Hello all, I am using Argyll to generate an input profile for a Hasselblad camera using a ColorChecker SG chart. In the past I've obtained good results with options -qm -am -u, but recently I am getting errors of >70 and average >17, whereas if I eliminate those options the error is <20 and average <2. What might account for this huge discrepancy, considering that the -am and -u options seem to be recommended for digital camera input profiles in the documentation. By the way, colprof runs much more quickly invoking the options. Thank you for any insight, Alex