Posted: Apr 19, 2012 3:09 am
Any of you Astronomy-savvy types know what type of solar filters are safe? They range from $$ - $$$, I'm wondering if the commercial $50-80 ones are safe for a small Dob?
Lifeboat for the rational mind :D
http://www.rationalskepticism.org/
http://www.rationalskepticism.org/viewtopic.php?p=1286592#p1286592