On 02.04.2012 09:55, Graeme Gill wrote: > Andreas F.X. Siegert wrote: >> But the diag.tif shows the overlay a bit askew (on perfectly level pic of >> the color chart) > > Sorry, that doesn't really describe the situation at all clearly. > > Is the .tiff & reference file available somewhere ? http://afximages.com/tmp/argyll/ I think I got fooled by the exposure because of the background. But even if I push the exposure before generating the linear tiff I get the overexposed patches. thx afx -- http://afximages.com/