Thread: IR Blocking filters: Do I need one?
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Old 12-01-2017, 12:05 PM
Star Hunter
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Star Hunter is offline 		 
Join Date: Dec 2011
Location: Ellesmere, Qld
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IR Blocking filters: Do I need one?
I'm getting a new ZWO 071 CCD next week for a 11" RASA and been reading one needs a Luminance IR blocking filter to block any IR from interfering with Ha regions. Is this right?

Jim
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