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Which LRGB filters?
Struggling to find which would be the best LRGB filter set to buy. I'm after something with no halos and suitable for use with a highly-sensitive CCD coupled with a refractor.
Astrodon, Astronomik and Baader all allege zero halos, but in every case I can find examples of images with halos. Tricky part is that some of the photos might have been taken with older versions of the filters, I'm not sure.
I'm happy to pay for the Astrodons if they give me no halos and the others will, but I definitely don't want to fork out the money and find that I get them.
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