[vcf-midatlantic] OT: Solar Eclipse sunglasses -- legit, better and still cheap
ragooman at gmail.com
Fri Aug 18 13:05:02 EDT 2017
On Fri, Aug 18, 2017 at 12:48 PM, Herb Johnson via vcf-midatlantic <
vcf-midatlantic at 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....
> 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
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