OK. Some thoughts:
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Maybe it will be interesting to look at how Adobe’s Linear DNG format works. As far as I know it is similar to TIFF in the sense of being a pixel-data (demosaiced) file format, but it still doesn’t have WB applied to it. I used to work with this format in the past when I used PhotoAcute to combine files for the purpose of HDR or Super Resolution and wanted to stay in a format that allows me to tweak the WB later on
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.I was wondering if tone curve adjustments such as brightening an image, or recovering highlights or shadows, are more limited / noisier when applied to TIFF compared to a RAW file.
My experience with Lightroom is that when a RAW file is opened, the converter gives much more leeway for recovering highlights or brightening the shadows compared to when a TIFF file is opened. I thought that this is because when we deal with a RAW file, the converter can perform some of these adjustments as part of the demosicing process and this gives better results. Is it the same in Photoflow? is there any advantage to brightening an image using the exposure compensation setting in the RAW Developer layer, compared to keeping it at 0, exporting to TIFF, and then opening the TIFF and applying a tone curve to the TIFF that brightens the pixel data in a similar way?