I have played a lot with the different gamut tools from argyll recently. I was little shocked when found out that the printer profile I had with largest gamut for my Epson R2400, was one produced with eye-one match "easy rgb 1.2" chart. That is a small 45 patch chart. Output from iccgam -v is Total volume of gamut is 764113.519232 cubic colorspace units The one produced by Epson for the same Premium Luster paper is 749007 A typical 1000 patch rgb profile that I have created myself is 723600 And if I process the "easy rgb" target in Argyll I end up with 595777 And a similar sized target (45 patches) created in Argyll gives me 612517 Question is : Can I trust these values? I have made a wrml file showing the easy target processed in eye-one match against the same measurement file processed in Argyll here. http://www.mulebakken.net/div/small-argyll-match.wrl Argyll is the color one. Regards Lars Tore Gustavsen