Hi Mike,
what a stunning picture! You know how to do!
This weekend I was at the Central European Deepsky Imaging Conference in Linz/Austria. Don Goldman was there too. With some friends I had discussions about filters, Astrodon vs. Baader vs. Astronomik and so on. I use Astronomik filters and it is always a pleasure to see your results. One goal for Astronomik
Cheers
Werner