{"title":"Accessoires anti-rosée Orion Optics UK","description":"\u003cp\u003eLes accessoires anti-rosée Orion Optics UK gardent les miroirs secondaires et les optiques avant libres de rosée pendant les longues sessions. La gamme comprend des résistances chauffantes pour secondaires de 10\", 12\", 14\", 16\", 18\", 20\" et 24\", des résistances carbone pour AG14\/ODK14, AG16\/ODK16 et les grands ODK, ainsi que des pare-buée en fibre de carbone pour l'AG8 et l'OMC-200.\u003c\/p\u003e\u003cp\u003eLe chauffage du secondaire compte surtout sur les tubes serruriers ouverts, où il se couvre de rosée en premier.\u003c\/p\u003e","products":[{"product_id":"orion-optics-uk-ag8-matching-carbon-fibre-dew-shield","title":"Orion Optics UK AG8 matching Carbon Fibre Dew Shield","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCarbon fibre construction\u003c\/li\u003e\n\u003cli\u003eSlides directly onto the AG8 tube\u003c\/li\u003e\n\u003cli\u003eReduces dew formation and stray light\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\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\u003eAG8 Matching Carbon Fibre Dew Shield\u003c\/h2\u003e\n\u003cp\u003eA matching carbon fibre dew shield for the AG8 astrograph, extending the tube to reduce dew formation and stray light on the primary mirror.\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\u003eProtects the Primary Mirror\u003c\/h3\u003e\n\u003cp\u003eExtends the optical path ahead of the primary mirror, shielding it from dew formation and stray light from outside the field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\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\u003eFits\u003c\/td\u003e\n\u003ctd\u003eAG8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAG8 Carbon Fibre Dew Shield\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\/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":52942359331101,"sku":"OOUK-AG8-MATCHING-CARBON-FIBRE-DEW","price":660.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_dd2a24b7-62b3-4d19-8f19-747d239d9206.jpg?v=1789606577"},{"product_id":"orion-optics-uk-tube-dew-heater-ag10-odk10-carbon-fibre","title":"Orion Optics UK Carbon Dew Heater for AG10\/ODK10","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-designed for Orion Optics UK AG10 \u0026amp; ODK10 telescopes\u003c\/li\u003e\n\u003cli\u003eLightweight and rigid carbon fibre construction\u003c\/li\u003e\n\u003cli\u003eActively prevents dew formation on primary mirrors and corrector plates\u003c\/li\u003e\n\u003cli\u003eEnsures optical clarity through long, humid imaging sessions\u003c\/li\u003e\n\u003cli\u003eMatches the premium finish of OOUK carbon fibre 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\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\u003eCarbon Dew Heater for AG10\/ODK10\u003c\/h2\u003e\n\u003cp\u003eProtect your investment and eliminate dew-related image degradation with the Orion Optics UK Carbon Dew Heater, custom-engineered for the AG10 and ODK10 astrographs. This essential accessory ensures your high-performance optics remain clear and dry from dusk until dawn, preventing the subtle contrast loss and eventual image failure caused by condensation on critical optical surfaces.\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\u003eCustom-Fit Dew Prevention for AG10 \u0026amp; ODK10 Astrographs\u003c\/h3\u003e\n\u003cp\u003eA standard dew strap is a poor match for a premium instrument. This heater is specifically designed to fit the tube assembly of the Orion Optics UK AG10 and ODK10, providing uniform, gentle heat right where it's needed. Its rigid carbon fibre construction is not only incredibly lightweight but also perfectly complements the materials and aesthetics of your telescope.\u003c\/p\u003e\n\u003cp\u003eBy applying controlled warmth, the heater keeps the surface temperature of your primary mirror or corrector plate just above the dew point. This active prevention is the only reliable way to guarantee a full night of imaging, safeguarding your session against falling temperatures and rising humidity that can stop an unprotected telescope in its tracks.\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 dew heater for my Orion Optics UK AG10?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Orion Optics UK Carbon Dew Heater is custom-formed to match the diameter and thermal properties of the AG10 and ODK10 optical tubes. Unlike generic fabric straps, this ensures efficient, even heating without slippage or gaps. This is critical for high-resolution imaging, where any uneven heating could cause minor thermal currents that affect seeing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the carbon fibre construction of this AG10\/ODK10 dew heater help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eCarbon fibre\u003c\/strong\u003e offers two main advantages. First, it is extremely lightweight and rigid, adding minimal weight and flexure to the front of your optical tube, which is crucial for maintaining precise balance. Second, it is a stable material that perfectly matches the aesthetic and build quality of Orion Optics UK's premium carbon fibre telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a separate controller for the Carbon Dew Heater for AG10\/ODK10?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This is a heating element and requires a dual-channel or multi-channel dew heater controller to power it and regulate the heat output. Using a controller allows you to apply only the minimal power needed to prevent dew, which saves battery life and avoids introducing excess heat into the optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the OOUK Carbon Dew Heater on my AG10 for an all-night session imaging the Eagle Nebula (M16)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This is exactly the scenario the heater is designed for. An all-night imaging session, especially during humid summer months when M16 is high in the sky, is when dew is most likely to form. The heater will keep your optics clear, ensuring consistent data collection from the beginning of your session to the end.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill using this dew heater on my ODK10 affect image quality when observing planets like Saturn?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen used with a proper dew controller, it will not negatively affect image quality; in fact, it preserves it. The goal is to apply just enough heat (typically a few degrees above ambient) to prevent dew. This low level of warmth prevents the formation of tube currents that could degrade high-magnification planetary views. Observing without a heater on a dewy night would result in a complete loss of contrast and detail.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Carbon Dew Heater for AG10\/ODK10 attach to the telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater is designed as a rigid ring or collar that fits securely around the front of the telescope tube. It typically attaches via a simple and secure method like a small clasp or tension fit, ensuring a solid connection that won't shift as the telescope slews across the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\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":52942369849629,"sku":"OOUK-TUBE-DEW-HEATER-AG10-ODK10","price":664.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_7005aff5-391b-4d40-94ed-512c0c2e0adf.jpg?v=1789607024"},{"product_id":"orion-optics-uk-tube-dew-heater-ag12-odk12-carbon-fibre","title":"Orion Optics UK Carbon Dew Heater for AG12\/ODK12","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-designed for Orion Optics UK AG12 and ODK12 astrographs\u003c\/li\u003e\n\u003cli\u003eLightweight, rigid carbon fibre construction\u003c\/li\u003e\n\u003cli\u003eProvides even heat distribution to prevent dew formation\u003c\/li\u003e\n\u003cli\u003ePreserves optical performance during long, humid imaging sessions\u003c\/li\u003e\n\u003cli\u003eEssential for protecting high-grade telescope optics\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\u003eOrion Optics UK Carbon Dew Heater for AG12\/ODK12\u003c\/h2\u003e\n\u003cp\u003eProtect your investment in world-class optics with the Orion Optics UK Carbon Dew Heater, specifically engineered for the AG12 and ODK12 astrographs. This essential accessory ensures your imaging sessions are not cut short by dew, maintaining the exceptional contrast and resolution your telescope was designed to deliver, even on the most humid nights.\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\u003eProtecting AG12 \u0026amp; ODK12 Optics from Dew\u003c\/h3\u003e\n\u003cp\u003eThe open-tube design of the AG12 and ODK12 astrographs, while excellent for rapid thermal acclimation, makes them susceptible to dew formation on the secondary and primary mirrors. Even a thin layer of moisture can scatter light, drastically reducing contrast and ending a night of imaging. This heater gently warms the telescope's main tube, keeping the optical surfaces just above the dew point without introducing tube currents.\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\u003eCustom-Fit Carbon Fibre Construction\u003c\/h3\u003e\n\u003cp\u003eUnlike generic dew straps, this heater is built from carbon fibre to match the construction and thermal properties of your Orion Optics UK telescope. Its rigid, custom-fit design ensures a perfect placement on the main tube for efficient and uniform heat transfer. The lightweight construction adds minimal weight to the optical tube assembly, preserving the fine balance critical for precise tracking and guiding.\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 dew heater for my Orion Optics UK AG12 or ODK12?