Mathieu GRENET wrote: > I extracted white full spectral and the led one is very different than the > two others so I > presume that lab calculation by the instrument may be wrong. Hi, it would help if you could mail me a .sp file (measure using spotread in high res-mode: "spotread -e -H" measure and then use the 's' command to save it). It looks like it is a wide gamut display, so it's possible that it's not a problem with the instrument. The spectrum should give a clue. Graeme Gill.