Andrew asks: "If I measure the illuminant and the scene, then I measure something in the scene, then reproduce those identical colors onto some device, is that colorimetric accuracy?" You ask a great question and I have to ask: Are you not MEASURING the reproduction? In the past you have used dE as both a sword and a shield. So, my question is this: Is the weight to go to machine- measured colorimetry or perception? It seems to me that your position has evolved over the years to a place that's undefined. You seem to want it both ways - which I believe is also true of the ICC initiative from the get-go. So, which is it? How is color accuracy now defined a la Andrew? Henry