Samsung RAW and Adobe DNG compared file size

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Samsung RAW and Adobe DNG compared file size
9 months ago

Hello all,

I tried this on a 26.283 KB Samsung NX10 RAW file :

- Compressed with WinZIP : 23.599 KB

- Compressed with 7ZIP : 20.706 KB

- Converted to DNG format with Adobe DNG Converter 8.3 : 12.709 KB !!!

Given there is a 4.647 KB JPEG file embedded within the Samsung RAW file, the RAW data + metadata are about 21.636 KB in size, still much bigger than the DNG file...

Why is the DNG file so small ? Is the conversion process lossy ?

Thank you for taking the time to clarify this.

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