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Hi, I,ve just recently purchased 4 pairs of the eclipse viewing glasses and have a question regarding their use.
I have a Bintel 300mm dob and the end cap that fits over the open end of the scope has a 60mm diametre hole with a small cap that fits over it. I'm thinking of making another cap with a hole in it the same size as the filter plastic in the eclipse specs and using this to view the sun.
My question is;
is it safe to do this? The only sunlight reaching the eyepiece will be thru the 40mm x 25mm lens of the eclipse specs.
can anyone help
Simon
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