| Camera Image File Format (CIFF) | |
|---|---|
| Filename extension | .crw |
| Internet media type | image/x-canon-crw |
| Developed by | Canon, CIFF Forum |
| Initial release | 12 February 1997; 29 years ago (1997-02-12) |
| Latest release | Image Data Format version 1.0 revision 4; File/Directory Organization version 1.0 revision 3 24 December 1997 (1997-12-24); 9 February 1998; 28 years ago (1998-02-09) |
| Type of format | raw image format |
| Extended to | DCF 1.0 (JEIDA-49-2-1998) |
| Website | ciff-forum |
Indigital photography, theCamera Image File Format (CIFF)file format is araw image format designed byCanon, and also used as a container format to storemetadata in APP0 ofJPEG images.[1] Itsspecification was released on February 12, 1997.[2]
The CIFF standard consists of two parts,CIFF Specification on Image Data File (last revision: version 1.0 revision 4, dated 24 December 1997) andCIFF Specification on File/Directory organization and File Handling Protocol (last revision: version 1.0 revision 3, dated 9 February 1998). The format was developed and maintained by Canon with input from theCIFF Forum. The format is no longer used by Canon, having been superseded by theCR2 file format.
The CRW format was supported by some earlier Canondigital cameras:[3]
Besides Canon's ZoomBrowser and Digital Photo Professional, several other software programs provide read support, and sometimes write support, for CRW files including:
| Raster | |
|---|---|
| Raw | |
| Vector | |
| Compound | |
| Metadata |
|