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Orion Optics UK Carbon Dew Heater is custom-built to fit the exact diameter and thermal profile of the AG12 and ODK12 carbon fibre tubes. This ensures optimal heat transfer and a secure fit that won't slip or require constant adjustment, unlike generic, flexible dew straps that may not provide even heating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Carbon Dew Heater help maintain image quality on my ODK12 during a long, humid imaging session of the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eDuring a multi-hour exposure of a bright target like the Orion Nebula (M42), any dew formation will create halos around stars and wash out faint nebulosity. By keeping the optics clear, this heater ensures that your telescope maintains its high-contrast performance from the first sub-exposure to the last, preserving the fine details in the Trapezium and the faint outer gas clouds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhere is this Carbon Dew Heater placed on the AG12\/ODK12 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is a tube dew heater designed to wrap around the main body of the optical tube. For most effective dew prevention on both the primary and secondary mirrors, it is typically placed around the upper section of the tube, closer to the secondary mirror assembly, gently warming the air inside the tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy observatory has high humidity. Is the Orion Optics UK Carbon Dew Heater essential for my AG12 to prevent dew from ending a night imaging a target like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, in high-humidity locations, it is an essential tool. An imaging run on the Andromeda Galaxy (M31) requires hours of clear skies. This heater provides the insurance that your optics will remain dew-free throughout the night, preventing the gradual loss of signal and contrast that would otherwise ruin a long imaging project as the temperature drops.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of dew controller do I need for this Orion Optics UK heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis dew heater requires an external dew controller to regulate the power output. While specific power requirements are not listed, it will connect to most standard astronomy dew controller systems that use RCA-style plugs. A controller allows you to apply just enough power to prevent dew without overheating the optics, which is critical for maintaining stable focus and avoiding tube currents.\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 optical performance of my AG12 astrograph?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen used with a proper dew controller, it will not negatively affect optical performance. Its purpose is to apply minimal, gentle heat to stay just above the dew point. This prevents the formation of tube currents that can degrade seeing, ensuring that the only impact on your images is the preservation of contrast and sharpness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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":52942369947933,"sku":"OOUK-TUBE-DEW-HEATER-AG12-ODK12","price":767.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_f27debc9-1569-4df9-9a1e-f023c4265b29.jpg?v=1789607032"},{"product_id":"orion-optics-uk-tube-dew-heater-ag14-odk14-carbon-fibre","title":"Orion Optics UK Carbon Dew Heater for AG14\/ODK14","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-fit for Orion Optics UK AG14 and ODK14 astrographs\u003c\/li\u003e\n\u003cli\u003eRigid carbon fiber construction for durability and efficiency\u003c\/li\u003e\n\u003cli\u003eEnsures uniform heat distribution to prevent optical dewing\u003c\/li\u003e\n\u003cli\u003eMaintains thermal stability for long-exposure imaging\u003c\/li\u003e\n\u003cli\u003eA seamless, integrated alternative to flexible dew straps\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\u003eCarbon Dew Heater for AG14\/ODK14\u003c\/h2\u003e\n\u003cp\u003eThe Orion Optics UK Carbon Dew Heater is engineered as a bespoke solution for the AG14 and ODK14 astrographs, providing a rigid, custom-fit shield against dew. Its carbon fiber body ensures efficient, uniform heat distribution across the optical tube, protecting your primary mirror and corrector plate during critical all-night imaging sessions. This heater integrates perfectly with the telescope's design, offering a more robust and effective alternative to generic fabric dew straps.\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\u003eTailored Dew Prevention for AG14 \u0026amp; ODK14 Astrographs\u003c\/h3\u003e\n\u003cp\u003eStandard dew straps can be inefficient on large, fast optical systems like the AG14 and ODK14, often leaving cool spots or failing to heat the tube mass evenly. This custom-designed heater is molded to the exact diameter of these telescopes, ensuring complete contact and eliminating the gaps that compromise the effectiveness of flexible straps. By maintaining the front optics just above the dew point, it preserves the high-contrast views and photographic resolution these instruments are built to deliver.\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\u003eCarbon Fiber Construction for Uniform Heating\u003c\/h3\u003e\n\u003cp\u003eConstructed from carbon fiber, this dew heater is not only lightweight and durable but also an excellent material for thermal management. Unlike fabric heaters that can develop hot spots directly over the heating elements, the rigid carbon fiber band distributes warmth evenly around the circumference of the tube. This gentle, uniform heating prevents localized tube currents and protects the optical figure of your corrector or primary mirror from thermal stress.\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\u003eCarbon Dew Heater vs. Generic Fabric Straps: A Superior Fit\u003c\/h3\u003e\n\u003cp\u003eWhile generic dew straps offer flexibility, a dedicated heater provides a superior solution for a specific instrument. The Orion Optics UK Carbon Dew Heater is an integrated component, not just an accessory.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit and Contact:\u003c\/strong\u003e The rigid carbon heater provides 100% surface contact for even heat transfer, whereas fabric straps can sag or create air gaps, leading to uneven heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Carbon fiber offers exceptional rigidity and resistance to wear, outlasting fabric and Velcro straps that can degrade with exposure to moisture and UV light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Efficiency:\u003c\/strong\u003e Its precise fit and material properties mean less energy is wasted, allowing your dew controller to work more efficiently and preserving battery life in the field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAesthetics:\u003c\/strong\u003e The carbon fiber finish seamlessly matches the high-end construction of the AG14 and ODK14 telescopes, maintaining the instrument's professional appearance.\u003c\/li\u003e\n\u003c\/ul\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 Carbon Dew Heater for my AG14\/ODK14?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA generic dew strap may not provide the even, consistent heating required by the large-aperture optics of an AG14 or ODK14. This \u003cstrong\u003eOrion Optics UK Carbon Dew Heater\u003c\/strong\u003e is custom-molded to the exact diameter of the optical tube, ensuring complete surface contact and eliminating the cool spots that can still lead to dew formation with a poorly fitting strap.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the carbon fiber construction of this dew heater improve its function?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eCarbon fiber\u003c\/strong\u003e is rigid, lightweight, and distributes heat very evenly. Unlike fabric straps which concentrate heat along wires, this heater warms the entire band, providing gentle and uniform warmth. This prevents localized hot spots that can create tube currents and degrade image quality, while also being more durable than a standard fabric heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Orion Optics UK dew heater prevent dew on both the primary and secondary\/corrector optics of my ODK14?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. By gently warming the upper section of the main tube, the heater keeps the surface of the corrector plate and secondary mirror assembly above the dew point. This is the most critical area for dew formation on a Dall-Kirkham or astrograph design, and this heater is placed specifically to protect those exposed optical surfaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this Carbon Dew Heater require a separate dew controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This is a passive heating element and must be connected to a \u003cstrong\u003edew heater controller\u003c\/strong\u003e (sold separately). A controller allows you to regulate the power output, providing just enough heat to prevent dew without introducing unnecessary heat into the optical path, which is essential for high-resolution imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI image all night with my AG14 from a dewy field. Is this heater robust enough for continuous use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The \u003cstrong\u003eCarbon Dew Heater\u003c\/strong\u003e is designed for exactly this scenario. Its rigid carbon fiber construction is more resistant to moisture, wear, and tear than fabric-and-velcro alternatives, making it an ideal permanent or semi-permanent installation for a remote or backyard observatory setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the installation of the Carbon Dew Heater permanent on an AG14 or ODK14?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater is designed for a snug, secure fit that can be left on the telescope semi-permanently for convenience. However, it is not a permanent modification and can be easily removed if you need to transport the telescope or store it in a tight-fitting case. Its secure fit ensures it will not slip or move during a long imaging session.\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 AG14 and ODK14 Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCarbon Fiber\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":52942370144541,"sku":"OOUK-TUBE-DEW-HEATER-AG14-ODK14","price":971.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_c449f2e8-d0a8-4374-8882-6cb365beed88.jpg?v=1789607040"},{"product_id":"orion-optics-uk-tube-dew-heater-ag16-odk16-carbon-fibre","title":"Orion Optics UK Carbon Dew Heater for AG16\/ODK16","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom designed for Orion Optics UK AG16 and ODK16 astrographs\u003c\/li\u003e\n\u003cli\u003eLightweight, rigid carbon fiber construction\u003c\/li\u003e\n\u003cli\u003eProvides even, gentle heat to prevent dew formation on large optics\u003c\/li\u003e\n\u003cli\u003eEnsures maximum light transmission by keeping optical surfaces clear\u003c\/li\u003e\n\u003cli\u003eEssential for all-night imaging sessions and remote observatories\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\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\u003eCarbon Dew Heater for AG16\/ODK16\u003c\/h2\u003e\n      \u003cp\u003eThe Orion Optics UK Carbon Dew Heater is the definitive solution for protecting the large-aperture optics of your AG16 or ODK16 astrograph. Engineered specifically for these elite imaging systems, this heater applies gentle, uniform warmth directly to the telescope tube. This actively prevents the formation of dew on your primary or secondary mirror, ensuring your long-exposure images remain free of artifacts and your observing sessions are not cut short by changing atmospheric conditions.