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Old 14th January 2009, 12:29 AM
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Argentum Argentum is offline
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Location: Sceptred Isle
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I tracked down a spectral chart for the 44A (it's upside down compared to most charts)

As Lee suggests, you would need a very strong CC Cyan filter as it looks like the 44A had complete cutoff of part of the red section of the spectrum.

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