{"product_id":"tele-vue-pmt-4201-t-ring-adapter","title":"Tele Vue PMT-4201 T-Ring Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProduct Code: PMT-4201\u003c\/li\u003e\n\u003cli\u003eConnection Side 1: 4x Powermate (PMT-4201) Female Thread\u003c\/li\u003e\n\u003cli\u003eConnection Side 2: M42x0.75 T-Ring Male Thread\u003c\/li\u003e\n\u003cli\u003eMaterial: Anodized Aluminum\u003c\/li\u003e\n\u003cli\u003eFunction: Couples camera T-Ring to 4x Powermate for imaging\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\u003eSecure Your High-Magnification Planetary Images\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue PMT-4201 T-Ring Adapter is a dedicated accessory designed to provide a solid, direct-threaded connection between your camera's T-Ring and the Tele Vue 4x Powermate imaging amplifier. This adapter eliminates the instability of thumbscrew-based connections, ensuring your camera sensor remains perfectly parallel to the optical axis. This is critical for achieving sharp, high-resolution lunar and planetary images at the long effective focal lengths produced by the 4x Powermate.\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 Rock-Solid Imaging Train for Demanding Focal Lengths\u003c\/h3\u003e\n\u003cp\u003eWhen imaging at the magnifications provided by the 4x Powermate, even the slightest amount of flexure or tilt can ruin an image, blurring fine details in planetary cloud bands or lunar crater walls. The PMT-4201 T-Ring Adapter replaces the standard eyepiece holder on the Powermate, creating a single, rigid metal cylinder from the Powermate to your camera. This threaded connection prevents the camera from sagging or shifting, a common issue with heavier DSLRs or dedicated astronomy cameras that can overwhelm a simple compression ring.\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\u003eEngineered for the 4x Powermate System\u003c\/h3\u003e\n\u003cp\u003eThis is not a generic adapter. The internal female threads are precisely machined to match the lens housing of the Tele Vue 4x Powermate (model PMT-4201), ensuring a secure fit without damaging the Powermate's body. The male threads are the industry-standard M42x0.75 T-thread, providing universal compatibility with any camera-specific T-Ring on the market.\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\u003eSimplified Workflow and Perfect Centering\u003c\/h3\u003e\n\u003cp\u003eBy creating a direct, threaded connection, the PMT-4201 ensures your camera sensor is perfectly centered on the optical axis every time you set up. This eliminates the trial-and-error of centering the camera in a standard visual back. The result is a more efficient imaging workflow and the confidence that your optical train is mechanically sound, allowing you to focus on capturing the best possible data during moments of steady seeing.\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 Critical Note on Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe PMT-4201 T-Ring Adapter is designed exclusively for the 2-inch Tele Vue 4x Powermate. It is not compatible with the 2x Powermate, the 5x Powermate, or any of Tele Vue's Barlow lenses. This specificity ensures a perfect and secure fit for its intended purpose, but it is a critical limitation to be aware of before purchase. For other Powermate models, Tele Vue offers different, dedicated T-Ring adapters.\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\"\u003eWill this adapter work with my Tele Vue 2x Powermate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter (PMT-4201) is specifically threaded for the 2-inch, 4x Powermate only. You will need the PTR-2200 adapter for the 2-inch, 2x Powermate or the PTR-1250 for 1.25-inch Powermates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need besides this adapter to connect my DSLR camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a T-Ring that is specific to your camera's lens mount (e.g., a Canon EOS T-Ring or a Nikon F-mount T-Ring). This adapter connects the T-Ring to the Powermate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter add any magnification or change the spacing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is a purely mechanical adapter. It is designed to hold the camera at the correct position determined by the Powermate's optical design and does not alter the 4x amplification factor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy use this instead of just putting the camera's nosepiece into the Powermate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUsing a nosepiece with a thumbscrew can introduce slight tilt, which is very damaging to image sharpness at high magnifications. This threaded adapter ensures a perfectly rigid and square connection, which is essential for planetary imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter made of plastic or metal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Tele Vue PMT-4201 T-Ring Adapter is machined from black anodized aluminum for durability and a secure, non-slip connection.\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\u003ePTR-4201\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Connection\u003c\/td\u003e\n\u003ctd\u003eFemale thread for 2\" 4x Powermate (PMT-4201)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Connection\u003c\/td\u003e\n\u003ctd\u003eMale M42x0.75 T-Thread\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\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eTele Vue 4x Powermate (2-inch) ONLY\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\"\u003eTele Vue T-Ring Adapter for 4x Powermate\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\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":51223881122077,"sku":"TV-PTR-4201","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_4x_Powermate_T-Ring_Adapter_1.jpg?v=1777515019","url":"https:\/\/davidastro.com\/en-eu\/products\/tele-vue-pmt-4201-t-ring-adapter","provider":"David Astro","version":"1.0","type":"link"}