Making Some Noise: If there's noise in a photo, JPEG compression will bake it in. Thus, the advantage of shooting RAW and then converting it to JPEG is that you can take out the noise during the conversionb before baking it into JPEG, as well as taking advantage of the additional info in a RAW file. Quite by accident, I happened to compare two RAW conversions, one from Adobe Camera Raw and the other from DXO PhotoLab 4. The results were interesting. First up is the JPEG that came out of the Adobe conversion. Next I took the same RAW file into DXO PhotoLab 4. See what it produced. Some difference. You could, of course, perform further noise reduction with a filter like Topaz DeNoise AI but why not get it done in the conversion? With a little adjustment, I could probably set DXO to do a little better but you don't want to get carried away lest the photo look flat. What I was doing in the first place was testing different camera mode settings to see which captured the most clear picture of a car speeding by while the lens was zoomed out.