Originally posted by falconeye Unfortunately, tools like the ColorChecker use preregistered ISO colors which means, they cannot be used to make K-5 colors look like K10D's
What do you mean by that?
Are you referring to the values of the colour patches on the Color Checker?
Note that the DNG Profile Editor allows you to take any arbitrary colour and transform it to another colour (within limits). You can also use any arbitrary image to apply the transformations too.
I tried emulating the K100D with the K-5 II by tweaking the automatic adjustments generated by the chart calibration. I've only had very moderate success so far (with limited time spend on the effort).
I noticed that the automatic chart calibration does not appear to be able to pick the correct source colours for the patches for transformation. In several cases, when I tweaked the source colour, any colour transformations had a much higher impact on the target patch compared to the initial source colour. This suggests to me that the initial source colour was only overlapping with the patch colour, not sitting at its centre. Perhaps Adobe optimised the source colour and/or their recognition for certain other camera brands.
Another reason for my moderate success is also probably that ideally the transformation should occur at the tri-stimulus level, instead of a post-twisting of individual islands of colour areas.
Summarising, I feel that even with the ability to generate and tweak your own profiles that the initial colour filter choices for the sensor still play a significant role.
P.S.: It could very well be that the K100D colours are less accurate compared to the K-5 II colours. I did not investigate that. First, I don't care that much about accuracy but how much I like it. Second, I don't care much about how it looks like without changes, but more about to what I can take it to and how long it takes me till I'm satisfied. With respect to the latter, the K-5 II has been slightly frustrating to me. Maybe I need to upgrade from LR 3.6, but Adobe has not impressed me with their recent LR developments.