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Showing results for tags 'solar filter'.
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I'd like to find a good solar filter that is not too expensive (<$150), which can be used to view not only transits, but also see features like sunspots and maybe granulation. So far I've found these: $173.51 $145.00 $129 $89.95 (this one seems perfect but is apparently discontinued. ) $89.00 (this one also seems perfect but the big "Pending Delivery" makes me think it would be a while...) Any advice? P.S. I'd like to have it before the May 9 transit, if it's possible. I've now bought a sheet of solar film, and am waiting for it to arrive in the mail. The film arrived this morning, and I've assembled a cover with it. The filter I made with the film works well for viewing sunspots, and cost me less than $50! Yay cardboard!
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