{"product_id":"baader-planetarium-m54-metal-dustcap-with-s54a-ring-dovetail","title":"Baader Planetarium M54 Metal Dustcap with S54a ring dovetail","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eM54 Female Threaded Connection\u003c\/li\u003e\n\u003cli\u003eIntegrated S54a Dovetail Ring\u003c\/li\u003e\n\u003cli\u003eDurable All-Metal Construction\u003c\/li\u003e\n\u003cli\u003eProtects Optics from Dust and Moisture\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\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 S54a ring dovetail\u003c\/h2\u003e\n\u003cp\u003eThe M54 Metal Dustcap provides a rugged, precision-fit seal for any optical component with a male M54 x 0.75 thread. Engineered from metal for superior durability over standard plastic caps, it also features an integrated S54a ring dovetail for a secure, non-threaded connection to compatible Baader Planetarium equipment.\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\u003eRobust M54 Protection with S54a Dovetail Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis dustcap serves a critical dual function for your imaging train. Its primary role is to seal M54 threaded openings, protecting sensitive optics and sensors from dust, debris, and moisture when your equipment is stored or not in use. The all-metal construction ensures it won't crack or deform, providing long-term protection.\u003c\/p\u003e\n\u003cp\u003eBeyond simple protection, the integrated S54a dovetail makes it a true system component. It allows for a quick, secure, and perfectly centered fit on the Baader M54 Quick Change System, ensuring a positive lock that a simple push-fit or threaded cap cannot match. This specificity is also its main limitation; it is designed for the Baader S54a system and is not a universal fit for all M54 ports.\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 function of the M54 Metal Dustcap with S54a dovetail?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary function is to protect optical components with an external M54 thread from dust, moisture, and physical damage. Its durable metal construction offers a higher level of security than standard plastic caps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the S54a dovetail on this M54 dustcap?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe S54a dovetail allows the cap to lock securely and precisely into compatible Baader Planetarium components, such as the M54 Quick Change System. This provides a much more robust and reliable connection than a simple friction-fit or threaded cap, preventing it from being accidentally knocked off.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this M54 dustcap fit any standard M54 threaded accessory?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the internal M54 x 0.75 female threads will fit any corresponding male M54 thread. However, the external S54a dovetail feature is specific to the Baader Planetarium system and will only lock into compatible S54a receptacles.\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 basic 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 a more secure fit. It is not prone to cracking like plastic, provides a better seal against the elements, and is less likely to be damaged by accidental impacts, ensuring better long-term protection for your valuable optical equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does this M54 dustcap close on the Baader M54 Quick Change System?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBaader supplies it as the dustproof closure for the M54 Quick Change System, so it protects the open port from dust when the camera or accessory is removed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this M54 dustcap to seal the front of a Baader MPCC Mark III Coma Corrector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Baader MPCC Mark III has a 2in barrel on the telescope side and T-2 and M48 male threads on the camera side, so it has no S54 dovetail port for this cap. This cap is the dustproof closure for the Baader M54 Quick Change System.\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\u003e0.02\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\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eS54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eM54 System\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\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":52913160126749,"sku":"BAA-2958702","price":43.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-M54-Metal-Dustcap-with-S54a-ring-dovetail-1_1f3aaac3-e6a4-4095-95e4-7a8dbc41c60e.jpg?v=1789086939","url":"https:\/\/davidastro.com\/en-int\/products\/baader-planetarium-m54-metal-dustcap-with-s54a-ring-dovetail","provider":"David Astro","version":"1.0","type":"link"}