Hello, I'm trying to make single shot measures, with the 'spotread' utility and my X-Rite DTP92, but I always get the same values : Result is XYZ: -0.000000 -1.997025 -0.000000, D50 Lab: -18.039055 77.754547 -31.101819 Wy ? -- Frédéric http://www.gbiloba.org