Over the past vew pages the bunch of you have just had the most beat-around-the-bushes discussion of Signal to Noise Ratio I've ever seen.
Can't someone find or come up with a simpler explanation of how SNR affects image quality that you can all agree on?
I think 100 was closest in his last post and could simply add that, sensor technology (e.g. pixel size, read noise, dark noise, etc.) being about equal, when printing or scaling to any given size, the greater surface area of a FF sensor allows more noise averaging to occur than the same image, shot with the same field of view, from a smaller sensor.