Avoid annoying light influences from the rear of your Newtonian telescope with a suitable primary mirror cover.
A primary mirror cover can help minimise unwanted light that could interfere with your view through your Newtonian telescope. This allows you to improve the quality of your observations and bring out the details of celestial objects.
The 5V USB fan helps to bring the primary mirror of your telescope to ambient temperature more quickly, which can significantly improve image quality. If the mirror is too cold or too warm, air turbulence can occur, which impairs visibility. With effective ventilation, you can enjoy clearer and sharper images of celestial objects.
The material is 3D-printed PETG, which is durable thanks to its UV resistance and dimensional stability (up to 80 °C).