\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\u003eProtect Your AG16\/ODK16 Optics from Session-Ending Dew\u003c\/h3\u003e\n      \u003cp\u003eAn investment in a premium astrograph like an AG16 or ODK16 deserves uncompromising protection. Condensation can halt an imaging run instantly, degrading contrast and obscuring faint detail. This custom-fit heater acts as essential insurance for your data, maintaining the optical surfaces just above the dew point without introducing tube currents, preserving the pristine image quality your Orion Optics UK telescope is known for.\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 Carbon Fiber Construction for Peak Efficiency\u003c\/h3\u003e\n      \u003cp\u003eUnlike generic dew straps, this heater is purpose-built for the exact dimensions of the AG16 and ODK16. Its rigid carbon fiber body ensures a perfect fit with no gaps, maximizing thermal transfer and efficiency. The lightweight nature of carbon fiber adds minimal weight to the end of your optical tube, preserving the delicate balance critical for precise tracking and guiding during astrophotography.\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\"\u003eWhy do I need a specific dew heater for my Orion Optics UK AG16 or ODK16?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Orion Optics UK Carbon Dew Heater is custom-designed to match the precise diameter and thermal requirements of the AG16 and ODK16 telescopes. This perfect fit ensures the most efficient and even heat distribution possible, something a generic, flexible strap cannot guarantee. It protects your investment and integrates seamlessly with your high-end instrument.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the carbon fiber construction of this dew heater benefit my imaging setup?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eCarbon fiber\u003c\/strong\u003e is both extremely lightweight and strong, adding negligible mass to your telescope and preventing balance issues. It is also an excellent material for distributing heat evenly across its surface, which gently warms the optical components without creating localized hot spots or introducing thermal currents that could degrade seeing.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need a separate controller for the AG16\/ODK16 Carbon Dew Heater?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this dew heater requires a separate dew controller. You will need a standard 12V DC controller with at least one heater output channel. Using a controller allows you to apply the minimum power necessary to prevent dew, which is more energy-efficient and minimizes any potential for heat-induced turbulence.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this dew heater on a different 16-inch telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis heater is specifically designed for the Orion Optics UK AG16 and ODK16 models. While it might physically fit other 16-inch class telescopes, the fit and thermal performance are only guaranteed for the instruments it was designed for. Using it on other models may result in a suboptimal fit and less effective dew prevention.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eMy AG16 is in a remote observatory. Is this dew heater a critical component?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. For any automated or remote imaging setup, reliable dew prevention is non-negotiable. The Orion Optics UK Carbon Dew Heater provides the dependability needed to ensure your system can run unattended through the night, regardless of humidity, protecting your imaging time and preventing lost data due to condensation.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I power the AG16\/ODK16 dew heater during a long imaging session at a dark site?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe heater is powered via a dew controller, which in turn connects to a 12V DC power source. For field use, this would typically be a high-capacity portable power station or a deep-cycle battery. The power draw is managed by your controller, allowing you to conserve battery life during long nights of imaging.\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      \n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\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":52942370275613,"sku":"OOUK-TUBE-DEW-HEATER-AG16-ODK16","price":974.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_c0db0303-3160-4156-94f0-5ec33275d5e0.jpg?v=1789607048"},{"product_id":"orion-optics-uk-tube-dew-heater-odk18tr-carbon-fibre","title":"Orion Optics UK Carbon Dew Heater for 18″ ODK","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-designed for 18″ Orion Optics UK ODK Truss telescopes\u003c\/li\u003e\n\u003cli\u003eLightweight and rigid carbon fiber construction\u003c\/li\u003e\n\u003cli\u003eProvides uniform heat to prevent dew formation on optics\u003c\/li\u003e\n\u003cli\u003eIntegrated design for a seamless fit and appearance\u003c\/li\u003e\n\u003cli\u003eRequires a standard third-party dew controller for operation\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\u003eOrion Optics UK Carbon Dew Heater for 18″ ODK\u003c\/h2\u003e\n\u003cp\u003eThe Orion Optics UK Carbon Dew Heater is engineered specifically for the 18″ ODK Truss telescope, providing a professional, integrated solution to protect its world-class optics. This carbon fiber heater ensures your 18″ primary mirror remains clear of dew all night long, preserving the high-contrast views these hand-figured systems are known for.\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\u003eProtecting Your 18\" ODK Optics from Dew\u003c\/h3\u003e\n\u003cp\u003eAn 18\" Dall-Kirkham optical system represents a significant investment in astronomical imaging. The last thing you want is a perfect night cut short by dew forming on your mirror. This heater provides gentle, evenly distributed warmth to the telescope's structure, keeping the optical surfaces just fractionally above the dew point without introducing image-degrading tube currents.\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\u003eCarbon Fiber Construction for the 18\" ODK Truss\u003c\/h3\u003e\n\u003cp\u003eConstructed from lightweight, rigid carbon fiber, this dew heater is not an afterthought accessory but an engineered component. It perfectly matches the aesthetics and build quality of the Orion Optics UK ODK line. Its rigidity ensures a precise fit that won't sag, slip, or lose contact, guaranteeing consistent heating performance throughout the night.\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 Design vs. Fabric Dew Straps\u003c\/h3\u003e\n\u003cp\u003eWhile generic fabric dew straps offer flexibility, they can be difficult to position perfectly on a large truss instrument and can create uneven heating spots. The Orion Optics UK Carbon Dew Heater is custom-made for the 18\" ODK, offering distinct advantages.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompetitor Advantage:\u003c\/strong\u003e A generic fabric strap can be moved between different telescopes of similar sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOOUK Carbon Heater:\u003c\/strong\u003e This heater provides a semi-permanent, integrated fit that delivers more uniform thermal control. Its sleek profile maintains the clean lines of your telescope and avoids the clutter of temporary straps and wires.\u003c\/li\u003e\n\u003c\/ul\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 makes the OOUK Carbon Dew Heater for the 18\" ODK different from a standard dew strap?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary difference is its \u003cstrong\u003ecustom-fit, rigid carbon fiber construction\u003c\/strong\u003e. Unlike a flexible fabric strap, this heater is engineered specifically for the 18\" ODK Truss (ODK18Tr), ensuring complete, uniform thermal contact and a much cleaner, integrated appearance without any risk of slipping or sagging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a separate controller for the 18\" Carbon Dew Heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This is a passive heating element and requires a standard, third-party dew controller to regulate power. It is compatible with most popular dew control systems available on the market.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Carbon Dew Heater for the 18\" ODK compatible with other 18\" telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is designed specifically for the dimensions and mounting points of the Orion Optics UK 18\" ODK Truss telescope. While it may physically fit other 18\" instruments, a perfect fit is not guaranteed, and modifications may be required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm planning an all-night imaging session of the Cygnus Wall in NGC 7000 with my 18\" ODK. How does this heater help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor long imaging runs, especially as temperatures drop overnight, dew is a constant threat. The Carbon Dew Heater for your 18\" ODK provides continuous, low-level heat that keeps your primary mirror's surface temperature just above the dew point. This prevents the gradual softening of focus and loss of contrast that occurs as micro-dew droplets form, ensuring your final sub-exposures are as sharp as your first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy observatory is in a high-humidity location. Is the 18\" Carbon Dew Heater effective enough for an ODK18Tr?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This heater is designed for precisely these conditions. By providing consistent, uniform heating across the telescope's structure, it actively combats dew formation even in very humid environments, allowing you to image from dusk until dawn without interruption.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the Carbon Dew Heater for the 18\" ODK installed?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater is designed to be a semi-permanent installation on the telescope's main tube or mirror cell structure. It attaches securely for a clean, integrated look that becomes part of the telescope itself, rather than a temporary add-on.\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 18\" ODK Truss Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCarbon Fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController\u003c\/td\u003e\n\u003ctd\u003eRequires external dew controller (not included)\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":52942370341149,"sku":"OOUK-TUBE-DEW-HEATER-ODK18TR-CARBON","price":1598.