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Hi Phil
I tried and with an H alpha and the Baader Astrosolar ND 3.8 and it didn't really work. The image on the notebook was quite poor; it looked very tonally compressed and not as good as without the filter.
I then clicked colour mode and the image turned red as expected, but again, not as good as the B&W without the H alpha. I'll see if I kept some of the experimental avi's, although a nagging thought tells me I deleted them. Oh, and there were no filaments or prominences - not even a hint of them.
Cheers
Dennis
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