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Prawn is 1 hour 20 minutes, 16x5min subs, ISO 400. (the original image looks much better than the compressed one above too). I'll do the other two images sometime too, keen to see how Liberty turns out.
I also figured out how to combine two channels which is handy for an image of Sh 308 I took with an OIII filter. The red channel had heaps of noise and no signal so it was discarded. The image isn't worth posting as I only have 50 minutes worth of subs.
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