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/OrionOpticsUK-Carbon-Dew-Heater-for-18-1_b677c78d-e5f5-46bc-ab75-2185cab15c0e.jpg?v=1789607056"},{"product_id":"orion-optics-uk-tube-dew-heater-odk20tr-carbon-fibre","title":"Orion Optics UK Carbon Dew Heater for 20″ ODK","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-fit for Orion Optics UK 20\" ODK Telescopes\u003c\/li\u003e\n\u003cli\u003ePrevents dew formation on primary mirror and corrector optics\u003c\/li\u003e\n\u003cli\u003eLightweight and rigid carbon fiber construction\u003c\/li\u003e\n\u003cli\u003eEnsures maximum image contrast during long imaging sessions\u003c\/li\u003e\n\u003cli\u003eMatches the high-end finish of OOUK truss-tube telescopes\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\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\u003eOrion Optics UK Carbon Dew Heater for 20″ ODK\u003c\/h2\u003e\n      \u003cp\u003eThe Orion Optics UK Carbon Dew Heater is the essential accessory for maintaining the optical performance of your 20-inch ODK20Tr telescope. This custom-fit heater band prevents dew from forming on your optics, ensuring your expensive, hand-figured 20″ instrument delivers maximum contrast all night long.\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\u003ePreserve Your 20\" ODK's Contrast with Carbon Fiber Dew Control\u003c\/h3\u003e\n      \u003cp\u003eA 20-inch Optimized Dall-Kirkham telescope gathers incredible light, but its large, exposed optical surfaces are highly susceptible to dew. As the optics cool below the ambient dew point, moisture condenses, scattering light and devastating image contrast. This heater gently warms the telescope's tube assembly, keeping the optical surfaces just above the dew point without introducing tube currents.\u003c\/p\u003e\n      \u003cp\u003eConstructed from lightweight, rigid carbon fiber, this heater is designed to integrate seamlessly with the truss structure of your ODK20Tr. It provides a thermally stable and physically robust solution that matches the premium build of your telescope, protecting your investment and ensuring your all-night imaging sessions are not cut short by changing humidity.\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\"\u003eWhy do I need a Carbon Dew Heater for my Orion Optics UK 20\" ODK?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe large, fast optics of a 20\" ODK are highly efficient at radiating heat and cooling below the ambient temperature, making them a prime surface for dew formation. The \u003cstrong\u003eOrion Optics UK Carbon Dew Heater\u003c\/strong\u003e is critical for preventing this moisture buildup, which can completely ruin the contrast of your images and observations of objects like the Orion Nebula (M42) or faint galaxies in the Virgo Cluster.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the carbon fiber construction of the ODK20Tr dew heater benefit my setup?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eCarbon fiber offers two main advantages for the ODK20Tr dew heater:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eLightweight Strength:\u003c\/strong\u003e It adds minimal weight to the end of the optical tube, which is critical for maintaining the balance of a large 20\" instrument.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAesthetic Match:\u003c\/strong\u003e The material and finish are designed to match the high-end construction of the Orion Optics UK truss-tube telescopes, ensuring a seamless, professional appearance.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Carbon Dew Heater for 20\" ODK affect the telescope's optical performance?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, when used correctly with a dew controller. The heater is designed to apply a minimal, gentle heat—just enough to keep the optics a degree or two above the dew point. This prevents dew without creating the kind of significant heat that would cause internal tube currents or distort the optical figure, preserving the sharp, high-contrast views your 20\" ODK is built for.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhere on the 20\" ODK telescope is this Carbon Dew Heater installed?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis dew heater is designed as a band that wraps around the main tube or truss assembly near the front of the telescope. Its purpose is to warm the structure holding the primary mirror and any forward optical elements, preventing them from cooling to the dew point.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ODK20Tr dew heater with a different 20-inch telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis heater is custom-designed for the specific diameter and construction of the Orion Optics UK 20\" ODK (ODK20Tr) telescope. While it may physically fit other 20-inch telescopes, a perfect fit and optimal thermal contact are only guaranteed on the intended model.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of dew controller do I need for the Carbon Dew Heater for 20\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis heater requires a separate 12V DC dew controller to function. You will need a controller capable of providing sufficient power for a large 20\" heater band. While many controllers use standard RCA-style power plugs, you should verify the connector type and power requirements to ensure compatibility with your chosen system.\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\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eOrion Optics UK 20\" ODK Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCarbon Fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eActive Dew Prevention\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eExternal 12V DC Dew Controller (sold separately)\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\"\u003eCarbon Dew Heater for 20″ ODK\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":52942370439453,"sku":"OOUK-TUBE-DEW-HEATER-ODK20TR-CARBON","price":2164.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/OrionOpticsUK-Carbon-Dew-Heater-for-18-1_51973800-68b1-45fd-9df1-0fecdf24e273.jpg?v=1789607064"},{"product_id":"orion-optics-uk-tube-dew-heater-odk24tr-carbon-fibre","title":"Orion Optics UK Carbon Dew Heater for 24″ Orion Optics UK Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-fit for 24-inch Orion Optics UK ODK telescopes\u003c\/li\u003e\n\u003cli\u003eRigid carbon fibre construction for uniform heat transfer\u003c\/li\u003e\n\u003cli\u003ePrevents dew formation on primary and secondary mirrors\u003c\/li\u003e\n\u003cli\u003eEngineered specifically for the ODK24Tr model\u003c\/li\u003e\n\u003cli\u003eMaintains the optical performance of high-grade mirror systems\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\u003eCarbon Dew Heater for 24″ Orion Optics UK Telescopes\u003c\/h2\u003e\n\u003cp\u003eThis Carbon Dew Heater is engineered by Orion Optics UK as a dedicated thermal solution for their 24-inch ODK telescopes, specifically the ODK24Tr. Designed to integrate seamlessly with the carbon fibre tube, it provides the gentle, consistent heat necessary to prevent dew from forming on your primary and secondary mirrors. For owners of these premium, hand-figured optical systems, this heater is the definitive method for protecting your investment and ensuring your imaging sessions are not cut short by changing atmospheric conditions.\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\u003eProtecting Premium Optics: Custom-Fit for the 24\" ODK\u003c\/h3\u003e\n\u003cp\u003eA 24-inch Truss Dall-Kirkham is a serious instrument where optical clarity is paramount. This dew heater is not a generic, one-size-fits-all accessory; it is custom-formed for the precise diameter of the ODK24Tr tube assembly. This perfect fit ensures there are no gaps or pressure points, delivering uniform warmth across the tube to keep the internal optics above the dew point without introducing tube currents or thermal distortion.\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\u003eCarbon Fibre Construction: Efficient and Stable Heating\u003c\/h3\u003e\n\u003cp\u003eConstructed from carbon fibre, the heater matches the material of the telescope's own optical tube. This provides structural rigidity that soft, fabric-based dew straps lack, preventing any sagging that could interfere with the truss structure or balance. The material's thermal properties ensure efficient, low-power heat transfer, creating an integrated system that looks and performs as a single, cohesive unit.\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\u003eOrion Optics Heater vs. Generic Straps: A Purpose-Built Solution\u003c\/h3\u003e\n\u003cp\u003eWhile generic fabric dew straps offer flexibility for use on multiple telescopes, they present challenges on a large-aperture instrument like the 24-inch ODK.\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit and Contact:\u003c\/strong\u003e A generic strap can be difficult to tension correctly on such a large diameter, leading to uneven heating and potential sagging. The Orion Optics UK Carbon Heater is a rigid ring that provides guaranteed, uniform contact with the tube wall.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegration:\u003c\/strong\u003e This heater is designed to be a semi-permanent part of the telescope. It complements the aesthetics and engineering of the ODK, unlike a temporary strap that can look out of place and require adjustment each session.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Efficiency:\u003c\/strong\u003e By matching the heater's design to the specific thermal mass and materials of the ODK24Tr, Orion Optics UK ensures optimal heating with minimal power, preserving your field battery for your camera and mount.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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 this specific Carbon Dew Heater for my 24\" Orion Optics UK telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis heater is custom-designed for the exact dimensions and thermal properties of the 24\" ODK24Tr. Unlike generic straps, its rigid carbon fibre construction provides a perfect fit, ensuring uniform heat distribution to protect the large, high-grade primary and secondary mirrors from dew without compromising optical stability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the carbon fibre construction of this heater benefit my ODK24Tr?