If I crop a RAW file in Photolab and export as dng

does the dng still have all the positive aspects of a true RAW file?

I would like that to be true, but I am not sure how the conversion in Photolab from a RAW file (which is not an image file) to a croppable image, can then be a RAW file again.

Thanks for any insight.

As far as I understand, the DNG file will be “demosaicked”, so no longer a RAW file as it is no longer a “sensor dump”, but it should be in the original colour space of the camera and therefore include the extra dynamic range and free selection of white balance.

@Mangurian1

The exported ‘RAW’ file is a linear DNG. Hopefully the attached link may provide the answers!

(What are Linear DNG files? How do you use them? - DxO)

@mrcrustacean @MSmithy
Maybe this what DxO should focus on only : pureraw.
Since putting photolab at a real higher level is perhaps an unrealistic task given the resources required compared to the potential financial gains it can generate.

Thank you,
I read the article and it makes sense.

@Mangurian1

Harry,

I am just curious why you are processing RAW files in PhotoLab, and exporting the results as linear DNGs? PhotoLab is a fully featured non-destructive photo editing software, and you would normally export your finished image as a JPEG or TIFF.

If you have no intention of editing your images in PhotoLab, then PureRAW would be the better option. PureRAW gives you the benefits of DxO’s RAW engine, lens correction & noise reduction. PureRAW can export linear DNGs: which from personal experience can be edited without issue in Lightroom Classic & Affinity Photo 2.

Patrick

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a quick test reveals that an image cropped to portrait orientation in DPL and exported as DNG will display in its original landscape aspect ratio in e.g. Finder or Lightroom.

Other than that, I can do, with the DNG as I can with the original RAW, but I have to be careful about not applying corrections again. E.g. the exported file has compensated distortions…and the receiving app can still apply the same corrections again.

Just make sure that you always use the same settings to avoid overcorrections.

Strange. That means that the original image was written to DNG .
Different with windows. Written is the new image, also in JPG and TIF. Correct shown in PL and IrfanView.

George

The OP asked for DNG output…and that is where things like crop can be lost, if the default DNG settings are used.

In order to preserve the crop, “all corrections” need to be included, but according to some feedback I got from DxO, this is not really recommended. It can cause issues with saturated colours that will go bonkers in e.g. Lightroom (the reason for a ticket and the answer mentioned)

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That’s what I wrote. The new orientation is used when I open theDNG in PL or IrfanView.
And additional also the JPG and TIFF.

George

It all depends on how the export dialog is set.

Loose crop settings and others

Preserve crop settings and others

I forgot that one.

George

I think there are plenty of loyal and supportive users its the expectations that need to be managed better, that’s all. DXO does not need a lot, but they could seriously benefit, like most companies from better expectations managed of their customers, especially the most loyal ones.