Re:Amazon recalls eclipse glasses
by piva00 on Monday August 14, 2017 @06:53AM
(#15007769)
Welder's mask (specifically a number 14 filter) is one of the recommended ways to safely watch an eclipse :)
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Shade 14 is key, as common welding Masks are only Shade 5 and still cause eye damage if used
Re:Amazon recalls eclipse glasses
by convolvatron on Monday August 14, 2017 @12:19PM
(#15009836)
to be clear gas welding masks are 5, its more like wearing sunglasses.
arc welding gear is generally around 10-11.
many newer electronic helmets go up to 13/14 which is enough, you have to remember to turn up the sensitivity on the sensors so that its always dark. otherwise it will stay open at around 3-4