Do I need a dew shield for my telescope?
Whether you need a dew shield for your telescope depends on the environment you are using it in. If you plan to take photographs in moist or cold climates, a dew shield is recommended to protect your imaging equipment from condensation. A dew shield can help to extend the time you can use your telescope by keeping warm air away from the optics and reducing heat loss. For areas with high humidity or low temperatures, a dew shield can be a great tool to ensure crystal-clear images and long observing sessions.