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1600ISO, I figure a lower ISO just lowers gain needing longer exposures and then more thermal noise pops out. I posted in a previous reply I saw data in the GB channels, until I found the Ha filter wasnt in, very annoying, now there is next to nothing in GB (makes sense now).
No its not cooled, im not looking to try that mod myself again.
I processed all the subs as default RGB in IP (saved as FIT) until PS import with fits liberator, with which I just selected pane 1 (red).
I think everythings OK, I just need to try some other stuff, this pic was just a guess. It took me a while to get going with a CCD, so Im expecting the same with the 40D. Ive done all this before with a 300D, but not with Ha, I just need to tweak a few things.
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