{"product_id":"baader-planetarium-adapter-m48a-to-t-2a","title":"Baader Planetarium Adapter M48a to T-2a","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M48 Female and T-2 Female Threaded Components\u003c\/li\u003e\n\u003cli\u003eM48 Male (External) Thread on One Side\u003c\/li\u003e\n\u003cli\u003eT-2 Male (External) Thread on the Other Side\u003c\/li\u003e\n\u003cli\u003eSolves Common Thread Incompatibilities in Optical Trains\u003c\/li\u003e\n\u003cli\u003eAll-Metal Construction for Rigidity\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\u003eAdapter M48a to T-2a\u003c\/h2\u003e\n\u003cp\u003eThe Adapter M48a to T-2a provides a direct, male-to-male connection between the M48 (2-inch filter) thread standard and the smaller T-2 (M42) thread standard. This single component solves a common incompatibility, allowing you to link accessories with female M48 threads, like many coma correctors or field flatteners, directly to equipment with female T-2 threads, such as camera T-rings or off-axis guiders.\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\u003eBridging 2-inch (M48) and T-mount (T-2) Systems\u003c\/h3\u003e\n\u003cp\u003eMany modern optical correctors, such as field flatteners and coma correctors, terminate in a female M48 thread to support a full-frame image circle and prevent vignetting. This adapter allows you to step down from that larger M48 format to the universal T-2 thread used by the vast majority of astronomical cameras, filter wheels, and off-axis guiders, ensuring compatibility across your 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\u003eA Male-to-Male Adapter for Common Imaging Scenarios\u003c\/h3\u003e\n\u003cp\u003eThis adapter features external (male) threads on both the M48 and T-2 sides. It is specifically designed to join two components that both have internal (female) threads, a frequent situation when building a rigid, threaded imaging train. For example, you can securely connect the female M48 output of a reducer directly to the female T-2 input of your camera's T-ring assembly.\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 use for the Adapter M48a to T-2a?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary use is to connect an astronomy component that has a \u003cstrong\u003efemale M48 (2-inch) thread\u003c\/strong\u003e to another component that has a \u003cstrong\u003efemale T-2 (M42) thread\u003c\/strong\u003e. It functions as a step-down adapter with male threads on both sides, creating a secure, threaded connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a coma corrector with a female M48 thread and a ZWO camera with a female T-2 thread. Is the Adapter M48a to T-2a the right part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal application for this adapter. The male M48 thread will screw into your coma corrector, and the male T-2 thread will attach to your camera's T-ring or associated spacers, creating the solid link you need for imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Adapter M48a to T-2a add significant length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile any adapter adds some optical length, this component is designed to be as low-profile as possible to minimize its impact on your back focus distance. It is intended as a simple thread converter, not a significant extension tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Adapter M48a to T-2a to attach my 2\" field flattener to my Canon DSLR T-ring for imaging the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a primary use case. If your field flattener terminates in a standard female M48 thread and your Canon T-ring has the standard female T-2 thread, this adapter will bridge the two components securely for your imaging session of M31.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do \"M48a\" and \"T-2a\" mean in the name Adapter M48a to T-2a?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \"a\" in the name refers to the German word \"außen,\" which means \"external.\" This indicates that the adapter has \u003cstrong\u003eexternal (male) threads\u003c\/strong\u003e on both its M48 side and its T-2 side.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter threaded for 2-inch filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe M48 side of the adapter uses the same thread pitch as a standard 2-inch filter. However, because it is a \u003cstrong\u003emale thread\u003c\/strong\u003e, you cannot screw a filter directly into it. It is designed to screw into a component that has female M48 threads, like the body of a field flattener or corrector.\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\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e49\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eReducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e0.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eT-2 System, M48 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\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStandard Manufacturer's Warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":52913158488349,"sku":"BAA-2958554","price":44.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-Adapter-M48a-to-T-2a-1_7784f3dd-5cc3-4fa6-affc-a3322d952f48.jpg?v=1789086886","url":"https:\/\/davidastro.com\/products\/baader-planetarium-adapter-m48a-to-t-2a","provider":"David Astro","version":"1.0","type":"link"}