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe carbon fibre build offers two main advantages. First, it is structurally rigid, so it will not sag or lose contact with the optical tube like a fabric strap might on a large-diameter scope. Second, it provides efficient and even heat transfer, matching the thermal characteristics of the telescope's own carbon fibre tube for an integrated and effective dew prevention system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Orion Optics UK dew heater prevent dew on both the primary and secondary mirrors?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. By gently warming the entire tube assembly, the heater raises the temperature of the air and optical surfaces inside the tube just slightly above the ambient dew point. This prevents condensation from forming on all internal optical surfaces, including both the primary and secondary mirrors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this heater compatible with standard dew controllers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this dew heater is designed to be used with standard 12V DC dew heater controllers from major astronomy brands. It typically connects via a standard RCA-style phono plug, allowing you to integrate it into your existing power and thermal management setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging faint galaxies like the Leo Triplet (M65, M66, NGC 3628) with my 24\" ODK on a humid night. How does this heater ensure my optics stay clear?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor long-exposure imaging of faint targets like the Leo Triplet, even a small amount of dew can scatter light and dramatically reduce contrast, washing out faint galaxy details. The Carbon Dew Heater maintains your optics at a stable temperature just above the dew point, ensuring your system operates at peak performance throughout the entire imaging session, preserving contrast and signal-to-noise ratio.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCompared to a generic fabric dew strap, what is the main advantage of the Orion Optics UK Carbon Heater for my large ODK24Tr telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is its perfect, rigid fit. A generic fabric strap on a 24-inch diameter tube can be prone to sagging and creating hot or cold spots. The Orion Optics UK Carbon Heater acts as a structural component, guaranteeing complete, uniform thermal contact for reliable and efficient dew prevention tailored specifically to the ODK24Tr.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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":52942370570525,"sku":"OOUK-TUBE-DEW-HEATER-ODK24TR-CARBON","price":3015.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/OrionOpticsUK-Carbon-Dew-Heater-for-18-1_45422232-3769-4a22-a3f4-fc439d0d3e40.jpg?v=1789607073"},{"product_id":"orion-optics-uk-secondary-dew-heater-ag10-odk10-carbon-fibre","title":"Orion Optics UK Dew Heater for 10\" Orion Optics UK Secondary Mirrors","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-designed for 10\" Orion Optics UK AG10 \u0026amp; ODK10 telescopes\u003c\/li\u003e\n\u003cli\u003ePrevents dew formation on the secondary mirror\u003c\/li\u003e\n\u003cli\u003eMaintains maximum image contrast and sharpness\u003c\/li\u003e\n\u003cli\u003eEnsures uninterrupted all-night imaging sessions\u003c\/li\u003e\n\u003cli\u003eEngineered by Orion Optics UK for a perfect fit\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 10\" Orion Optics UK Secondary Mirrors\u003c\/h2\u003e\n\u003cp\u003eDesigned specifically for the secondary mirror on 10-inch Orion Optics UK AG10 and ODK10 astrographs, this heater prevents the formation of session-ending dew. By applying gentle, continuous warmth, it ensures your optics remain clear and your images stay sharp, even on the most humid nights.\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\u003eGuard Your ODK10\/AG10 Secondary Against Dew\u003c\/h3\u003e\n\u003cp\u003eOpen-tube astrographs like the Orion Optics UK AG10 and ODK10 are exceptional performers, but their exposed secondary mirrors are highly susceptible to dewing over. As the mirror radiates heat and cools below the ambient air temperature, moisture condenses on its surface, scattering light, reducing contrast, and ultimately ending your observation or imaging run.\u003c\/p\u003e\n\u003cp\u003eThis secondary heater is the definitive solution. It gently raises the mirror's temperature just slightly above the dew point, preventing condensation from ever forming without introducing tube currents that could degrade image quality.\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 Custom-Fit Solution for 10-inch Orion Optics UK OTAs\u003c\/h3\u003e\n\u003cp\u003eUnlike generic dew straps that can be awkward to fit or may obstruct the light path, this heater is engineered by Orion Optics UK specifically for their 10-inch AG10 and ODK10 models. This custom design guarantees a perfect fit around the secondary mirror assembly, ensuring efficient and even heat transfer.\u003c\/p\u003e\n\u003cp\u003eThe heater integrates seamlessly with your telescope, including models with carbon fibre tubes, providing a reliable, set-and-forget dew prevention system. It's an essential accessory for any imager who demands consistent, all-night operation from their high-end instrument.\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 Dew Heater for my 10\" Orion Optics UK secondary?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis heater is custom-designed by Orion Optics UK for their 10-inch AG10 and ODK10 models. This ensures a perfect fit on the secondary mirror holder for optimal heat transfer and guarantees it won't interfere with the optical path, a common risk with generic, one-size-fits-all dew straps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this heater prevent my ODK10 from dewing up while imaging the North American Nebula (NGC 7000)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. Its sole purpose is to keep the secondary mirror clear of dew throughout an entire imaging session. By maintaining the mirror's surface just above the dew point, it allows for uninterrupted, multi-hour exposures of faint targets like NGC 7000, even on nights with high humidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Orion Optics UK Dew Heater difficult to install on an AG10?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is designed to be straightforward for the specified models. It is built to integrate with the existing secondary mirror assembly of the 10-inch AG10 and ODK10 telescopes, providing a secure and reliable fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this heater help when imaging Jupiter with my 10\" AG10 on a damp night?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eEven a thin, invisible layer of dew can soften high-resolution planetary views. This heater prevents that subtle loss of contrast and sharpness by keeping the secondary completely clear. This ensures you can capture the finest details in Jupiter's cloud bands, like the Great Red Spot, with maximum clarity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this Dew Heater require a separate controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This is a heating element only and requires a dew heater controller to regulate power. These heaters are designed to be efficient, applying only the minimal warmth needed to prevent dew, which helps conserve battery life and minimizes any risk of introducing heat-induced air currents into the optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I just use a generic dew strap instead of this Orion Optics UK heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile a generic strap might provide some heating, it is not optimized for this specific application. The \u003cstrong\u003eOrion Optics UK custom heater\u003c\/strong\u003e ensures direct, efficient thermal contact with the secondary assembly and is sized correctly to avoid any vignetting or obstruction of the light path, providing a safer and more effective solution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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":52942370701597,"sku":"OOUK-SECONDARY-DEW-HEATER-AG10-ODK10","price":809.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_55a49076-936d-4ae3-959d-608deacd2eb0.jpg?v=1789607081"},{"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":1101.0,"currency_code":"CAD","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"},{"product_id":"orion-optics-uk-secondary-dew-heater-ag14-odk14-carbon-fibre","title":"Orion Optics UK Dew Heater for Sec. 14″","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-designed for 14\" Orion Optics UK secondary mirrors\u003c\/li\u003e\n\u003cli\u003ePrevents dew formation on the secondary optical surface\u003c\/li\u003e\n\u003cli\u003eEnsures maximum image contrast and light transmission\u003c\/li\u003e\n\u003cli\u003eEngineered for AG14 and ODK14 telescope models\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\u003eDew Heater for Sec. 14″\u003c\/h2\u003e\n\u003cp\u003eThis Orion Optics UK Dew Heater is the definitive solution for protecting the secondary mirror of your 14-inch telescope from moisture. Custom-engineered specifically for the 14-inch AG14 and ODK14 models, it ensures your imaging sessions are not cut short by dew. By applying gentle, controlled warmth, this heater keeps the secondary mirror surface just above the dew point, preserving the high-contrast performance of your 14-inch optical system all night long.\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\u003eMaintain Peak Contrast: Why Your 14\" Secondary Needs Heat\u003c\/h3\u003e\n\u003cp\u003eIn any open-tube Newtonian or Dall-Kirkham design, the secondary mirror is the most exposed optical element and the first to fall victim to dew. As its temperature drops below the ambient dew point, microscopic water droplets form, scattering light, destroying contrast, and ultimately rendering your telescope unusable. This heater for your 14-inch secondary directly counteracts this cooling, maintaining the mirror's surface temperature to prevent dew from ever forming.\u003c\/p\u003e\n\u003cp\u003eThe result is a protected optical surface that continues to deliver the sharp, high-contrast views your Orion Optics UK instrument was built for. For imagers, this means no loss of faint signal from nebulae or galaxies, and for visual observers, it means planetary details remain crisp even on damp nights.\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\u003eSeamless Integration for 14\" AG14 \u0026amp; ODK14 Telescopes\u003c\/h3\u003e\n\u003cp\u003eThis is not a generic, one-size-fits-all solution. The Orion Optics UK Dew Heater for Sec. 14\" is designed to integrate perfectly with the specific mechanics of their 14-inch Astrograph (AG14) and Optimized Dall-Kirkham (ODK14) telescopes. Its form factor and power requirements are matched to the instrument, ensuring efficient heat transfer without introducing any optical or mechanical interference.