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Greg,
Your photos are superb and if I could get stars like yours I'd be quite happy.
Now, I believe that your Astrodon filter cuts at 400 nm, but the Baader I am using cuts at 380 nm. I use Astronomiks on my G2-8300 and I get good results in blue with that camera. I put that more to the chips QE in blue than to the particular cut off of the blue filter.
A friend loaned me an Astrodon blue filter last night. It produced slightly tighter blue stars than the Baader. But, not good enough to satisfy me. Adding the Hutech IDAS significantly helped as it cuts at 410 nm. Both filters showed improvement with the IDAS. A bit more cutting and I think I will be there.
Peter
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