Hello Alastair On 17-Jan-2011, Alastair M. Robinson wrote: >> Very sad :( > > You may have already thought of this, but as a workaround, you could use > spec2cie -n -f -i<illuminant> -o<observer> to create ti3 files with fwa > / illuminant / observer corrected XYZ values, then use those files with > average. Mmhh... sounds really a god trick, thanks, no I hadn't thought of it since I'm not skilled enough yet with all the argyll tools and their infinite possibilities :-) Bye! /&