Summary: Are your solar eclipse glasses safe for seeing sunspots during the day? This video shows three ways to check how effective your solar eclipse glasses are at blocking enough light for safe use. As always, it comes down to making a personal safety decision. I hope this video helps. Have a great eclipse day!
#sunspots #glasses #solarstorms #reflactorguy

ECLIPSE VIDEOS:
Part 1 - How To Test If Your Solar Eclipse Glasses Are Safe: [ Ссылка ]
Part 2 - Testing for UV light transmission: [ Ссылка ]
Part 3 - Use a POOL BALL to see the Sun: [ Ссылка ]

Pinned comment:
"Nicely done! As the ISO Project Leader for the ISO 12312-2 standard, I can say that you have presented the easiest ways for people to check out their solar eclipse glasses/viewers. The reason we have a range of luminous transmittances is to allow for variation in the density of the filter materials when they are manufactured. The upper limit ensures that the filters don't let through too much light, while the lower limit ensures that you can always use the filters to look at the Sun in most viewing conditions except at sunrise or sunset. Thanks for making this video!"

ISO 12312-2 Standards Description:
[ Ссылка ]

American Astronomical Society Approved List Of Manufacturers:
[ Ссылка ]

Report on solar retinopathy injuries following solar eclipse events:
[ Ссылка ]

COMMUNITY GUIDELINE NOTES FOR YOUTUBE AUTOMATED DETECTION SYSTEM:
1) This video fully complies with the YouTube Community Guidelines and Terms of Service.
2) Soundtrack used with permission from my video editing software, Camtasia.
3) VINE BOOM sound effect used under PAID license from Bluezone Corporation.
4) SCREAM sound effect used with permission under CC0 license: S38-01 Man eaten by alligator; screams [Wilhelm screams].wav by craigsmith -- [ Ссылка ] -- License: Creative Commons 0
5) This video contains no paid or donated materials/endorsements.
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FALSE POSITIVE?
Your camera flash may be brighter than mine, leading to a false positive (i.e. bad glasses)... so here is an alternative test. Go outside on a sunny day, face away from the sun, and look at the horizon (away from the sun) with your glasses. My questionable ones show clouds, houses, trees, the ground, etc. The good pair of glasses shows almost nothing. With good solar eclipse glasses, looking at the Sun should be as comfortable as looking at the Full Moon (according to the AAS).

ARE YOUR GLASSES NOT ON THE LIST?
What if your eclipse glasses brand is not on the AAS.org list? Are they fake? Not necessarily. That doesn't completely rule them out. It may mean that they missed the AAS cutoff date last month. However, as the AAS website implies, with two eclipses six months apart, any company that isn't on their approved list by now wasn't trying very hard. As in all of life, there will always be special circumstances.

Pinned comment:
"Nicely done! As the ISO Project Leader for the ISO 12312-2 standard, I can say that you have presented the easiest ways for people to check out their solar eclipse glasses/viewers. The reason we have a range of luminous transmittances is to allow for variation in the density of the filter materials when they are manufactured. The upper limit ensures that the filters don't let through too much light, while the lower limit ensures that you can always use the filters to look at the Sun in most viewing conditions except at sunrise or sunset. Thanks for making this video!"

Summary: In this video, I show you three ways to qualitatively tell if your glasses are safe or not, including the AAS list of approved manufacturers. How to know if your solar eclipse glasses are likely safe.

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