P: Error after DNG conversion (Lossy)

[shammerl]

Use DNG 15.2 to convert Panasonic Lumix DC-S3M2 to DNG with Lossy Compression enabled. 
Attempt to import into CR 15.2 or LrC 12.2
File is not readable



Bug in LRC 12.2 und Camera Raw 15.2 bei der DNG-Konvertierung von Lumix DC-S5M2 Raw Dateien (*.RW2). Nach Konvertierung der RAW Dateien in das DNG-Format zeigt LRC einen Fehler an und die Dateien lassen sich nicht weiterverarbeiten. Auch PS und Bridge sind betroffen.

[Ian Lyons]

I've just checked Camera Raw 15.2 and Lightroom Classic 12.2 and they can convert to DNG and process the converted DNG file

Files converted from Lumix DC-S5M2 Raw (RW2) files using DNG Converter and imported into LrC 12.2 can also be processed without issue.

I'm using macOS 13.2.1 Ventura

May be you could upload an original and DNG version of the files you're having problems with to Dropbox or similar, then post alink to same when you next reply.

[GoldingD]

After converting the RAW files to DNG format

Is that conversion via LrC, or from a third party RAW converter?

[shammerl]

Ja, die Konvertierung erfolgte über LRC und auch über Adobe DNG Konverter!

das Problem tritt nur auf, wenn die Option "lossles compression " gewählt wurde!

[shammerl]

The issue only happens if the dng conversion is set with the option "lossless compression"!

[shammerl]

No third party software, only LRC and Adobe DNG Converter! The problem starts when the option ist set to lossless compression

[Ian Lyons]

Hmm, not sure where you're seeing an option for lossless compression as that that's the default conversion for DNG. Are you sure that you're not confusing 'Lossy Compression' as shown on attached screenshot of DNG Converter.

Edit: Attempting to use 'Lossy Compression' results in 'not supported', but this option is only used when lower quality demosaiced images are acceptable.

[shammerl]

Ohnmacht goodness! You are right!

I was wrong! I had tried the "lossy compression" option and then it got the error! the file was offered as a preview in LRC with a note, but it could not be edited! if this option is not set, then the files will also be properly converted to DNG! thank you for your hint!!!

[Ian Lyons]

It may still be a bug. Therefore, flagging for @Rikk Flohr: Photography to check internally.

[Rikk Flohr: Photography]

I am leaning towards a bug here. I can replicate with Lossy Compression enabled. 

[Rikk Flohr: Photography]

Updating status - adding bug number

[Rikk Flohr: Photography]

Greetings all,

Updates for Adobe Photography products have been released.  The April 2023 updates contain a fix for this issue. 

If you do not see the update in your Creative Cloud Application, you can refresh it by hitting [Ctrl/Cmd]+[Alt/Opt]+[ R ].

Note: It may take up to 24 hours for your update to be available in your Creative Cloud app.

Thank you for your patience.