Daystar filters, etreme narrow band solar observing

these are all of the great references that our users have shared with others.

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oldfrankland

Daystar filters, etreme narrow band solar observing

Post by oldfrankland » Tue Feb 21, 2012 8:49 pm

Lots of good info on extreme narrow band filters and solar observing:

http://www.daystarfilters.com/Quantum/QPEPaperPro.pdf

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