider-for-50mm-Square-Filters-1__84387.1597110648.1280.1280.jpg?v=1684340357"},{"product_id":"baader-planetarium-fcct-1-filter-holder-for-rasa-8-inch-77mm-qhy-cameras","title":"Baader Planetarium FCCT 1 Filter Holder for RASA 8\" \u0026 77mm QHY Cameras","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for the Celestron RASA 8\" Astrograph\u003c\/li\u003e\n\u003cli\u003eEnables filter use in a fast f\/2 optical system\u003c\/li\u003e\n\u003cli\u003eMaintains the RASA's critical back focus distance\u003c\/li\u003e\n\u003cli\u003eCompatible with QHY cameras featuring a 77mm diameter body\u003c\/li\u003e\n\u003cli\u003eSupports models such as the QHY174, QHY163, and QHY183\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\u003eBaader FCCT 1 Filter Holder for RASA 8\" \u0026amp; 77mm QHY Cameras\u003c\/h2\u003e\n\u003cp\u003eThe Baader FCCT 1 provides the definitive filter solution for the Celestron RASA 8\", specifically engineered to integrate 77mm diameter QHY cameras like the QHY174, QHY163, and QHY183. This filter holder works within the RASA 8's demanding optical path, enabling multi-band imaging without compromising the telescope's native f\/2 performance.\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\u003eSeamless Filtration for the RASA 8 Optical System\u003c\/h3\u003e\n\u003cp\u003eThe Celestron RASA 8's aggressive f\/2 optical design leaves no room for a conventional filter wheel, which would violate the system's strict back focus requirements. The Baader FCCT 1 solves this by creating a slim, integrated filter holder that places the filter precisely within the correct optical path. This allows you to capture narrowband or LRGB data without introducing optical aberrations or vignetting caused by improper spacing.\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\u003ePrecision-Fit for 77mm QHY Cameras\u003c\/h3\u003e\n\u003cp\u003eThis FCCT 1 is machined for a direct, secure fit with specific QHY camera bodies that feature a 77mm cylindrical diameter, including popular models like the QHY174, QHY163, and QHY183. This dedicated design ensures perfect optical alignment and mechanical stability, eliminating the potential for tilt and flexure that can degrade images from such a fast astrograph.\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 purpose of the Baader FCCT 1 for the RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader FCCT 1 is a specialized filter holder. It is designed to let you use imaging filters with specific 77mm diameter QHY cameras on a Celestron RASA 8\" astrograph, an instrument that cannot accommodate a standard filter wheel due to its extremely critical back focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich QHY cameras are compatible with this FCCT 1 holder?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis holder is designed for QHY cameras that have a \u003cstrong\u003e77mm diameter cylindrical body\u003c\/strong\u003e. This includes popular models such as the \u003cstrong\u003eQHY174\u003c\/strong\u003e, \u003cstrong\u003eQHY163\u003c\/strong\u003e, and \u003cstrong\u003eQHY183\u003c\/strong\u003e. You should always measure your camera body to confirm its diameter before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy can't I use a standard filter wheel with my RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe RASA 8 has an extremely short and precise back focus distance. A standard filter wheel is too thick and would place the camera sensor far outside the telescope's focal plane, making it impossible to achieve a sharp image across the field. The FCCT 1 is a thin, integrated solution that works within this critical constraint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the FCCT 1 to shoot the Orion Nebula (M42) in narrowband with my RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal application for the FCCT 1. It allows you to insert narrowband filters (like H-alpha or OIII) into the RASA 8's optical path, enabling you to capture high-contrast images of emission nebulae like the Orion Nebula (M42) even from light-polluted locations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I'm imaging the Andromeda Galaxy (M31) with my RASA 8 and QHY183, what does the FCCT 1 allow me to do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe FCCT 1 lets you create a full-color LRGB image of broadband targets like the Andromeda Galaxy (M31). It provides the means to insert and swap Luminance, Red, Green, and Blue filters to capture separate channels, which can then be combined during processing to produce a detailed color photograph.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat size filters does the Baader FCCT 1 accept?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe provided specifications do not list the compatible filter size or type (e.g., mounted or unmounted). This information is crucial for proper operation, and you should confirm the required filter specifications from the manufacturer before purchase.\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\u003eTelescope Compatibility\u003c\/td\u003e\n\u003ctd\u003eCelestron RASA 8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Compatibility\u003c\/td\u003e\n\u003ctd\u003eQHY Cameras with 77mm diameter body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Camera Models\u003c\/td\u003e\n\u003ctd\u003eQHY174, QHY163, QHY183, and others with same body diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e93mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eCamera Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e21.5mm (incl. 2x 0.5mm Spacer wich can be added)\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\"\u003eFCCT I Filter Holder for RASA 8\" and 77mm QHY Cameras\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\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_FCCT_Filter_Changer_Camera_Tilter_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\"\u003eBaader Planetarium FCCT Filter Changer Camera Tilter Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\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":52913140597021,"sku":"BAA-2459070","price":430.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-FCCT-1-for-RASA-8-suitable-for-77mm-QHY-Cameras-e-g-QHY-174-163-183-1_011ef236-4da3-4804-9543-3752863df30c.jpg?v=1789086648"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/baader-filter-wheels.oembed","provider":"David Astro","version":"1.0","type":"link"}