Supported

The file format libopenraw supports even partially:

• ?Adobe DNG
• Canon CR2
• Canon CRW
• Epson ERF
• Fuji RAF
• Minolta MRW
• Nikon NEF and NRW
• Olympus ORF
• Panasonic RAW and RW2
• ?Pentax PEF
• ?Sony ARW

Not Supported

The file format that are not supported due to lack of documentation, sample or resources. There is a plan to support them in the long term. Any help is welcome.

• Foveon X3F
• Kodak DCR
• ?Kodak KDC
• ?Mamiya MEF
• Sony SRF
• ?Sony SR2

Metadata

• Lens Types

Other references

• http://crousseau.free.fr/imgfmt_raw.htm (in French, by one of the developers of DxO)
• The excellent File Format section from the archive team wiki

Sample Files

The internet is somewhat rich in sample files. The manufacturers however don't provide any. Some sources:

• http://raw.fotosite.pl/ has a public repository of RAW files from various camera.
• http://www.rawsamples.ch/ has different RAW samples.
• http://www.glasslantern.com/RAWpository/ is a third source.
• http://digikam3rdparty.free.fr/TEST_IMAGES/RAW/ from the Digikam team.
• Imaging Resource has a lot of sample files attached to their reviews.