Originally Posted by zoyd
CMS won't affect gamma but white balance controls might depending on what you change. It looks like all you need to do is tweak the blue gain and bias and that won't move the gamma response.
For RGB balance you need to use the white balance controls as these affect the neutral axis only. Get that correct before moving on to the CMS, that will help your secondary hue values as well. The CMS controls are used for hue, saturation, and color luminance (not RGB balance).
Thanks for the advice zoyd. It worked like a charm! I tweaked the Blue Gain and IREs in the White Balance menu, and the RGB and CIE diagrams look much better now. Oddly enough, although my Gamma curve did not change by those tweaks, the target curve (BT.1886) moved from being quite close to my Gamma curve to not so close any more! Why does that happen? Am I supposed to match my calibration to a moving target?!
Anyway, I have another question:
To do this calibration, I have borrowed my friend's Spyder4 and used the latest HCFR with Argyll drivers. I have to say it works very well.
However, I have been considering for more than a year now buying a i1 Display Pro for the same job. Every time I am about to shell out the cash, I use my friend's Spyder4 to achieve very good dEs for grayscale and colour and postpone the purchase. My question is, is it worth spending ~€190 (here in Europe) for a i1 Display Pro, after having done the calibration with the Spyder? Will I notice the difference? People say the i1 is more accurate at the low-luminosity end. But for that price, and the fact that I will probably only use it once a year, will it pay off?