{"product_id":"orion-optics-uk-odk12tr-ms","title":"Orion Optics UK Truss Shroud for 12″ Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 12\" Truss Telescopes\u003c\/li\u003e\n\u003cli\u003eBlocks Stray Light to Maximize Contrast\u003c\/li\u003e\n\u003cli\u003eBreathable Material Manages Airflow\u003c\/li\u003e\n\u003cli\u003ePrevents Internal Tube Currents\u003c\/li\u003e\n\u003cli\u003eFlexible Fit Around Accessories and Dovetails\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\u003eTruss Shroud for 12″ Telescopes\u003c\/h2\u003e\n      \u003cp\u003eThe Truss Shroud for 12″ telescopes is an essential accessory for maximizing image contrast, crafted from a specialized black latex-type material to completely block stray light and manage internal air currents, preserving the optical stability of your 12″ instrument.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eCustom Fit for 12\" Truss Telescopes: Complete Light Blockage\u003c\/h3\u003e\n      \u003cp\u003eStray light from streetlights, the Moon, or even a nearby laptop screen can drastically reduce the contrast of faint deep-sky objects. This shroud uses a highly opaque, black latex-type material to create a dark optical tube, ensuring your mirror's view is shielded from any off-axis light pollution. The fabric is designed to be moved and manipulated, allowing you to create a tight seal around focusers, finders, and dovetail plates for total light control.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eBreathable Design: Defeating Tube Currents for Sharper Views\u003c\/h3\u003e\n      \u003cp\u003eA sealed tube can trap heat, creating a boundary layer of warm air that rises from the primary mirror and degrades image sharpness—a phenomenon known as tube current. This shroud's material is purpose-built to be breathable, allowing air to flow freely and equalize with the ambient temperature. By preventing heat buildup, the shroud helps maintain thermal stability within the optical path, resulting in steadier, more detailed planetary and lunar views.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary purpose of the Truss Shroud for a 12″ telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Truss Shroud for 12\" telescopes serves two critical functions. First, it \u003cstrong\u003eblocks stray ambient light\u003c\/strong\u003e from entering the optical path, which dramatically improves image contrast by darkening the sky background. Second, its breathable material \u003cstrong\u003eprevents the formation of tube currents\u003c\/strong\u003e by allowing air to circulate, which preserves image stability for sharper, high-resolution views.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Truss Shroud help when imaging planets with a 12\" ODK telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor planetary imaging with a high-resolution instrument like a 12\" ODK, image stability is paramount. The shroud's most significant benefit is minimizing tube currents—the shimmering effect caused by heat rising from the mirror. By allowing air to flow, it helps stabilize the image, allowing you to capture finer details in Jupiter's cloud bands or the Cassini Division in Saturn's rings.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the material of the 12\" Truss Shroud?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe shroud is made from a \u003cstrong\u003eblack latex-type material\u003c\/strong\u003e specifically chosen for astronomy. This fabric is both opaque enough to block stray light effectively and breathable enough to allow passive air circulation, preventing the buildup of heat inside the telescope's truss structure.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Truss Shroud fit around my focuser and filter wheel on my 12\" telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The material is designed to be flexible and can be manipulated to fit around most accessory combinations. You can adjust its position to create a snug cover over dovetail plates, focusers, and other equipment attached to the upper cage, ensuring no light leaks compromise your view.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a shroud important for observing faint objects like the Veil Nebula (NGC 6960) with a 12\" truss scope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eObserving faint, extended objects like the Veil Nebula (NGC 6960) is all about contrast. Any stray light will wash out the delicate filamentary structure of the nebula, rendering it invisible. The 12\" Truss Shroud creates a completely dark background, making the faint glow of the nebula stand out against a truly black sky, which is essential for seeing its full extent.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this 12\" Truss Shroud waterproof or intended for dew protection?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this shroud is not designed to be a waterproof or primary dew shield. Its main purpose is controlling light and airflow. While it may offer minimal protection from light dew, it is not a substitute for a dedicated dew shield or a protective cover for your telescope during storage or inclement weather.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVendor SKU\u003c\/td\u003e\n\u003ctd\u003eODK12Tr MS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\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\"\u003eTruss Shroud 12″ Telescope\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/orion-optics-uk-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eOrion Optics UK 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Orion Optics UK","offers":[{"title":"Default Title","offer_id":52942369161501,"sku":"OOUK-ODK12TR-MS","price":1485.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/davidastro.com\/fr\/products\/orion-optics-uk-odk12tr-ms","provider":"David Astro","version":"1.0","type":"link"}