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Subject: Re: ACR Calibration



nunatak, I think your distinction between the data and the process is key here.

Presumably the profile used by ACR is the same as the profile held in a DNG file. We know what the formats of the latter is. (Transformation matrices that convert between CIE XYZ values and reference camera native color space values). And, for any particular camera model, it would be possible to examine a DNG file and see what the profile values actually are in that case.

So what appears to be lacking is a description of what Adobe do, from when they obtain suitable camera(s), to generate those transformation matrices. How much does it matter that we don't have this information?

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