Many thanks for your explanations, Bob. I will try to repeat your experience.
However I have a 16bit data output on my PGR Flea3 1,3Mpx GigE mono camera. In the reality they consist only about 11-12 bit data though. This may help.
My biggest issue is attempting to preserve the detail when converted to a jpg and re-sized to meet the CN file size limits, which reduces the image quality...
If you got a PhotoShop CS, then you can save your final pictures for CN limits as follow:
1. From the Save menu choose the "Save for Web".
2. Adjust the quality accordingly to meet the size limit requirement (200Kb).
If you save directly in PS or other graphical editor at the size 200Kb, then the CN forum will show
some artifacts. I believe, that "Save for Web" in PS has some special compressions which different forums engines like.
Hope this helps.