Originally posted by Svenneke What is remarkable is that on Windows 10, when I open such file in the standard viewer, it is also yellow, but not in RT or camera raw. Can you think of what reason this could have?
It depends on the codec. Most RAW image codecs simply extract the thumbnail JPEG packaged with the RAW for use in the file browser. This is done with
no RAW processing by Windows and for Pentax is the similar to extraction of a larger preview for is shown on the rear LCD. I will have to go back to my notes from a few years back, but if my memory is correct, the DNG for pixel shift packages the preview thumbnail JPEG for image #1 of the four component DNGs with no pixel shift processing having been done by the camera at all. A similar approach is used for the image viewer, only using one of the other JPEG preview images (there are several including one at full resolution).
Steve