DNG

DNG (Digital Negative) is a digital camera raw image format developed by Adobe and released in 2004. Adobe also released a free DNG converter at this time which is continually being updated with compatible RAW file types. DNG is an extension of TIFF 6.0 and is compatible with TIFF/EP.

Adobe intends for DNG to become an archival file type, creating an open standard for RAW files.

Metadata can be written directly into a DNG file.

Disambiguation
The term digital negative is also used generically, to mean any raw image from a digital camera.

Identification
TIFF tag 50706 ("DNGVersion") is present. However, some files containing this tag would be better identified as a specific raw camera format.

Specifications
Although the DNG specification is freely available, it makes frequent reference to the TIFF/EP specification, which is not, although does follow some TIFF/EP specs like SubIFD trees.


 * Digital Negative Specification, Version 1.6.0.0 (2021-12)
 * Digital Negative Specification, Version 1.5.0.0 (2019-05; from archive.org)
 * Digital Negative Specification, Version 1.4.0.0 (2012-06; from archive.org)
 * Digital Negative Specification, Version 1.3.0.0 (2009-06; from archive.org)
 * Digital Negative Specification, Version 1.2.0.0 (2008-04; from archive.org)
 * Digital Negative Specification, Version 1.1.0.0 (2005-02; from archive.org)
 * Digital Negative Specification, Version 1.0.0.0 (2004-09; from archive.org)

Software
Refer to Cameras and Digital Image Sensors.

Sample files

 * http://allaboutwindowsphone.com/features/item/18984_Nokia_Lumia_1020_RAW_camera_ca.php
 * http://conversations.nokia.com/2013/10/29/another-nokia-first-digital-negatives-raw-dng-lumia/
 * http://www.slack.co.uk/slack/Download.html
 * http://www.kenrockwell.com/leica/m9/sample-photos-3.htm