Hi everybody, I was quickly reading the "Displays with internal gamut emulation" thread. From what I understood (I'm not a class A english reader, sorry), Janos doesn't recommend colorimeters for wide gamut displays. But I don't get the point. Here is what I thought: Colorimeters are better for displays. Unlike printed paper, displays have deep blacks. Spectrocolorimeters are weak on low luminance measurement cause they have narrow spectral bandwith, unlike colorimeters. Every display models I heard of (form simplest to most complicated) are colorimetry based. If you capture spectral datas form a display, it will be converted to color datas using CIE tristimulus to build a model. Applying cie tristimulus on spectral datas from emissiv measurement are the same as using filters (like those on a colorimeter, for a determined CIE tristimulus). Spectrocolorimeters might miss spectral peaks (like those found on CRT red primaries, fluo and led LCD backlight) depending their spectral bandwith and overlap. Spectrocolorimeters are better for printer. Some printers models are based on Neugebauer primaries or other multispectral model, computed form spectral datas. Spectral measurement allow far better computed different lightsource emulations than using chromatic adaptation transform from colorimetric datas. In this way, color inconstancy might be better neutralised. Spectral measurment allow FWA caracterization. Correct me if I'm wrong or if I missed something, please. Thanks, Matthieu DUBAIL www.presse-bouton.com