Roger Breton wrote: Hello Roger, > I have both a ColorMunki and an EyeOnePro here. Maybe you can guide me in > some comparative testing for you? I'm kind of busy these days but I can give > it a try... thanks for this very kind offer! I will come back to you, when the fog has lifted somewhat, and I know what question/test could be really of help. > BTW, I am no video engineer but, sometimes, I wonder to what extent is the > 110V/220V input voltage fluctuation could influence the monitor emitted > light? Crazy idea, I know. The internal electronics is working with a lower stabilized d.c. voltage, so I don't think fluctuations of the input voltage could be of relevance here, like with e.g. a conventional light bulb. >... > Black level going up, anything below 1 cd/m2 measured with these > "affordable" instruments (i1pro, Munki, DTP92), is to be taken with a grain > of salt, IMO. These instruments are never sensitive enough to measure such > low light levels with any precision or accuracy. I have to admit I had higher expectations for this "affordable" price tag, and an instrument delivering four digits behind the decimal point suggests some underlying precision to the clueless. With a little deeper insight I understand now that absolute precision of the measurement is generally a big problem, but I would still hope for less drift and more predictability. Regards, Juergen