Format
Digital Negative Format (DNG)
Summary
- Name
- Digital Negative Format (DNG)
- Version
- 1.2
- Identifiers
-
- PUID: fmt/437
- MIME: image/dng
- Format type
- Image (Raster)
- Disclosure
- Full
- Description
- The Digital Negative (DNG) Specification describes a non-proprietary file format for storing camera raw files that can be used by a wide range of hardware and software vendors. DNG is an extension of the TIFF 6.0 format, and is compatible with the TIFF-EP standard. This version, published May 2008, was based on experience and feedback from other companies about DNG since its launch. It introduced many new features, especially several new options for colour specification under the general heading of "Camera Profiles". These are mainly of value to software products wanting their own flavour of colour handling. This version permits administrative control of Camera Profiles, including calibration signatures and copyright information.
- File extensions
-
dng - Source
- Adobe Systems Incorporated
Relationships
- Has priority over
- Is previous version of
- Is subsequent version of
- Is subtype of
Internal signatures
DNG 1.2 (little-endian, BOF)
- Note
- TIFF header plus DNGVersion tag near BOF
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
49492A00{0-4080}12C601000400000001020000- Endianness
- Little-endian
DNG 1.2 (little-endian, BOF+EOF)
- Note
- TIFF header plus DNGVersion tag near EOF
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
49492A00- Endianness
- Little-endian
- Min Frag Length
- Absolute from EOF
- Offset
- 0
- Max offset
- 128000
- Byte Sequence
12C601000400000001020000- Endianness
- Little-endian
DNG 1.2 (big-endian, BOF)
- Note
- TIFF header plus DNGVersion tag near BOF
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
4D4D002A{0-4080}C61200010000000401020000- Endianness
- Big-endian
DNG 1.2 (big-endian, BOF+EOF)
- Note
- TIFF header plus DNGVersion tag near EOF
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
4D4D002A- Endianness
- Big-endian
- Min Frag Length
- Absolute from EOF
- Offset
- 0
- Max offset
- 128000
- Byte Sequence
C61200010000000401020000- Endianness
- Big-endian
Changelog
-
Updated in V116
- Release date
- 23 November 2023
Digital Negative Format (DNG) 1.2: Max-offset increased to 128000 bytes for EOF signatures and MIME type of 'image/dng' added. Submitted by Brigham Young University.
-
Updated in V82
- Release date
- 27 March 2015
Digital Negative Format (DNG) 1.2: Set priority over Nikon Digital SLR Camera Raw Image File due to potential for clash.
-
Updated in V66
- Release date
- 18 December 2012
Digital Negative Format (DNG) 1.2: Corrected priority information to avoid multiple identification clashes with TIFF identified by Ross Spencer.
-
Added in V60
- Release date
- 11 June 2012
DNG 1.2 (little-endian, BOF): Signature developed through PRONOM Research.
DNG 1.2 (little-endian, BOF+EOF): Signature developed through PRONOM Research.
DNG 1.2 (big-endian, BOF): Signature developed through PRONOM Research.
DNG 1.2 (big-endian, BOF+EOF): Signature developed through PRONOM Research.
Digital Negative Format (DNG) 1.2: Full entry added.