Digital Negative (file format)

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Digital Negative (DNG)
File extension:	.dng
Developed by:	Adobe Systems
Type of format:	raw image format
Container for:	Metadata may be embedded in XMP, Exif or IPTC formats.
Extended from:	TIFF/EP

In digital photography, the Digital Negative (DNG) file format is a royalty free RAW image format designed by Adobe Systems. Its specification was announced on September 27, 2004.^[1] The same day, Adobe introduced Digital Negative to the market with its free Adobe DNG Converter program. According to Adobe, Digital Negative was a response to demand for a unifying camera raw file format.^[2] Digital Negative is based on the TIFF/EP format, and mandates use of metadata. All Adobe photo manipulation software (such as Adobe Photoshop and Adobe Lightroom) released since the announcement supports DNG.

Contents 1 Digital Cameras which support DNG 2 Software that supports DNG 3 See also 4 References 5 External links

[edit] Digital Cameras which support DNG

• Hasselblad supports DNG, but only as an output format via software on their V96C digital Back for the 503CW camera body.
• Leica's Digital-Modul-R for the R8 or R9, as well as the M8, and the Digilux-3 natively support the DNG format.
• Ricoh supports DNG in the Digital GR, considered a professional compact.
• Samsung supports DNG in their Pro815 "prosumer" camera and GX-10 DSLR camera
• Pentax supports DNG in their K10D DSLR camera

[edit] Software that supports DNG

Besides Adobe Photoshop, several other software programs provide read and sometimes write support for DNG files including: GIMP, ImageMagick, ExifTool,... (see [1] for the complete list of the software editors which informed Adobe of their products compatibility).

As of 2007/01/29, Hamrick's VueScan application for Mac OS X & Windows, beginning with version 8.4.05, adds support for writing DNG files from a flatbed or film scanner, as well as reading it from suitable digital cameras.

[edit] See also

• RAW image format
• Comparison of image viewers
• DNxHD codec
• dcraw
• XMP
• other digital negative formats

[edit] References

1. ^ Adobe Systems (September 27, 2004). Adobe Unifies Raw Photo Formats with Introduction of Digital Negative Specification. Press release.
2. ^ Kathy White. "Adobe Pushes DNG Image Format", Publish Magazine, March 15, 2005.

[edit] External links

• Official Adobe DNG page
  • Digital Negative Specification v. 1.1.0.0 (February 2005)
  • Introducing the Digital Negative Specification
  • Introducing the Digital Negative Specification: Information for Manufacturers
  • DNG hardware and software support

• Nixon, Stuart. Notes on the future of Open RAW formats, and a look at DNG (was: DNG Is Not the Answer). The OpenRAW Working Group. Retrieved on 2006-12-28.
• Pearson, Barry. DNG articles and links. Retrieved on 2006-12-28.
• Pearson, Barry. Commentary on Stuart Nixon's "DNG is not the answer". Retrieved on 2006-12-28.