{"product_id":"baader-planetarium-filter-crown-tool-for-baader-filters","title":"Baader Planetarium Filter Crown Tool for Baader Filters","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSafely Removes Stuck Baader Filters – Versions for 1.25\" \u0026amp; 2\" Filters\u003c\/li\u003e\n\u003cli\u003eEngages with Baader's Proprietary \"Filter Crown\" Notch\u003c\/li\u003e\n\u003cli\u003ePrevents Deformation of Thin-Walled Filter Cells\u003c\/li\u003e\n\u003cli\u003eIdeal for Tight Spaces like Filter Wheels and Herschel Wedges\u003c\/li\u003e\n\u003cli\u003eAvoids Fingerprints on Optical Surfaces\u003c\/li\u003e\n\u003cli\u003e3D-Printed 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\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\u003eFilter Crown Tool for Baader Filters\u003c\/h2\u003e\n\u003cp\u003eThe Baader Filter Crown Tool is engineered specifically for modern Baader filters, engaging with their unique milled grip crown to prevent damage during removal, and is available in versions for 1.25\" and 2\" filters. This 3D-printed tool provides even, distributed pressure for extracting tightly fitted filters from changers or Herschel wedges without deforming the thin-walled cells.\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\u003eSolving the Stuck Filter Problem: Safely Removing Baader Filters\u003c\/h3\u003e\n\u003cp\u003eModern Baader filter cells are intentionally thin-walled to maximize the clear aperture. When a filter is screwed in tightly or located in a hard-to-reach spot like a filter wheel, gripping it with two fingers can easily deform the cell, causing it to jam even more severely. The Filter Crown Tool solves this by gripping the entire filter frame, distributing the pressure evenly so the cell cannot be distorted.\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\u003eEngaging the Baader \"Filter Crown\" on LPFC \u0026amp; ULP Cells\u003c\/h3\u003e\n\u003cp\u003eThis tool's effectiveness comes from its precise interaction with the \"filter crown\"—a series of milled notches unique to modern Baader 1.25\" and 2\" filter cells. The tool's prongs lock into these notches, providing a secure, tension-free grip that a simple friction wrench cannot match.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned For Baader:\u003c\/strong\u003e Each version is only compatible with Baader filters of its size (1.25\" or 2\") that feature the Low Profile (LPFC) or Ultra Low Profile (ULP) Filter Cell design with the grip crown.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExplicit Incompatibility:\u003c\/strong\u003e It is not suitable for older Baader filters that lack the crown, nor will it work with filters from any other manufacturer.\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\u003eA 3D-Printed Tool for Fingerprint-Free Handling\u003c\/h3\u003e\n\u003cp\u003eBy using this tool, you gain a much better grip to twist a filter out without ever needing to touch the optical surface, eliminating the risk of accidental fingerprints. The tool is produced via 3D printing, and for those who own a 3D printer, Baader makes the print file available for download separately.\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\"\u003eWhy do I need the Baader Filter Crown Tool for my filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need the \u003cstrong\u003eBaader Filter Crown Tool\u003c\/strong\u003e if you use modern 1.25\" or 2\" Baader filters in tight spaces like filter wheels or diagonals. Their thin-walled cells can deform and jam if twisted with finger pressure alone. This tool provides even pressure to prevent damage and ensure easy removal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Baader Filter Crown Tool work with my non-Baader filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The tool is specifically designed to engage with the proprietary \u003cstrong\u003e\"filter crown\" notches\u003c\/strong\u003e milled into modern Baader filter cells (LPFC and ULP types). It is not compatible with filters from other manufacturers that lack this feature.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Filter Crown Tool prevent my Baader filter from getting stuck?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eFilter Crown Tool\u003c\/strong\u003e prevents jamming by distributing rotational force across the entire filter frame instead of concentrating it at two finger points. This stops the thin metal cell from deforming under pressure, which is the primary cause of a filter jamming in its threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy Baader filter is stuck in my filter wheel; which Crown Tool version do I need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eChoose the version that matches your filter: the \u003cstrong\u003e1.25\" Filter Crown Tool\u003c\/strong\u003e for 1.25\" Baader filters, or the \u003cstrong\u003e2\" Filter Crown Tool\u003c\/strong\u003e for 2\" Baader filters. A stuck filter in a wheel is precisely the scenario the tool was designed for: it allows you to get a firm, even grip on a filter that is difficult to access, enabling you to unscrew it without damaging the filter cell.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have older Baader filters. Is the Crown Tool compatible with them?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCompatibility is not guaranteed for older filters. The \u003cstrong\u003eFilter Crown Tool\u003c\/strong\u003e is designed for modern Baader 1.25\" and 2\" filters featuring the \u003cstrong\u003eLPFC (Low Profile Filter Cell)\u003c\/strong\u003e or \u003cstrong\u003eULP (Ultra Low Profile)\u003c\/strong\u003e design, which includes the milled grip crown. Older versions without this feature are not compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm trying to swap a filter inside my Baader Herschel Wedge and it's tight. Will this tool help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The rotation mechanism of a Herschel Wedge is another common place where a filter can be hard to reach and remove. The \u003cstrong\u003eBaader Filter Crown Tool\u003c\/strong\u003e provides the leverage and grip needed to easily swap filters in such a device without frustration or risk of fingerprints.\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\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter mounted\u003c\/td\u003e\n\u003ctd\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e1.25\" Filters\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eModern Baader Filters with LPFC or ULP Cells (Grip Crown)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngagement\u003c\/td\u003e\n\u003ctd\u003eMilled \"Filter Crown\" Notches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003e3D-Printed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNot Compatible With\u003c\/td\u003e\n\u003ctd\u003eNon-Baader Filters; Older Baader Filters without Grip Crown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e2\" Filters\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eCurrent Baader Filters with LPFC or ULP Cells (Grip Crown)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngagement\u003c\/td\u003e\n\u003ctd\u003eMilled \"Filter Crown\" Notches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3D Print File\u003c\/td\u003e\n\u003ctd\u003eAvailable from Baader\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNot Compatible With\u003c\/td\u003e\n\u003ctd\u003eNon-Baader Filters; Older Baader Filters without Grip Crown\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\"\u003eFilter Crown Tool for Baader Filters (selected size)\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\/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":"1.25\" Filters","offer_id":52913209835805,"sku":"BAA-2458134","price":40.0,"currency_code":"USD","in_stock":true},{"title":"2\" Filters","offer_id":52913209868573,"sku":"BAA-2458135","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-Filter-Crown-Tool-for-1-Baader-filters-1_808e74c7-0d91-4526-88a9-c89d8a9754d9.jpg?v=1789088189","url":"https:\/\/davidastro.com\/fr-us\/products\/baader-planetarium-filter-crown-tool-for-baader-filters","provider":"David Astro","version":"1.0","type":"link"}