Orion Optics UK Dew Heater for Sec. 12″

This 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.

No. 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.

Long 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.

This 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.

Yes. 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.

While 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 active heater provides guaranteed protection by keeping the glass temperature safely above the dew point, a more reliable solution for serious astrophotography.