Hello there! I am sorry to be joining the list with such an unhelpful post, but I hope that can be forgiven. I have recently bought a used, rebadged Eye-one Pro spectrophotometer within an EFI package. The device is labelled "ES-1000" on the top, and is labelled as an eye-one UV cut REV C on the bottom. Upon testing with Argyll and other applications using the X-rite driver, it appeared that Argyll was giving significantly different results to the x-rite driver. Looking at the spectrums delivered by the two drivers showed that the spectrum was shifted a few nm towards the red in the Argyll driver. Delving into the .ti3 files showed that, despite the instrument being advertised as having 10nm bands (or 3 1/3 at least) the spectrum progression increased in intervals of slightly more than 10nm (10.3 nm?), resulting in a stretching of the spectrum. I am able to use colprof to create profiles, but only after manually editing the ti3 file, rendering spotread rather useless unfortunately. Is this a REV C issue? I notice than only REV A and D are tested. The header of a typical ti3 file went something like the following. It was produced by version 1.2.1, and was in standard resolution, non-adaptive mode. Hi-res mode produces very similar XYZ results, and so I presume is similarly skewed. CTI3 ORIGINATOR "Argyll dispread" CREATED "Mon Aug 30 09:54:25 2010" KEYWORD "COMP_GREY_STEPS" COMP_GREY_STEPS "49" KEYWORD "LUMINANCE_XYZ_CDM2" LUMINANCE_XYZ_CDM2 "150.261823 168.209616 170.958853" BEGIN_ARGYLL_COLPROF_ARGS -v -qm -aX END_ARGYLL_COLPROF_ARGS KEYWORD "SINGLE_DIM_STEPS" SINGLE_DIM_STEPS "20" DESCRIPTOR "Argyll Calibration Target chart information 3" KEYWORD "SPECTRAL_START_NM" SPECTRAL_START_NM "380.0" KEYWORD "SPECTRAL_END_NM" SPECTRAL_END_NM "740.0" KEYWORD "DEVICE_CLASS" DEVICE_CLASS "DISPLAY" KEYWORD "SPECTRAL_BANDS" SPECTRAL_BANDS "36" KEYWORD "COLOR_REP" COLOR_REP "RGB_XYZ" KEYWORD "SPEC_380" KEYWORD "SPEC_390" KEYWORD "SPEC_401" KEYWORD "SPEC_411" KEYWORD "SPEC_421" KEYWORD "SPEC_431" KEYWORD "SPEC_442" KEYWORD "SPEC_452" KEYWORD "SPEC_462" KEYWORD "SPEC_473" KEYWORD "SPEC_483" KEYWORD "SPEC_493" KEYWORD "SPEC_503" KEYWORD "SPEC_514" KEYWORD "SPEC_524" KEYWORD "SPEC_534" KEYWORD "SPEC_545" KEYWORD "SPEC_555" KEYWORD "SPEC_565" KEYWORD "SPEC_575" KEYWORD "SPEC_586" KEYWORD "SPEC_596" KEYWORD "SPEC_606" KEYWORD "SPEC_617" KEYWORD "SPEC_627" KEYWORD "SPEC_637" KEYWORD "SPEC_647" KEYWORD "SPEC_658" KEYWORD "SPEC_668" KEYWORD "SPEC_678" KEYWORD "SPEC_689" KEYWORD "SPEC_699" KEYWORD "SPEC_709" KEYWORD "SPEC_719" KEYWORD "SPEC_730" KEYWORD "SPEC_740" NUMBER_OF_FIELDS 43 Many thanks for your help, Sam Berry