Thread: PST Solar 20th Feb. 2013
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Old 20-02-2013, 06:30 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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With the PST in Ha there should be no benefit of using an additional filter...The Ha bandwidth through the final blocking filter is only 0.7A....
monochromatic light......
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