Ingo, I assure I have not tampered the data in anyway and I am sure Wayne Cosshall didn't either. The difference was so clear between the 2 cameras I rechecked several times.
I just downloaded your image and clearly the white areas of the image have more noise than the shadow areas! The other comments suggest you have limited experience processing astronomical images...I think you are being a bit quick using the
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I think people want to know what to buy in a DSLR and many people on this list are obviously will weigh in performance in astrophotography. This is an important decision for many of us as it is a bit of an outlay.
BTW for various reasons I am not overly impressed with Canon as a company at the moment and am thinking of dumping all my Canon gear and buying an SBIG camera instead
. So I have no motives to defend Canon, just like to state the facts.
Terry