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I have used Baader, Astronomik and Astrodon Gen 1 and 11. Astrodon Gen 11 I find the best, then Astronomik and then Baader. Baader are strong in red and I had some problems with colour combine. Perhaps it was my technique and today I could probably handle them. I still have them both.
Astrodon though are the most expensive. Astronomik are most economical. I'd get them but make sure your filter wheel can handle the thin 1mm thick Astronomiks. My FLI could not and I damaged some as a result. Gert took a while to provide a spacer for them. But he came through in the end.
Greg.
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