Quote:
Originally Posted by Andy01
For my 2c worth it's simply a matter of what looks best aesthetically- unless you're trying to match an image from the Hubble, in which case take onboard all of the scientific knowledge available and lay your colour cards on the table!
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When it comes to actual science, the images aren't pretty. RAW files are calibrated (Bias, Flat and Dark) and that's it. No other modifications can be done because anything else manipulates the pixel intensities. Flats also become pretty much the most important calibration frame because pixel to pixel sensitivity variations can cause real havoc :-)