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Lense Strength

Hoenes

Hoenes

Member
Can't find the post from a few days ago, about the difference between a #10 lense and #14 lense. Answer was stated in "thousands" type of measurements.
Seems like 44000 came up for a #14, and a #10 was around 8000. (Family argument about strengths) need proof.
 
Well the eclipse just happened. It is now starting to get lighter. I used a welding helmet and some dark sun glasses and just took a couple of quick glances. It didn't get as dark as I thought it would. It was to be 97% here in northern Colo. I saw several planes go over following the eclipse. The temperature went from 85 degrees and has now fallen to 75.My solar panel voltage regulator completely shut down for about a half hour. It was a neat experience! Praise the Lord for the things He has made! Some of the small planes are now returning.
 
Thanks for all the quick responses. Got to prove the "beer crowd" wrong. #10 attenuation of light 4000. #14 373000!
 
So what makes the sun any more dangerous to look at during the eclipse than any other time of the year or day. I have looked at the sun before for a second. I don't stare at it. I did look at the eclipse with the welding lens yesterday. For just a second at a time.
 
(quoted from post at 07:32:24 08/22/17) So what makes the sun any more dangerous to look at during the eclipse than any other time of the year or day. I have looked at the sun before for a second. I don't stare at it. I did look at the eclipse with the welding lens yesterday. For just a second at a time.
Click to expand...
robably no sighted human on the planet that hasn't looked at the sun at least once in their life!
 
(quoted from post at 11:11:50 08/21/17) Can't find the post from a few days ago, about the difference between a #10 lense and #14 lense. Answer was stated in "thousands" type of measurements.
Seems like 44000 came up for a #14, and a #10 was around 8000. (Family argument about strengths) need proof.
Click to expand...

As I said in another post NASA recommended a #13 lens but, for my old eyes, I used a 14. :roll:
 
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