If you plan to use protective glasses to view the upcoming solar eclipse, BEWARE. NASA has put out the word that some unscrupulous vendors are trying to make a quick buck by selling counterfeit or defective glasses.
NASA says eclipse viewing glasses and handheld solar viewers should meet all the following criteria:
- Have certification information with a designated ISO 12312-2 international standard
- Have the manufacturer’s name and address printed somewhere on the product
- Not be used if they are older than three years, or have scratched or wrinkled lenses
- Not use homemade filters or be substituted for with ordinary sunglasses — not even very dark ones — because they are not safe for looking directly at the Sun
The American Astronomical Society has verified that these five manufacturers are making eclipse glasses and handheld solar viewers that meet the ISO 12312-2 international standard for such products: American Paper Optics, Baader Planetarium (AstroSolar Silver/Gold film only), Rainbow Symphony, Thousand Oaks Optical, and TSE 17.
THIS IS NOT THE TIME TO LOOK FOR THE CHEAPEST BARGAIN! Follow NASA’s recommendations and protect your eyes.
ENJOY THE ECLIPSE ON MONDAY, AUGUST 21!