My JPEGs are 6MB, but my NEFs are 24MB. Is this normal?
Chris says… Your results are completely normal! Going from 23.8Mb to 6.2Mb is exactly what I would expect.
When you make a JPEG from a RAW file, two things happen: 1) Extra unused data in the RAW file is discarded. 2) The JPEG format uses sophisticated compression techniques that can massively reduce the file size with negligible effect on image quality.
The extra information in RAW files is what enables you to change the White Balance, exposure and colour settings later