\u003c\/p\u003e\n\u003cp\u003eBy using a component designed by the telescope's original manufacturer, you guarantee a correct fit and reliable operation. It's an essential piece of equipment for any owner of a 14-inch Orion Optics UK telescope who observes or images in humid conditions.\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 secondary dew heater for my Orion Optics UK 14\" telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe secondary mirror on your 14\" AG14 or ODK14 is exposed to the night sky and will radiate heat, quickly cooling below the dew point. When this happens, dew forms and completely compromises your images and views by scattering light. This heater is essential insurance against a session-ending dew-out.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Orion Optics UK 14\" dew heater compatible with other telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This heater is specifically designed for the secondary mirror mounts and dimensions of the \u003cstrong\u003eOrion Optics UK 14\" AG14 and ODK14 models\u003c\/strong\u003e. Using it on other telescopes is not recommended as the fit and heating characteristics may not be appropriate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill using this heater on my ODK14 affect image quality or introduce tube currents?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen used with a proper dew controller, the heater applies very gentle, low-power warmth—just enough to stay 1-2 degrees above the dew point. This minimal thermal input is highly unlikely to create noticeable tube currents or degrade the exceptional image quality of your 14-inch ODK14. Its primary function is to preserve, not alter, the optical performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging the Andromeda Galaxy (M31) with my AG14; how critical is this heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor long-exposure imaging of faint, broad targets like the Andromeda Galaxy (M31), preventing dew is absolutely critical. Even a thin layer of dew on the secondary of your AG14 will scatter faint light from the galaxy's outer arms, drastically reducing contrast against the sky background. This heater ensures your 14\" optical system collects clean data for the entire duration of your imaging run.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of dew controller do I need for this 14\" secondary heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a 12V DC dew controller system with at least one available heater output channel. These controllers allow you to adjust the power sent to the heater, ensuring you apply only the minimum energy needed to prevent dew. This conserves battery power and minimizes any potential for heat-induced turbulence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the Dew Heater for Sec. 14\" installed?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation typically involves attaching the heater element to the back of the secondary mirror holder. The power cable is then routed along one of the secondary spider vanes to the outside of the optical tube for connection to a dew controller. Always refer to the manufacturer's specific instructions for your telescope model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\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":52942370898205,"sku":"OOUK-SECONDARY-DEW-HEATER-AG14-ODK14","price":1193.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_abab4261-c8fe-41cc-b497-175ad5c65376.jpg?v=1789607097"},{"product_id":"orion-optics-uk-secondary-dew-heater-ag16-odk16-carbon-fibre","title":"Orion Optics UK Dew Heater for Sec. 16″","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePrevents dew formation on secondary mirrors\u003c\/li\u003e\n\u003cli\u003eCustom-designed for 16-inch Orion Optics UK telescopes\u003c\/li\u003e\n\u003cli\u003eEssential for all-night imaging and observing sessions\u003c\/li\u003e\n\u003cli\u003eMaintains optical clarity in damp conditions\u003c\/li\u003e\n\u003cli\u003eCompatible with AG16 and ODK16 models\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. 16″\u003c\/h2\u003e\n\u003cp\u003eThe Orion Optics UK Dew Heater is the essential accessory for protecting the secondary mirror of your 16-inch AG16 or ODK16 telescope from moisture. Specifically engineered for these large-aperture systems, this heater gently warms the secondary optic just enough to prevent the formation of dew, ensuring your imaging or observing session is not cut short by changing atmospheric conditions.\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\u003eProtecting Your 16-inch Secondary Mirror\u003c\/h3\u003e\n\u003cp\u003eIn open-tube astrographs like the ODK16, the secondary mirror is highly exposed to the night sky and is often the first surface to collect dew. This heater applies a minimal, uniform amount of heat directly to the mirror's backing, keeping its surface temperature just above the dew point without introducing tube currents or degrading the high-precision figure of your Orion Optics UK primary.\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 is a secondary dew heater critical for a 16\" Orion Optics UK telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLarge, exposed secondary mirrors on open-tube designs like the AG16 and ODK16 have significant thermal mass and radiate heat quickly, making them highly susceptible to dew. A dedicated heater is the only reliable way to prevent moisture from condensing on the optical surface, which can ruin a night of imaging or observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Orion Optics UK Dew Heater for Sec. 16\" cause tube currents?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this heater is designed to apply very low, gentle warmth. When used with a proper dew controller (sold separately), it raises the mirror temperature only slightly above the ambient dew point, which is not enough to induce image-degrading thermal currents within the optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this dew heater compatible with my 16-inch telescope from another brand?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis heater is specifically designed for the secondary mirror mounts and dimensions of the Orion Optics UK 16-inch AG16 and ODK16 models. While it may physically fit other 16-inch systems, proper fit and thermal contact are not guaranteed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a separate controller for the Orion Optics UK Dew Heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a heater element only and requires a dew heater controller to power it and regulate the heat output. Using a controller is essential for providing the right amount of power to prevent dew without overheating the optic.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Dew Heater for Sec. 16\" help when imaging faint nebulae like the Cygnus Loop?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eImaging faint, extended targets like the Cygnus Loop (NGC 6960, NGC 6992) requires long, uninterrupted exposures over many hours. The slightest bit of dew on the secondary mirror will scatter light, reduce contrast, and obscure faint detail. This heater ensures your optical surface remains perfectly clear from dusk until dawn, protecting the integrity of your data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the Orion Optics UK Dew Heater for Sec. 16\" installed?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTypically, a secondary dew heater is mounted to the back of the secondary mirror itself, inside the mirror holder. The power cable is then routed along one of the spider vanes to the outside of the telescope tube. Professional installation may be required if you are not comfortable disassembling the secondary mirror holder.\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 16\" AG16 \u0026amp; ODK16 Telescopes\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":52942371062045,"sku":"OOUK-SECONDARY-DEW-HEATER-AG16-ODK16","price":1385.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_e5797f39-9fe4-475b-bf6a-972af4704952.jpg?v=1789607106"},{"product_id":"orion-optics-uk-secondary-dew-heater-odk18tr-carbon-fibre","title":"Orion Optics UK Dew Heater for 18\" Secondary (ODK18Tr)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-designed for the Orion Optics UK 18\" ODK secondary mirror\u003c\/li\u003e\n\u003cli\u003eProvides active heating to prevent dew formation\u003c\/li\u003e\n\u003cli\u003eLightweight carbon fibre construction\u003c\/li\u003e\n\u003cli\u003eEnsures maximum light transmission on humid nights\u003c\/li\u003e\n\u003cli\u003eSeamless integration with the ODK18Tr secondary assembly\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\u003eOrion Optics UK Dew Heater for 18\" Secondary (ODK18Tr)\u003c\/h2\u003e\n\u003cp\u003eThis Orion Optics UK Dew Heater is engineered specifically for the secondary mirror of the 18\" ODK telescope, providing an essential defence against dew. Built from lightweight carbon fibre, this heater ensures your ODK18Tr maintains pristine, high-contrast views throughout the longest imaging sessions, even as temperatures drop and humidity rises. It is the definitive solution for preventing the subtle, image-degrading effects of condensation on your secondary mirror.\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\u003eProtecting the ODK18 Secondary: Active Dew Prevention\u003c\/h3\u003e\n\u003cp\u003eAn open-tube design like the Orion Optics ODK18 is highly susceptible to dew, especially on the exposed secondary mirror which cools rapidly to the ambient temperature. This heater gently applies a small, consistent amount of heat directly to the secondary mirror assembly, keeping its surface just above the dew point without introducing tube currents or optical distortions. This active prevention is critical for long-exposure astrophotography, where even a thin film of dew can scatter light, reduce contrast, and ruin hours of data.\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\u003eODK18Tr Integration: Custom-Fit Carbon Fibre Construction\u003c\/h3\u003e\n\u003cp\u003eDesigned as the ODK18Tr secondary dew heater, this component integrates perfectly with the telescope's existing hardware. The use of carbon fibre ensures the unit adds minimal weight to the secondary assembly, preserving the telescope's precise collimation and balance. This custom fit guarantees an unobtrusive installation that does not interfere with the light path, maintaining the ODK's exceptional optical throughput while providing total protection from dew.