Solar filters are specialized materials designed to reduce the intensity of sunlight, making it safe to observe the Sun directly. They are commonly used in solar telescopes, binoculars, and cameras to protect the eyes and equipment from harmful solar radiation. These filters can block out harmful ultraviolet (UV) and infrared (IR) light while allowing visible light to pass through. There are different types of solar filters, including glass and film options. Glass filters are often more durable, while film filters are lightweight and portable. It's essential to use proper solar filters to prevent serious eye damage or equipment failure when observing solar events like solar eclipses.