{"product_id":"baader-planetarium-adapter-1-inch-a-c-mount-to-t-2i-incl-uv-ir-cut-filter","title":"Baader Planetarium Adapter 1\"a C-Mount to T-2i – incl. UV\/IR Cut Filter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts C-Mount (1\" x 32 TPI) threads to the T-2 (M42x0.75) system\u003c\/li\u003e\n\u003cli\u003eIntegrates a factory-mounted UV\/IR Cut Filter\u003c\/li\u003e\n\u003cli\u003eProvides a critical link for guide cameras or industrial cameras\u003c\/li\u003e\n\u003cli\u003eEnables correct color balance for sensors without a built-in filter\u003c\/li\u003e\n\u003cli\u003eMaintains a short, rigid connection in the imaging train\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 1\"a C-Mount to T-2i – incl. UV\/IR Cut Filter\u003c\/h2\u003e\n\u003cp\u003eThe Baader C-Mount to T-2 Adapter provides the essential mechanical and optical link for integrating cameras using the 1-inch C-mount standard into the versatile T-2 accessory ecosystem. This adapter includes a pre-installed UV\/IR Cut (Luminance) filter, delivering a complete solution for achieving sharp stars and accurate color balance right out of the box.\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\u003eConnecting C-Mount Cameras to the T-2 System\u003c\/h3\u003e\n\u003cp\u003eThis adapter bridges the gap between two common standards in astronomical imaging. It allows you to securely attach a C-mount camera—often found on planetary, guide, or industrial imaging systems—to any component with a male T-2 (M42x0.75) thread, such as off-axis guiders, filter wheels, or extension tubes from the Baader Astro T-2 System.\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 UV\/IR Cut Filter for Accurate Color\u003c\/h3\u003e\n\u003cp\u003eMany sensitive astronomy cameras lack an integrated filter, leaving them susceptible to unfocused ultraviolet and infrared light that can cause star bloat and unnatural color casts. By mounting a UV\/IR Cut filter directly within the adapter, Baader ensures your camera records only the visible spectrum, resulting in tighter stars and colors that are true to life, a critical step for one-shot-color imaging.\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 main purpose of the Baader C-Mount to T-2i Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to allow a camera with a female C-mount thread (a common standard for video, security, and some guide cameras) to be connected to the widely used T-2 (M42x0.75) thread system for astronomical accessories. The \"i\" in T-2i indicates an internal thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the included UV\/IR Cut filter important for this C-Mount adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost modern CMOS and CCD sensors are highly sensitive to infrared (IR) and ultraviolet (UV) light, which most telescopes cannot focus correctly. The integrated filter blocks these wavelengths, preventing bloated, out-of-focus stars and ensuring correct color balance, especially with refractor telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to connect my C-mount guide camera to a Baader T-2 off-axis guider?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal application. The adapter allows you to rigidly mount your C-mount guide camera onto the T-2 threaded port of an off-axis guider, creating a secure and parfocal guiding setup within the Baader T-2 system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the filter in the Baader C-Mount to T-2i Adapter removable?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UV\/IR Cut filter is factory-mounted and intended to be a permanent part of the adapter. It is not designed for easy removal, as its inclusion is a core feature for ensuring proper imaging results with unfiltered cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter let me attach my C-mount camera to a standard 1.25\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNot by itself. This adapter terminates in a female T-2 thread. To use it in a 1.25\" focuser, you would need to add a separate T-2 to 1.25\" nosepiece accessory, which would thread into the front of this adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between C-Mount and T-2 threads?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThey are two different mechanical standards:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eC-Mount:\u003c\/strong\u003e A 1-inch diameter thread with 32 threads per inch (TPI). It has a flange-to-sensor distance of 17.526 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT-2 (or T-thread):\u003c\/strong\u003e An M42x0.75 metric thread (42mm diameter, 0.75mm pitch). It is a de facto standard for astronomical accessories.\u003c\/li\u003e\n\u003c\/ul\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\u003e0.07\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Adaptable\u003c\/td\u003e\n\u003ctd\u003eC-Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Features\u003c\/td\u003e\n\u003ctd\u003ewith built-in UV\/IR-Cut filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, UNC, Baader Planetarium, Celestron, Other\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eCamera Adapter, Expanding Adapter, Filter holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e22.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003e1\" Thread (C-Mount)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM28.5, M42 x 0.75 (T-2)\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\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.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\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\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\/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":52913133715741,"sku":"BAA-2958520I","price":93.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-Adapter-1-a-C-Mount-to-T-2i-incl-UV-IR-Cut-Filter-1_14e11ad5-49b2-42b3-9f50-35a2c9118d4b.jpg?v=1789086564","url":"https:\/\/davidastro.com\/en-us\/products\/baader-planetarium-adapter-1-inch-a-c-mount-to-t-2i-incl-uv-ir-cut-filter","provider":"David Astro","version":"1.0","type":"link"}