\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 is a dedicated dew heater needed for the ODK18 secondary mirror?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eOrion Optics UK 18\" ODK\u003c\/strong\u003e is a large, open-truss instrument, making its secondary mirror highly exposed to the night sky. This exposure causes it to cool quickly, often below the dew point, leading to condensation that degrades image quality. A dedicated heater is the only reliable way to keep the mirror surface clear all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the ODK18Tr Dew Heater introduce heat plumes or turbulence?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The heater is designed to apply very low, gentle warmth, typically raising the mirror temperature only a few degrees above ambient. When used with a proper dew controller that regulates power, it prevents dew formation without creating the kind of thermal gradients that cause visible tube currents or image distortion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a separate dew controller for the ODK18Tr Heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This is a heating element and requires an external dew controller to manage the power output. Using a controller is highly recommended as it allows you to apply only the necessary amount of heat, saving battery power and ensuring thermal stability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-Q\"\u003eHow does the carbon fibre construction of the ODK18Tr heater benefit the telescope?\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eCarbon fibre\u003c\/strong\u003e is extremely strong and lightweight. By using this material, the heater adds negligible mass to the secondary mirror assembly, which is critical for maintaining the telescope's mechanical balance and holding collimation accurately throughout an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this dew heater compatible with other 18\" telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis heater is specifically designed for the secondary mirror assembly of the \u003cstrong\u003eOrion Optics UK ODK18Tr\u003c\/strong\u003e. It is not a universal-fit heater and is unlikely to be compatible with secondary holders from other manufacturers, even on telescopes of a similar aperture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this heater improve imaging of faint targets like the Veil Nebula (NGC 6960)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging faint, low-contrast targets like the Veil Nebula, maintaining every bit of light transmission and contrast is essential. Dew on the secondary scatters faint light and reduces overall image brightness. The \u003cstrong\u003eODK18Tr Dew Heater\u003c\/strong\u003e ensures the optical surface remains perfectly clear, preserving the subtle details and faint wisps of nebulosity during the multi-hour exposures required for such objects.\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 18\" ODK Secondary Mirror (ODK18Tr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCarbon Fibre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eActive Dew Prevention Heater\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\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":52942374797597,"sku":"OOUK-SECONDARY-DEW-HEATER-ODK18TR-CARBON","price":1960.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_fd099893-d467-4593-a893-3a6b275ada1f.jpg?v=1789607114"},{"product_id":"orion-optics-uk-secondary-dew-heater-odk20tr-carbon-fibre","title":"Orion Optics UK Dew Heater for Sec. 20″","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-designed for the Orion Optics UK 20-inch ODK secondary mirror\u003c\/li\u003e\n\u003cli\u003ePrevents dew formation to maintain maximum image contrast\u003c\/li\u003e\n\u003cli\u003eLightweight carbon fibre construction\u003c\/li\u003e\n\u003cli\u003eEnsures peak performance from your hand-figured optics\u003c\/li\u003e\n\u003cli\u003eIntegrates with standard 12V dew heater controllers\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\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. 20″\u003c\/h2\u003e\n      \u003cp\u003eThis Orion Optics UK Dew Heater is engineered specifically to protect the secondary mirror of your 20-inch ODK Truss telescope from moisture. By applying gentle, controlled heat, this essential accessory ensures your 20-inch aperture operates at its full potential, preventing the contrast-robbing effects of dew. Preserve the flawless images produced by your hand-figured optics on even the most humid nights with this custom-fit heater for the 20-inch ODK.\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\u003eProtect Your 20-inch ODK's Secondary from Dew\u003c\/h3\u003e\n      \u003cp\u003eThe secondary mirror is the most exposed optical surface in a Newtonian or Cassegrain design, making it the first component to collect dew. Even a thin film of moisture will scatter light, dramatically reducing image contrast and obscuring fine planetary or deep-sky detail. This heater is custom-built for the ODK20's secondary housing, ensuring efficient heat transfer without compromising collimation or obstructing the light path.\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\u003eCarbon Fibre Construction: Lightweight and Efficient\u003c\/h3\u003e\n      \u003cp\u003eConstructed from carbon fibre, this secondary heater adds minimal mass to the telescope's spider assembly. This is critical for maintaining the mechanical stability and balance of the 20-inch ODK, preventing any flexure that could degrade optical alignment. The material's excellent thermal properties ensure even heat distribution, gently warming the mirror just above the dew point without introducing tube currents.\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\"\u003eWhy do I need a specific dew heater for the Orion Optics UK 20\" ODK secondary?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA generic dew strap is not suitable for a secondary mirror assembly. The Orion Optics UK Dew Heater for Sec. 20\" is custom-shaped to fit the specific dimensions of the ODK20's secondary housing. This ensures a secure fit, efficient heating, and avoids any interference with the telescope's light path or collimation screws.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this dew heater improve images from my 20-inch ODK?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eBy preventing dew from forming on the secondary mirror, this heater preserves the high contrast and sharpness your ODK20's hand-figured optics are designed to deliver. A dew-free secondary ensures that faint details on planets like Jupiter and subtle structures in distant nebulae are not washed out by scattered light, allowing you to get the most out of every clear night.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the ODK20 Dew Heater compatible with standard dew controllers?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this dew heater is designed to be powered by common 12V DC dew heater control systems. You will need a compatible controller with an available output channel to regulate the power delivered to the heater. Always verify the connector type matches your specific control box.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the signs that my ODK20 secondary mirror has dewed over?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe first sign of dew on the secondary is a significant loss of image contrast. Stars will appear less sharp, and faint objects will become difficult or impossible to see. In severe cases, the entire field of view will look grey and washed out, as if you are looking through a fog. This heater prevents that from ever happening.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow is this carbon fibre heater different from a standard dew strap?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA standard dew strap is a flexible fabric band with a heating element, designed to wrap around an eyepiece or refractor dew shield. This heater is a rigid, custom-molded carbon fibre component designed for permanent installation on the back of the secondary mirror housing. Its lightweight, rigid construction is essential for maintaining the precise balance and collimation of the secondary mirror assembly.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I leave the Dew Heater for Sec. 20\" permanently installed?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this heater is designed for permanent installation on your ODK20 telescope. Its minimal weight and custom fit mean it will not interfere with the telescope's operation, balance, or storage. You can simply connect it to your dew controller at the start of each session.\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      \n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \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":52942374994205,"sku":"OOUK-SECONDARY-DEW-HEATER-ODK20TR-CARBON","price":2252.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_ccf821df-83b3-4649-95cb-5032a399f534.jpg?v=1789607123"},{"product_id":"orion-optics-uk-secondary-dew-heater-odk24tr-carbon-fibre","title":"Orion Optics UK Dew Heater for Sec. 24″","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-fit for the Orion Optics UK 24\" ODK secondary mirror\u003c\/li\u003e\n\u003cli\u003ePrevents dew formation to maintain image contrast and brightness\u003c\/li\u003e\n\u003cli\u003eConstructed from lightweight and durable carbon fibre\u003c\/li\u003e\n\u003cli\u003eEssential for long-exposure astrophotography sessions\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\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. 24″\u003c\/h2\u003e\n      \u003cp\u003eThis Orion Optics UK Dew Heater is specifically engineered for the secondary mirror of the 24\" ODK telescope, providing an essential defense against image-degrading moisture. Constructed from rigid carbon fibre, it ensures your telescope's hand-figured optics perform at their peak throughout the night by gently warming the secondary mirror just above the dew point, preserving the high-contrast views required for elite astrophotography.\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\u003ePurpose-Built Dew Prevention for the ODK24 Secondary\u003c\/h3\u003e\n      \u003cp\u003eThe open-tube design of the Orion Optics UK 24\" ODK, while excellent for rapid thermal acclimation, leaves the secondary mirror exposed to the night air. As temperatures drop, this critical optical surface can cool below the dew point, causing micro-droplets of water to form, scattering light and severely reducing image contrast. This heater is designed to stop that process before it starts, applying minimal, controlled warmth directly to the secondary mirror housing to keep it clear all night.