- Sun Film for Telescopes: Specifically designed for telescopes with diameters of 80mm to 250mm. The innovative metal pressure ring guarantees a secure fit without the need for glue or adhesives, ensuring ease of use. - Durable Construction: Crafted with a sturdy metal outer ring and pressure ring, this sun film is engineered to resist deformation, providing long-lasting performance. Built for regular use, it delivers reliable protection for your equipment. - Safe Solar Observation: Features a dual-sided silver solar film with a density of 5.0, effectively blocking harmful solar radiation. This ensures you can observe the sun safely without risking eye damage. - Versatile Applications: Ideal for a variety of optical devices, including cameras, binoculars, monoculars, astronomical telescopes, and bird-watching telescopes. A crucial accessory for anyone passionate about solar observation. - Essential Safety Precautions: Installing the sun film is vital before any solar observation to protect your eyesight from irreversible harm. Always inspect the film for light leaks prior to use, and discontinue if any leaks are detected. This sun film is the perfect solution for safe and effective solar observation, providing the necessary protection while enhancing your viewing experience.