I take underwater pictures under natural (blue-green) light with a Sony A7 IV using manual white balance. The results look “as shot” in Sony’s EDIT Raw editor. Same is true when I import the raws (ARW) directly into Lightroom with Develop Stettings = “None” in the import interface.
PureRaw displays the thumbnail of deep water pictures with manual white balance “as shot”, but only for a fraction of a second, before they turn purplish. This unnatural-looking color profile is subsequently transferred to the exported DNG. In Lightroom, the same purplish appearance arises when I explicitly set Develop Settings to “Camera Settings” during RAW import. At least it gives me a choice, so I select “None”.
My request: Please add a switch to the PureRaw preferences that allows users to select between “none” or “camera” for color correction (or a list). For now, I have no other choice than to use LightRoom for processing and denoising my deep water pictures.
The screenshot shows a picture taken at 20 m depth with manual white balance. Top: original RAW as shown by in Sony’s EDIT. Bottom left: direct-import as RAW in Lightroom with Develop Settings “None”. Bottom right: DNG denoised by PureRaw and imported in LightRoom.
here is ARW denoised by DxO PL ( sorry, but pOOrRaW is obviously too limited for a discerning connoisseur ) into DNG and ( that DNG ) opened in Adobe Camera Raw (ACR) - not sure what is the matter in your use case - it all looks OK to me ? I hope you are feeding Adobe with linear DNGs ( NR+optics corrections only ) ?
I opened it in FastRawViewer and its a bit purple there. Think it looks right at first from the embedded jpeg. Exifreader didn’t like the exif data so may be a problem there. Open in Capture One and it seems to be a white balance problem. Its “Underwater” white balance makes it blue. Even “Daylight” white balance looks blue. Same in PhotoLab. Is there an underwater color checker?
Checked the file and found that PureRAW exports come up with mixed results as seen im Lightroom 12 on macOS Monterey
Export to JPEG and TIFF present themselves with the magenta haze we see above
Export to DNG looks like the original file
Adjusting the magenta image to make it resemble the ARW and DNG images takes more effort than what I’d be ready to invest, specially in view of the fact that the DNG export looks fine and provides all the possibilities for edits that the ARW does.
PhotoLab shows the ARW, DNG and TIFF images with the magenta haze, it looks like DxO’s standard rendering has difficulties with your underwater photo, @NKMichiels. This is not up to the quality level I expect from DxO and therefore propose you get in touch witch support.dxo.com.
if DxO bothers to follow DNG standard then using custom DCP profile with modified CM matrices to bring WB sliders in range shall work - but then of course it is only if DxO bothers … one might experiment.
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