{"product_id":"baader-planetarium-protective-t-ring-canon-eos-to-t-2-m48i-with-2-inch-nosepiece","title":"Baader Planetarium Protective T-Ring Canon EOS to T-2\/M48i with 2\" Nosepiece","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Canon EOS DSLR cameras to telescopes\u003c\/li\u003e\n\u003cli\u003eInternal holder for mounting filters\u003c\/li\u003e\n\u003cli\u003eProvides a protective dust seal for the camera sensor\u003c\/li\u003e\n\u003cli\u003eOffers T-2 and M48i female thread connections\u003c\/li\u003e\n\u003cli\u003eIncludes a removable 2\" nosepiece for standard focusers\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\u003eProtective T-Ring Canon EOS to T-2\/M48i with 2\" Nosepiece\u003c\/h2\u003e\n\u003cp\u003eThe Baader Protective T-Ring for Canon EOS cameras adapts your DSLR to any focuser accepting T-2, M48i, or a 2\" nosepiece. The included 2\" nosepiece ensures broad compatibility with most telescopes, while the adapter's core function is to house a filter internally, creating a sealed optical train that protects your camera's sensor from dust.\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\u003eInternal Filter Mounting: Protecting Your Canon EOS Sensor\u003c\/h3\u003e\n\u003cp\u003eUnlike a standard T-ring, the Baader Protective T-Ring features an internal compartment designed to hold a filter. By placing a filter—such as a UV\/IR cut or a light pollution filter—inside the adapter itself, you create a semi-permanent dust seal. This drastically reduces the risk of dust settling on your camera's sensor during an imaging session, which is a common source of artifacts that require correction in post-processing.\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\u003eConnection Versatility: T-2, M48i, and 2\" Nosepiece Options\u003c\/h3\u003e\n\u003cp\u003eThis single adapter provides three distinct methods for connecting your Canon EOS camera to your telescope, ensuring maximum compatibility with your existing equipment. The removable 2\" nosepiece allows for a simple slide-in connection to any standard 2\" focuser or diagonal. For a more secure, threaded connection that eliminates tilt, you can attach the adapter directly via its female T-2 (M42x0.75) or wider M48i (M48x0.75) threads, the latter of which helps minimize vignetting on full-frame sensors.\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 Protective T-Ring vs. Standard T-Rings: A Smarter Connection\u003c\/h3\u003e\n\u003cp\u003eA standard T-ring is a simple mechanical adapter; it connects your camera body to a telescope and nothing more. The Baader Protective T-Ring is an integrated imaging component that solves the problem of dust intrusion and filter placement in a single device.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDust Protection:\u003c\/strong\u003e A standard T-ring leaves your sensor exposed every time you connect it. Baader's design keeps the sensor sealed behind a filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimplified Imaging Train:\u003c\/strong\u003e To use filters with a standard T-ring, you need a separate filter drawer or wheel. This adds length, weight, and cost. The Protective T-Ring integrates this capability directly into the primary camera connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal Filter Placement:\u003c\/strong\u003e Placing the filter close to the sensor inside the T-ring helps maintain a short back focus and can reduce internal reflections compared to placing it further up the optical train.\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 main advantage of the Baader Protective T-Ring over a standard Canon T-ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is its ability to hold a filter internally. This creates a protective barrier that seals your Canon EOS camera's sensor from dust, which is a significant benefit for astrophotography. It also simplifies your imaging train by eliminating the need for a separate filter drawer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the internal filter in the Baader Protective T-Ring help with imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy seating a filter inside the adapter, it acts as a dust seal, preventing particles from landing on your sensor and creating \"dust donuts\" in your final images. This means cleaner raw frames and less time spent on corrective processing. It also allows you to use essential filters like UV\/IR cut or narrowband filters without adding extra accessories to your setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader Protective T-Ring with my full-frame Canon EOS camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The adapter is described as a \"Wide T-Ring\" and includes an M48i thread option. The M48 thread provides a larger clear aperture than the standard T-2 thread, which is specifically designed to reduce vignetting (darkening of the corners) on larger, full-frame sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the Baader Protective T-Ring to a telescope with a 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe most straightforward method is to use the included 2\" nosepiece. Simply thread it onto the M48i side of the T-ring, and then slide the entire assembly into your telescope's 2\" focuser, securing it with the focuser's set screws just like you would with a 2\" eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader Protective T-Ring work for imaging the Andromeda Galaxy (M31) with my Canon DSLR and an 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. You would attach the Protective T-Ring to your Canon camera, likely insert a light pollution or UV\/IR cut filter, and then connect it to the 8\" SCT's visual back. For an SCT, you will typically use the T-2 thread for a secure connection. This setup is ideal for capturing large targets like the Andromeda Galaxy (M31).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the T-2 and M48i threads on the Baader Protective T-Ring used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese are threaded connection standards. \u003cstrong\u003eT-2 (M42x0.75)\u003c\/strong\u003e is a long-standing standard for accessories like off-axis guiders and coma correctors. \u003cstrong\u003eM48i (M48x0.75)\u003c\/strong\u003e is a wider thread used in 2\" filter systems and correctors designed for full-frame cameras to prevent vignetting. Having both provides maximum flexibility for building a secure, tilt-free imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c!-- No specifications provided --\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c!-- No box contents provided --\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":52913134666013,"sku":"BAA-2958550","price":114.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-Protective-T-Ring-Canon-EOS-to-T-2-M48i-with-2-Nosepiece-1_7dddef03-4ee3-4edd-95ec-5b422f1cfbee.jpg?v=1789086578","url":"https:\/\/davidastro.com\/fr-us\/products\/baader-planetarium-protective-t-ring-canon-eos-to-t-2-m48i-with-2-inch-nosepiece","provider":"David Astro","version":"1.0","type":"link"}