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Ok, I've been researching Ha filters to see what's available and there are ones from Baader, Astrodon, Lumicon that aren't badly priced. However, there seems to be conflicting information as to where these filters could/should be used.
One retailer of Lumicon filters states that the Lumicon Ha filter is only for night sky use and should not be used for solar photography. Is this just a precautionary statement, or are these the correct type of filter to use, but clearly with a general sun blocking filter?
Cheers
Ray
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