\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\u003eLightweight Carbon Fibre Construction\u003c\/h3\u003e\n      \u003cp\u003eEngineered from carbon fibre, this secondary dew heater adds negligible weight to the telescope's front assembly. This is critical for maintaining the fine balance of the optical tube and ensures there is no undue stress on the secondary mirror spider vanes. The material's excellent thermal properties also contribute to even heat distribution, preventing hotspots and ensuring uniform protection across the mirror's surface.\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\"\u003eWhy is a dedicated secondary heater essential for the Orion Optics UK 24\" ODK?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe 24\" ODK's large, exposed secondary mirror is highly susceptible to dew, especially during long imaging sessions on humid nights. Even a thin layer of dew can scatter light from bright stars and erase faint detail in galaxies and nebulae. This heater is a non-negotiable accessory for maintaining the telescope's high-contrast optical capabilities.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the signs my ODK24 secondary mirror is dewing over?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe first signs of secondary mirror dew are a gradual loss of contrast, a \"halo\" or glow appearing around bright stars, and the inability to resolve faint details you could see earlier in the session. In severe cases, the entire field of view will appear washed out and foggy. The Orion Optics UK Dew Heater prevents these issues from ever impacting your observations or images.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the carbon fibre body of this Orion Optics UK heater help?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eCarbon fibre\u003c\/strong\u003e is both extremely lightweight and structurally rigid. This minimizes its impact on the telescope's balance and collimation by adding virtually no extra mass or stress to the secondary spider assembly. It is an ideal material for this critical location in the optical path.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill installing the Dew Heater for Sec. 24\" affect my telescope's collimation?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. This heater is designed to integrate with the existing secondary mirror assembly without altering the optical alignment. Its lightweight carbon fibre construction ensures it does not cause any sag or shift in the secondary mirror's position.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the Dew Heater for Sec. 24\" powered and controlled?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis dew heater is designed to be connected to a standard third-party dew controller. A controller allows you to adjust the power level, providing just enough heat to prevent dew without introducing tube currents, which is the recommended practice for optimal image stability.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I leave the Orion Optics UK Dew Heater permanently installed on my ODK24?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the heater is designed for permanent installation. It becomes an integrated part of your telescope, ready to be powered on whenever you observe, simplifying your setup and teardown process.\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      \n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\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":52942375190813,"sku":"OOUK-SECONDARY-DEW-HEATER-ODK24TR-CARBON","price":2344.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_879c6bfd-2257-484d-8fa4-b08c9ee94aac.jpg?v=1789607131"},{"product_id":"orion-optics-uk-omc200-carbon-dew-shield-screw-fitting","title":"Orion Optics UK OMC-200 Carbon Dew Shield (screw fitting)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned exclusively for the Orion Optics UK OMC-200\u003c\/li\u003e\n\u003cli\u003eLightweight, rigid carbon fiber construction\u003c\/li\u003e\n\u003cli\u003eLow thermal conductivity minimizes dew formation\u003c\/li\u003e\n\u003cli\u003eSecure screw-fitting prevents slippage and light leaks\u003c\/li\u003e\n\u003cli\u003eBlocks stray light to maximize image contrast\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\u003eOMC-200 Carbon Dew Shield (screw fitting)\u003c\/h2\u003e\n\u003cp\u003eThe Orion Optics UK OMC-200 Carbon Dew Shield is the essential, purpose-built accessory for protecting the 200mm optics of your OMC-200 Maksutov-Cassegrain, providing superior dew prevention and stray light rejection through its rigid carbon fiber construction and secure screw-on attachment.\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\u003eCarbon Fiber Construction: Lightweight Strength and Thermal Stability\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade carbon fiber, this dew shield offers exceptional rigidity without adding significant weight to the front of your optical tube. Unlike aluminum shields that cool quickly and can attract moisture, carbon fiber's low thermal conductivity helps keep the corrector plate's surface temperature above the dew point, actively delaying the formation of condensation during long 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\u003eSecure Screw-Fit Attachment for the OMC-200\u003c\/h3\u003e\n\u003cp\u003eEngineered specifically for the OMC-200, this shield features a precision screw-fitting that attaches directly to the telescope's front cell. This creates a solid, stable connection that cannot slip, sag, or fall off as temperatures change—a common issue with generic friction-fit shields. The secure fit also eliminates any possibility of stray light leaking in at the base, ensuring maximum contrast for both visual observation and critical astrophotography.\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\u003eOMC-200 Carbon Shield vs. Generic Friction-Fit Shields: A Custom Solution\u003c\/h3\u003e\n\u003cp\u003eWhile universal dew shields offer a lower-cost alternative, they cannot match the integrated design of a custom-fit solution. A generic shield's primary advantage is its price and compatibility with multiple telescopes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit and Security:\u003c\/strong\u003e The OMC-200 shield's screw-on design is mechanically superior to the felt-lined friction fit of generic models, which can lose their grip and cause focus shift or damage if they fall.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Carbon fiber provides better thermal insulation than the flexible plastic or aluminum common in universal shields, offering more effective dew prevention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Control:\u003c\/strong\u003e The seamless, threaded attachment of the OMC-200 shield ensures a perfectly dark optical path, whereas generic shields can allow light to enter around an imperfect seal.\u003c\/li\u003e\n\u003c\/ul\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 is a carbon fiber dew shield better for the OMC-200 than an aluminum one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eCarbon fiber has much lower thermal conductivity than aluminum.\u003c\/strong\u003e This means it doesn't cool down as quickly when exposed to the night sky. An aluminum shield can become cold and actually cause dew to form near the corrector plate, whereas a carbon fiber shield helps insulate the front of the telescope, keeping it above the dew point for longer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the screw-fitting on the OMC-200 dew shield?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe screw-fitting provides a \u003cstrong\u003erock-solid, perfectly aligned attachment\u003c\/strong\u003e to the OMC-200's front cell. Unlike friction-fit shields that can slip, tilt, or even fall off, the threaded connection ensures the shield stays exactly where you put it, preventing vignetting, light leaks, and potential damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this OMC-200 dew shield prevent my corrector plate from dewing up completely?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt will significantly delay the onset of dew by blocking direct exposure to moist, open air and providing thermal insulation. However, in extremely high humidity, dew may eventually form. For all-night imaging in very damp conditions, this shield can be used in conjunction with a gentle heated dew strap for guaranteed protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the OMC-200 dew shield improve contrast when imaging Jupiter from my backyard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy extending the optical tube, the dew shield effectively blocks off-axis stray light from sources like streetlights, house lights, or even bright moonlight. This stray light would otherwise scatter inside the telescope and wash out faint details. With the shield attached, your images of Jupiter will have a \u003cstrong\u003edarker background sky\u003c\/strong\u003e, making subtle cloud bands and the Great Red Spot appear with higher contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use a heated dew strap with the OMC-200 Carbon Dew Shield?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While the carbon fiber construction is very effective on its own, you can wrap a standard dew heater strap around the main optical tube, just behind the front cell where the corrector plate is located. The dew shield then fits over this area, helping to trap the gentle warmth from the heater and increase its efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the OMC-200 dew shield useful for daytime solar observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. When using a proper, full-aperture solar filter, the dew shield helps block stray sunlight from hitting the filter or entering the eyepiece at an angle. This reduces internal reflections and glare, resulting in a higher-contrast view of sunspots and solar granulation. It also helps to shield the tube from direct solar heating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\"\u003eOMC-200 Carbon Dew Shield (screw fitting)\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\/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":52942566097181,"sku":"OOUK-OMC200-CARBON-DEW-SHIELD-SCREW","price":660.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/OrionOpticsUK-OMC-200-Carbon-Dew-Shield-screw-fitting-1_780a1487-b7cb-4830-aaf7-ce9ef1cde5c6.jpg?v=1789607954"}],"url":"https:\/\/davidastro.com\/fr-us\/collections\/orion-optics-uk-dew-control.oembed","provider":"David Astro","version":"1.0","type":"link"}