DNG files getting bigger rather than smaller with new Sony A1 Small and Medium Sized RAW files

[dschamis]

I am using the new LR Classic 11.4 for Windows with a Sony A1 and its newest v1.3 firmware.

I routinely convert my ARW files to DNG in Lightroom Classic. As a rule the DNG files are usually about 20% smaller than the original ARW files (which is one of the reasons I like to convert).

LR v 11.4 supports the new Sony firmware and took a bunch of ARW shots in the Small and Medium size.

When they got converted to DNG the size nearly doubles! 

https://drive.google.com/drive/folders/18e57-sjmjJJ6Bcx9OB1ZnoH0scxShL-z?usp=sharing

Full size are still behaving as you would expect. 

[GoldingD]

Check your settings and see if the option to embed original RAW file in DNG was off, but now on.

[dschamis]

No - it wasn't.

I'd love to see if someone else gets the same results with the ARW files in the Google Drive folder.

[Venkatesh Penjuri]

Thank you for sharing the files. Looks like this is specific to the small and Medium size ARWs you shared. I am not seeing this behaviour on other file formats. Thanks for reporting. 

[dschamis]

Yes - that is exactly correct - it is happening for the new Small & Medium RAW files but not the old Large format.

Thanks for responding.

David

[dschamis]

Venkatesh - any update on this?  I just tested this again and its still happening.

Thanks,

David

[Thor Egil Leirtrø]

It probably just indicates that Sony has a better compression algorithm than the DNG converter.

[dschamis]

Here is a quick video that shows what is happening here:

https://youtu.be/g1laa6Ebfz0