First of all: This is is only a cheap camera (Olympus E-PL1) for absolutely casual purposes, not even enthusiast hobby photographing task. But you know... if you have some knowledge about color management and you have a spectro at home you start thinking whenever you need to work with colors. :) So, when I happened to pick up relatively decent camera tomorrow, I started to think about the possibilities of some kind of calibration. Again, I am not an enthusiast hobby photographer, so hard-printed 300$ calibration charts are out of question... But what if I use an emissive display device to take some shoots and also use a spectrophotometer to get the spectral distribution of the captured colors...? I searched a bit with google and found this: http://art-si.org/PDFs/Metric/AIC05_Rosen.pdf They say they realized some kind of improvement in almost every scenarios (even with uncalibrated displays). They used an LCD, but I happened to have a PDP display which is more evenly saturated than most of the LCDs. But I also have a LED LCD with narrow gamut, so it would also be possible to capture colors from displays with very different spectral characteristics (in case that could help...) I think I managed to fully understand the characterization process of output deices by now, but I can't tell the same about the input devices (I have some idea about it, but there is a little hole there). If I think about my RGB camera as a tri-stimulus colorimeter then I realize that one matrix profile if valid for one given spectral behavior. But what about these new X-Rite i1d3 colorimeters with spectral sensitivity curves and on-the-fly created corrections? Can we do the same with a camera? Let's say I use a PDP display to capture and measure some patches and then I use my spectro with the ambient light diffuser to measure the lighting conditions and then create a matrix profile for those light conditions. But I am not sure if some measurement from a display is enough to spectrally characterize an input device, even if I can use different type of displays with various spectra... And what about the tools...? I guess it would require a new software (like a new ArgyllCMS tool :D). After all, I would ask these questions: - Did any of you tried this? - Does anybody have a test chart for this? - If I create a test chart (for a simple matrix profile with assumed linear response in RAW mode) then should I use RGBW only or should I add CMY as well? Does colprof really benefit from CMY measurements when I use an RGB device as a light source and I create an RGB matrix profile? - Should I blur the camera shot with wrong lens focus to even out the RGB sub-pixels and the dithering patter of the display device as more homogeneous patches? - Do you thin it would worth a try? (If I need to learn how to create ArgyllCMS compatible test charts...)