[NewHampshireDuo]

Is eye damage an issue for viewing a non-total eclipse? Like 70-80%?

I'm an amateur astronomer that specializes in solar observation. If you can see any of the sun's disk, even 1%, you need to wear approved (ISO certified) eclipse glasses or use a #14 welders glass. It's not just the visible light that gets you, it's the UV and IR. Don't risk your eyesight for the sake of saving $2.00 on a pair of glasses.

I'll be in northern Maine where the expected cloud cover is the worst of the entire path.

[TangoLimaSierra]

If you can see any of the sun's disk, even 1%, you need to wear approved (ISO certified) eclipse glasses or use a #14 welders glass.

So, my paper 3-D glasses will be sufficient, right?

[cyclotic]

For the last event, my son had the absolute best view of anyone on earth of the sun and he missed the eclipse. He works at NASA. At the time, he was a data technician working with the SOHO solar observation satellite and was shooting pictures of the sun. The satellite is about 1,000,000 miles past teh moon, so there was no eclipse for him.

[telescope115]

AMEN to everything you said! I won’t be traveling to a totality area, but I will be looking at it thru my Herschel wedge.

[Bloody Sam Roberts]

Thanks! I knew that the UV was the issue. But couldn't recall if it was for total or partials.

Given that I have retina issues to start with, I'll opt for the ol' pinhole-on-cardboard-projection-to-white-paper thingy. If the weather cooperates, that is.

[kjam22]

NASA says #12 welding hood