Quote:
Originally Posted by blink138
ok so i can do the darks anytime just hook the ccd into the computer, fire up the TEC and voila get darks, no focus
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Yes you don't even need a scope. Cap the camera facing down and let it shoot all night. I do that in my living room indoors over a couple of nights.
Quote:
Originally Posted by blink138
marc how do you scale darks down from 20 mins to match a different exposure, this is great!
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I use CCD Stack to calibrate all my subs and it does that automatically. I'd say every other software has a way of achieving the same thing. You can scale a 20min dark down to calibrate any sub up to 20min exposure but you cannot calibrate a 30min sub with a 20min dark because in a 30min sub it is likely more hot pixels and defects will appear than in a 20min exposure. So there will be things in a 30min dark that are not in a 20min dark if that makes sense.