digital photography Digital photography uses cameras containing arrays of electronic photodetectors interfaced to an analog-to-digital converter (ADC) to produce images focused by a lens, as opposed to an exposure on photographic film. The digitized image ...

, the Camera Image File Format (CIFF)

file format A file format is a standard way that information is encoded for storage in a computer file. It specifies how bits are used to encode information in a digital storage medium. File formats may be either proprietary or free. Some file format ...

is a

raw image format A camera raw image file contains unprocessed or minimally processed data from the image sensor of either a digital camera, a motion picture film scanner, or other image scanner. Raw files are named so because they are not yet processed and ...

metadata Metadata is "data that provides information about other data", but not the content of the data, such as the text of a message or the image itself. There are many distinct types of metadata, including: * Descriptive metadata – the descriptive ...

in APP0 of

JPEG JPEG ( ) is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and imag ...

images. Its

specification A specification often refers to a set of documented requirements to be satisfied by a material, design, product, or service. A specification is often a type of technical standard. There are different types of technical or engineering specificati ...

was released on February 12, 1997. The CIFF standard consists of two parts, CIFF Specification on Image Data File (last revision: version 1.0 revision 4, dated 24 December 1997) and CIFF 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 the CIFF Forum. The format is no longer used by Canon, having been superseded by the CR2 file format.

Digital cameras

The CRW format was supported by some earlier Canon

digital camera A digital camera is a camera that captures photographs in digital memory. Most cameras produced today are digital, largely replacing those that capture images on photographic film. Digital cameras are now widely incorporated into mobile devices ...

s: *

Canon EOS D30 The Canon EOS D30 is a discontinued 3.1-megapixel professional digital single lens reflex camera (DSLR) body, initially announced by Canon on May 17, 2000. It is part of the Canon EOS line of cameras and uses the EF lens mount. The EOS D30 was Ca ...

Canon EOS D60 The Canon EOS D60 is a discontinued 6.3 megapixel digital single lens reflex (DSLR) camera body, announced by Canon on February 22, 2002. It is part of the Canon EOS range, and accepts Canon EF, TS-E and MP-E lenses, but not Canon's later digit ...

* Canon EOS 10D * Canon EOS 300D * Canon Powershot Pro1 * Canon Powershots G1-G6 * Canon Powershots S30-S70

Software that supports CRW

Besides Canon's ZoomBrowser and Digital Photo Professional, several other software programs provide read support, and sometimes write support, for CRW files including: *

Adobe Photoshop Adobe Photoshop is a raster graphics editor developed and published by Adobe Inc. for Windows and macOS. It was originally created in 1988 by Thomas and John Knoll. Since then, the software has become the industry standard not only in rast ...

Aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An ...

darktable Darktable (stylized as darktable) is a free and open-source photography application program and raw developer. Rather than being a raster graphics editor like Adobe Photoshop or GIMP, it comprises a subset of image editing operations specifical ...

dcraw dcraw is an open-source computer program which is able to read numerous raw image format files, typically produced by mid-range and high-end digital cameras. dcraw converts these images into the standard TIFF and PPM image formats. This conve ...

* ExifTool *

LibRaw LibRaw is a free and open-source software library for reading raw files from digital cameras. It supports virtually all raw formats. It is based on the source code of dcraw, with modifications, and "is intended for embedding in raw converters, ...

Picasa Picasa was a cross-platform image organizer and image viewer for organizing and editing digital photos, integrated with a now defunct photo-sharing website, originally created by a company named Lifescape (which at that time was incubated by I ...

RawTherapee RawTherapee is application software for processing photographs in raw image formats, as created by many digital cameras. It comprises a subset of image editing operations specifically aimed at non-destructive post-production of raw photos and is ...

References

External links

CIFF specification

CR2 format

{{Graphics file formats Graphics file formats Digital photography

Digital cameras

Software that supports CRW

See also

References

External links