On Fri, Aug 18, 2017 at 12:48 PM, Herb Johnson via vcf-midatlantic < vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
I was an amateur astronomer. I advise against the referenced Harbor Freight goggles. Here's reliable information about Welder's glass. - Herb
https://www.harborfreight.com/ etc.
Set comes with both flip front and permanent #10 lens....
https://www.space.com/36941-solar-eclipse-eye-protection-guide.html
Welding goggles
quote from Rick Fienberg, press officer for the American Astronomical Society (AAS), said
"There is a particular circumstance in which [welding goggles are] safe," Fienberg said. "We don't recommend it because it's too easy to get the wrong kind of welding filter." Only goggles made for electric arc welding can be used to observe the sun, and they must have a shade scale number of 12 or higher. Shade 13 is ideal for solar viewing, but that shade is typically not sold in stores, Fienberg added.
I can find Shade# 14 an Amazon too