![]() Read and follow any instructions printed on or packaged with the filter.Īlways supervise children using solar filters. Refer to the American Astronomical Society (AAS) Reputable Vendors of Solar Filters & Viewers page for a list of manufacturers and authorized dealers of eclipse glasses and handheld solar viewers verified to be compliant with the ISO 12312-2 international safety standard for such products.Īlways inspect your solar filter before use if scratched or damaged, discard it. Homemade filters or ordinary sunglasses, even very dark ones, are not safe for looking at the sun they transmit thousands of times too much sunlight. ![]() The only safe way to look directly at the uneclipsed or partially eclipsed sun is through special-purpose solar filters, such as “eclipse glasses” (example shown at left) or hand-held solar viewers. ![]() Eclipse: Who? What? When? Where? and How?.
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