Thread: H alpha filters
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Old 15-11-2006, 06:42 AM
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iceman (Mike)
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Phil I don't see how that would work - the solar film cuts out all wavelengths except visible light, right? So adding a H-A filter at the EP isn't going to produce anything I would've thought?

The H-a solar filters need to be on the front of the scope, so that only the h-a wavelengths are passed through.

I could be wrong?
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