Quote:
Originally Posted by Peter Ward
Both images are a combination a deep Ha and RGB. What should happen...if the image is showing real flux...its Ha features should develop further with extended exposures regardless of the sensor.
Just the opposite is happening in some areas of these images. Hence I suspect
some sort of calibration artefact is being promoted as "real" when in fact it is just noise.
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I completely agree that there are big differences in some areas while in other areas there is a good match of the H-alpha nebulosity, which doesn't make any sense. It must be some dodgy use of masks in the processing of one of the images, I guess.