P: Lens profile lost after DNG export

[apavlin]

Hello! After updating to 11.4, when I export to DNG, it loses the lens profile, after importing such a file to another computer, or even again in my Lightroom, there are no Panasonic profiles at all. Rolled back to 11.3.1 and it works fine. Any ideas how to fix it or is it a bug in the new version?

[thedigitaldog]

Can't replicate on my Mac, the latest version. Exported a DNG with lens profile as another DNG, imported, the profile was there. Maybe a Windows bug but fine on Mac.

[DdeGannes]

The first screen capture shows the Panasonic profile (and indicates “Camera settings”) did that get applied automatically? Did you export the raw image as a DNG after the lens profile was applied?

The second image ( I presume the DNG) indicates that a built-in lens profile was applied. Very strange. This is evident as the obvious distortion is displayed in the second screen capture.

Is it possible to share a raw image file that shows this problem via Dropbox or similar so other users can check what you are experiencing?

[DdeGannes]

In addition the List of Supported lenses available from Adobe in LrC 11.4 does not contain any Panasonic lenses. So the profile applied is contained in the Original Raw image file. It appears it did not get included in the DNG file.

There is at one other issue with converting to DNG using LrC 11.4.

[apavlin]

Yes, if "enable profile corrections" is checked and set to auto or default, so the right panasonic profile is applied automaticaly to raw image. Then, if I export raw image as a DNG and import, it loose the profile. 

I´ve uploaded this raw + xmp (with my corrections applied)
https://drive.google.com/drive/folders/1-AsC8FxDo2g-teuEebXF1OEAeVjVO7Kf?usp=sharing

Could be great if you can check it. 

[DdeGannes]

I will download and have a look. I have also posted some new info.

[DdeGannes]

Ok I can confirm exactly what you are experiencing.

The Lens profile supplied in the camera setting is not carried into the DNG file and is therefore not applied.

I would advise that you create a bug report in the appropriate section of the forum where I would be pleased to add my support.

This is happening on my laptop PC windows 11, with the latest update, I am on vacation so do not have access to my iMac to test.

[thedigitaldog]

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@DdeGannes wrote:

Ok I can confirm exactly what you are experiencing.

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On Windows? Because I can't replicate with my own images on Mac. Maybe the OP can upload his DNG for testing on Mac. 

[DdeGannes]

A aparent work around. Select the DNG in file in Library module and go to the menu bar Metadata > read metadata from the file, the distortion correct appears to get corrected but the lens info does not display.

Not something I would be happy with, this need to be attended to ASAP if the integrity of the DNG file function is to be preserved.

The barrel distortion of the DNG has been corrected.

[DdeGannes]

At, thedigitaldog I am only now seeing your post. Yes I checked on my Win PC as indicating in a subsiquent post. The author has supplied a raw file and xmp sidecar.

Some additional indpfo, the camera used is a Panasonic mini 4/3 body and the Lens Correction is in the raw file so it gets applied automatically at import. Adobe does not offer any lens profiles for mini four thirds lenses for Panasonic or Olympus cameras so that is why he is not seeing the lens in the List of supported lenses in LrC.

You will see some further info in my last post.

Just to confirm I imported the raw file supplied then exported as a DNG and experienced the same problem. I did not import using copy as DNG.

[DdeGannes]

Ok, I did another test and imported the raw file again (the files were deleted after my initial test) and used the menu function Library> Convert to DNG and this operated as expected. It appears the issue only happens when using export as DNG.

See the screen capture.

[Venkatesh Penjuri]

Thank you for reporting and sharing the file @apavlin. This is an issue. We will fix this bug.