Sunday night was a rude reminder of just how much the temperature of the 550D sensor impacts the amount of noise in my subs.
Everything was going beautifully on the night, guiding was great, no (significant) equipment problems, no clouds - but then getting home and looking at the data was not a happy experience. I think even my noise had noise.
I am not sure that it is worth trying to process it at all...
When I get home tonight, I will post some examples
Adam