OK, so again I ask in what way is Calman producing better results than Chromapure? The rest is just rhetoric (my HFCR comment was just a little joke BTW ). However, I think in fairness to this being the Chromapure thread, it would be better to create a fresh thread to compare the two such this be done.It is a fact that the software is now the determining factor of the cube calibration, wereas previously it was the skill of the calibrator.
In my opinion, CalMAN produces better results and has more customization options for those targets. I'm willing to post hard data to back that opinion up. CalMAN and Chromapures results should be able to be cross checked with each other, no need for HCFR.
The point, Tom, is precisely that gamma may vary over the dynamic range of individual colors. The question is how much better is it to use the 125 point system than to use a 6 point system. As Joel pointed out, this would vary with displays. I would like to see the difference between a 6 point calibration and the 125 point calibration, with the data on the points not calibrated from the 6 point method compared to the adjustments that the 125 point system makes. A measure of variance across the points on each color might be meaningful. It would demonstrate the value, if significant, of the 125 point system, and/or be a measure of color accuracy (or lack thereof) in a display.
I'm not sure if you are aware, but Chromapure can perform the 125 point calibration as well, not just a 6 point one. My apologies if I've misunderstood your post, but I read it that you don't realise this.