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Old 26-06-2013, 09:15 AM
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PRejto (Peter)
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Join Date: Jan 2011
Location: Sydney, Australia
Posts: 1,296
Logan,

Have you looked at these?

http://www.sciencecenter.net/hutech/filters/ffilter.htm

I have an IDAS (not for a DSLR) and I think it works very well.

Peter
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