EXCERPT page containing first few paragraphs. 2019-04-23 02:01:39
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See also the dolls example, which confirms the findings here.
UPDATE 13 May 2016: This is what I heard from Adobe: “Known issue. It is fixed in the next ACR update. High ISO dngs shots with super resolution”. That sounds good, but both my examples are at ISO 100, the lowest available ISO.
SuperRes pixel shift mode (“SR-PSM”) merges 4 exposures into one raw file. The raw converter must then take those 4 exposures and (somehow) create an RGB pixel for each pixel in the image.
It might be assumed that a StdRes image and SuperRes image would have the same color behavior, but this is demonstrably not so, at least for Pentax K1 SuperRes mode processed with Adobe Camera Raw 9.5.1 (595). Similar discrepencies were found with the Pentax K3 II, but not investigated. Possible causes include:
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