{"product_id":"orion-optics-uk-secondary-dew-heater-ag12-odk12-carbon-fibre","title":"Orion Optics UK Dew Heater for Sec. 12″","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-fit for 12\" Orion Optics UK telescopes\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for AG12 and ODK12 models\u003c\/li\u003e\n\u003cli\u003eActively prevents dew formation on the secondary mirror\u003c\/li\u003e\n\u003cli\u003eEnsures uninterrupted, high-contrast imaging sessions\u003c\/li\u003e\n\u003cli\u003eIntegrates seamlessly with carbon fibre optical tubes\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\u003eDew Heater for Sec. 12″\u003c\/h2\u003e\n\u003cp\u003eThe Orion Optics UK Dew Heater for Sec. 12″ is the official, purpose-built solution to protect the secondary mirror of your 12″ AG12 or ODK12 carbon fibre telescope from dew, ensuring your hand-figured optics remain clear for uninterrupted imaging sessions.\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\u003eProtect Your 12\" AG12 \u0026amp; ODK12 Optics from Dew\u003c\/h3\u003e\n\u003cp\u003eDew formation on an exposed secondary mirror is one of the most common frustrations in astrophotography, capable of ending a night's imaging by destroying contrast and obscuring faint detail. This dew heater is the definitive solution, engineered by Orion Optics UK specifically for their premium 12\" AG12 and ODK12 astrographs.\u003c\/p\u003e\n\u003cp\u003eUnlike generic, one-size-fits-all solutions, this heater is designed for a perfect fit on the secondary mirror assembly of these specific models. This tailored design ensures even, gentle heating to keep the optical surface just above the dew point without introducing tube currents or interfering with the light path, preserving the exquisite image quality your telescope was built to deliver.\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\"\u003eWhy do I need a specific Orion Optics UK Dew Heater for my 12\" ODK12?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis dew heater is custom-designed for the Orion Optics UK 12\" ODK12 and AG12 models. Generic heaters may not fit the secondary holder correctly, potentially slipping into the light path to cause vignetting or applying heat unevenly. This model guarantees a perfect fit and thermal match for safe, effective dew prevention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this dew heater affect the collimation of my 12\" AG12 Astrograph?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. It is engineered to integrate with the existing secondary mirror holder without altering its position or putting stress on the collimation mechanics. Its precise, lightweight construction avoids any physical interference, ensuring your collimation remains stable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging the Orion Nebula (M42) all night; how does this heater help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLong imaging projects are when dew is most likely to ruin your data. This heater applies gentle, continuous warmth to the secondary, keeping its surface clear even in damp conditions. This ensures your view of M42 remains sharp and high-contrast from your first exposure to your last, preventing a lost night of imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Dew Heater for Sec. 12\" compatible with other telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis heater is specifically designed for the unique secondary mirror assemblies of the Orion Optics UK 12\" AG12 and ODK12 models. It is not guaranteed to fit or function correctly with 12\" telescopes from any other manufacturer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy ODK12 has a carbon fibre tube. Is this heater safe to use with it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This dew heater is engineered for use with the carbon fibre tubes found on the AG12 and ODK12 models. Its design accounts for the specific thermal properties of the telescope's construction materials to provide safe and efficient dew prevention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of this heater over just using a dew shield on my 12\" scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile a dew shield is helpful, it cannot always prevent dew on a secondary mirror that cools rapidly to the ambient temperature, especially during long nights with high humidity. An \u003cstrong\u003eactive heater\u003c\/strong\u003e provides guaranteed protection by keeping the glass temperature safely above the dew point, a more reliable solution for serious astrophotography.\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\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eOrion Optics UK 12\" AG12 \u0026amp; ODK12 Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Component\u003c\/td\u003e\n\u003ctd\u003eSecondary Mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended OTA Material\u003c\/td\u003e\n\u003ctd\u003eCarbon Fibre\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\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":52942370799901,"sku":"OOUK-SECONDARY-DEW-HEATER-AG12-ODK12","price":815.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_a369234b-143c-4d89-9c44-338646f83d1b.jpg?v=1789607089","url":"https:\/\/davidastro.com\/en-us\/products\/orion-optics-uk-secondary-dew-heater-ag12-odk12-carbon-fibre","provider":"David Astro","version":"1.0","type":"link"}