{"product_id":"baader-planetarium-m54-metal-dustcap-with-m54i-female-thread","title":"Baader Planetarium M54 Metal Dustcap with M54i female thread","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProtects M54 male threads on focusers, correctors, and adapters\u003c\/li\u003e\n\u003cli\u003eDurable all-metal construction\u003c\/li\u003e\n\u003cli\u003eM54i internal (female) thread\u003c\/li\u003e\n\u003cli\u003ePrevents dust and moisture ingress\u003c\/li\u003e\n\u003cli\u003eLow-profile design\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\u003eM54 Metal Dustcap with M54i female thread\u003c\/h2\u003e\n      \u003cp\u003eThe M54 Metal Dustcap provides essential protection for any exposed male M54 thread in your optical train. Machined from solid metal, this cap offers a significant upgrade in durability over standard plastic plugs, ensuring your expensive focusers, field flatteners, or camera adapters are shielded from dust, moisture, and accidental bumps during transport or storage.\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\u003eRobust M54 Protection for Optics and Sensors\u003c\/h3\u003e\n      \u003cp\u003eExposed threads and optical elements are vulnerable points in any imaging setup. This all-metal M54 cap creates a secure, rigid barrier against contaminants and physical damage. Unlike plastic caps that can crack or deform, this metal dustcap ensures the sensitive threads on your equipment remain pristine and your optical train stays sealed and clean.\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\u003ePrecision-Machined M54 Female Thread\u003c\/h3\u003e\n      \u003cp\u003eFeaturing a precisely cut M54 internal (female) thread, this dustcap engages smoothly with the male threads on a wide range of astronomy accessories. The secure fit prevents the cap from vibrating loose during transit, providing reliable protection you can count on. It's an indispensable component for sealing your telescope's focuser drawtube or the front of a corrector when not in use.\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 M54 Metal Dustcap primarily used for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis M54 dustcap is designed to screw onto any exposed male M54 thread to protect it from damage and to seal the optical train from dust and moisture. It is commonly used on telescope focusers, field flatteners, coma correctors, and other adapters that feature an M54 male thread.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this M54 dustcap fit the Baader Steeltrack or Diamond Steeltrack focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, many Baader Steeltrack and Diamond Steeltrack focusers terminate in a male M54 thread. This cap is an ideal accessory for sealing the focuser drawtube when you remove your camera or eyepiece holder, protecting the internal optics and mechanics.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I choose this metal M54 dustcap over a plastic one?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA metal dustcap offers superior durability and protection. \u003cstrong\u003eKey advantages include:\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eImpact Resistance:\u003c\/strong\u003e It provides better protection against accidental bumps that could damage sensitive threads.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Metal will not crack or become brittle over time like plastic can, especially in cold weather.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSecure Fit:\u003c\/strong\u003e The machined threads provide a more secure and reliable seal.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the M54 Metal Dustcap to seal my imaging train for dark frames?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. If the final adapter on your imaging train has a male M54 thread, this cap provides a completely light-proof seal. This makes it an excellent tool for capturing clean, light-leak-free dark frames without having to cover the entire telescope aperture.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"M54i\" in the M54 Metal Dustcap's name mean?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \"i\" in M54i stands for \"internal\" thread, which is another term for a female thread. This indicates that the cap has threads on the inside and is designed to screw *onto* a male-threaded accessory.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this M54 cap compatible with M54x1 threads?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this is a critical distinction. The standard M54 thread in astronomy has a 0.75mm pitch (M54x0.75). This cap uses that standard. It will not fit accessories that use a coarser M54x1 thread pitch. Always verify the thread pitch of your equipment before purchasing.\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\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eM54 Female (Internal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\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\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e59 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eDust cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM54 x 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003c\/li\u003e\n\n\u003cli\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 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":52913159962909,"sku":"BAA-2958700","price":44.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-M54-Metal-Dustcap-with-M54i-female-thread-1_979cf7fd-6ca5-43f2-91c5-142d2eb94ef2.jpg?v=1789086921","url":"https:\/\/davidastro.com\/products\/baader-planetarium-m54-metal-dustcap-with-m54i-female-thread","provider":"David Astro","version":"1.0","type":"link"}