{"product_id":"tele-vue-imaging-system-nosepiece-for-focuser-2-inch","title":"Tele Vue Imaging System Nosepiece for Focuser - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnection to Telescope: 2\" Barrel\u003c\/li\u003e\n\u003cli\u003eConnection to Camera Side: Tele Vue Imaging System Thread\u003c\/li\u003e\n\u003cli\u003eFilter Compatibility: Standard 2\" (48mm) Filter Threads\u003c\/li\u003e\n\u003cli\u003eMaterial: Black Anodized Aluminum\u003c\/li\u003e\n\u003cli\u003eOptical Length: Varies with insertion depth\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\u003eManual\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\u003eThe Foundation for a Rock-Solid Imaging Train\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Imaging System Nosepiece for Focuser - 2\" (RAD-1074) is the essential starting point for building a rigid, high-performance imaging train with your Tele Vue refractor. This component replaces standard slip-fit adapters, providing a secure, threaded connection directly from your telescope's 2-inch focuser to the rest of your Tele Vue imaging accessories. Its purpose is to eliminate potential flexure and tilt, ensuring your camera sensor remains perfectly orthogonal to the optical axis.\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\u003eSecure Threaded Connection for Imaging\u003c\/h3\u003e\n\u003cp\u003eUnlike a standard 2-inch nosepiece that uses set screws and can introduce slight alignment errors, the RAD-1074 threads directly into the next component in your imaging system. This creates a single, rigid column from the focuser to your camera. For imagers, this is critical because it prevents the sag and tilt that can ruin long exposures by causing elongated stars in the corners of the frame.\u003c\/p\u003e\n\u003cp\u003eThis solid connection ensures that once you achieve perfect focus and framing, it stays that way throughout your imaging session. It is the bedrock on which the entire Tele Vue imaging system is built, providing the mechanical stability necessary for capturing sharp, high-resolution data from edge to edge.\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\u003eStandard 2-inch Focuser Interface\u003c\/h3\u003e\n\u003cp\u003eThe telescope side of the adapter is a standard 2-inch barrel, designed for a precise fit into the drawtube of any Tele Vue 2-inch focuser, as well as most other focusers that accept 2-inch accessories. The barrel is machined from high-grade aluminum with a smooth, anodized finish that minimizes wear on your focuser's compression ring. This universal fit makes it the primary connection point for beginning your Tele Vue imaging setup on a wide range of telescopes.\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\u003eMaximized Contrast with Anti-Reflection Control\u003c\/h3\u003e\n\u003cp\u003eImaging faint objects requires meticulous control of stray light. The interior of the RAD-1074 is fully blackened and features anti-reflection threads. These machined baffles trap off-axis light that enters the adapter, preventing it from reflecting off internal surfaces and reaching the camera sensor. The result is a darker background sky in your images, higher contrast on faint nebulosity, and the preservation of delicate detail that might otherwise be washed out.\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\u003eIntegrated 48mm Filter Threads\u003c\/h3\u003e\n\u003cp\u003eAt the front of the nosepiece barrel, you will find standard 48mm female threads. This allows you to mount any 2-inch astronomy filter, such as a light pollution, nebula, or luminance filter, at the very front of your imaging train. Placing the filter here is often ideal as it protects the entire optical train from dust and can help minimize reflections that sometimes occur when filters are placed closer to the sensor.\u003c\/p\u003e\n\u003cp\u003eOne trade-off of this design is that it is intended for a dedicated imaging setup. Because it is threaded, it is not a quick-change part for switching between visual observing and imaging. For observers who frequently swap eyepieces and cameras, a standard slip-fit adapter might offer more convenience, though at the cost of mechanical rigidity.\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 does the Tele Vue Imaging System Nosepiece connect to?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 2-inch barrel side inserts into your telescope's focuser. The other side has a specific thread designed to connect to Tele Vue Imaging System accessories, such as the Canon Wide T-Adapter (CWT-2070) or the Standard T-Ring Adapter (TRG-1072).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy use this threaded nosepiece instead of a standard 2\" prime focus adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA threaded connection is mechanically superior for imaging. It creates a single solid unit with your camera and other accessories, completely eliminating the possibility of tilt or sag that can occur with adapters held by set screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch filters with the RAD-1074?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the front of the barrel (the part that goes into the focuser) is threaded to accept standard 2-inch (48mm) astronomy filters. This is an ideal position for a light pollution or broadband filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this part of achieving the 55mm back focus for my reducer or flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this nosepiece does not have a defined optical length and is not part of the 55mm back focus calculation. Its purpose is solely to adapt the focuser to the Tele Vue Imaging System threads. Back focus is measured from the flange of your specific reducer or flattener.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this work with a non-Tele Vue telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt will work with any telescope that has a standard 2-inch focuser. However, the accessory side is designed specifically for the thread size and spacing of the Tele Vue Imaging System components.\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\u003eProduct Code\u003c\/td\u003e\n\u003ctd\u003eRAD-1074\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003e2\" Barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Connection\u003c\/td\u003e\n\u003ctd\u003eTele Vue Imaging System Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eYes, for 2\" \/ 48mm filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eBlack Anodized Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Baffling\u003c\/td\u003e\n\u003ctd\u003eAnti-reflection threading and blackening\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\"\u003eImaging System Nosepiece for Focuser - 2\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\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\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_NP101is_Operating_Guide.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Imaging System Guide\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/tele-vue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTele Vue 5-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223883710749,"sku":"TV-RAD-1074","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Imaging_Nosepiece_2in_1.jpg?v=1777515024","url":"https:\/\/davidastro.com\/en-int\/products\/tele-vue-imaging-system-nosepiece-for-focuser-2-inch","provider":"David Astro","version":"1.0","type":"link"}