| filename extensions | art-335 |
| x3f | |
| TechTarget file types | art-336 | X3F-Foveon-X3F-RAW-format-image |
| TechTarget file types | art-336 | X3F-Sigma-Camera-RAW-Picture-File-Sigma |
| English | eng-000 | Foveon X3F RAW format image. |
| English | eng-000 | SIGMA X3F Camera RAW File |
| English | eng-000 | Sigma Camera RAW Picture File |