X3F

File Format
Name	X3F
Ontology	Electronic File Formats Cameras and Digital Image Sensors X3F
Extension(s)	.x3f

X3F (or Sigma X3F, or Foveon X3F) is a raw image format used by some Sigma digital cameras that use a "Foveon sensor".

Identification

Files begin with ASCII signature "FOVb".

Specifications

• http://www.photofo.com/downloads/x3f-raw-format.pdf
• http://www.photofo.com/x3f-raw-format/

Software

• See also Cameras and Digital Image Sensors: Software
• Proxel X3F Tools (from archive.org)
  • https://github.com/rolkar/x3f
• X3F Decoder and Tools
• X3F Tool

Sample files

• RAW-Samples: Sigma RAW Files
• http://digikam3rdparty.free.fr/TEST_IMAGES/RAW/HORIZONTAL/ → *.x3f

Links

• libopenraw: Foveon X3F
• Foveon web site
• Wikipedia: Foveon X3 sensor