AstroSolar® Safety Film 5.0 – 20 x 29 cm (Telescope Quality)

AstroSolar® Safety Film 5.0 is the gold standard for safe solar observation and high-magnification imaging. Designed specifically for telescopes, binoculars, and camera lenses, this premium film provides optical density (OD) 5.0 protection, making it completely safe for direct visual observation (when used with appropriate mounting) and solar photography.

Unlike other solar filters, AstroSolar® is engineered not to degrade the optical wavefront. It delivers exceptional image sharpness and contrast, with interferometric tests confirming Strehl ratios of 94–96%—equivalent to the performance of high-end fluorite triplet lenses from Carl Zeiss and Astro-Physics.

With over 25 years of proven reliability, this 20 x 29 cm sheet is ideal for custom solar filters on any long-range optical instrument. Whether you're observing sunspots or capturing detailed images of the solar surface, AstroSolar® ensures unparalleled clarity and safety.