## DNG Tags

The main DNG tags are found in the EXIF table. The tables below define tags found within structures of these main tag values.

## DNG MakerNotes Tags

This information is always big-endian, and is found in the DNGPrivateData with a prefix of "Adobe\0MakN". Following OriginalMakerNoteOffset is a copy of the maker notes from the original raw file. These notes are processed by ExifTool, but some information may have been lost by the Adobe DNG Converter during conversion. The reason is that DNG Converter (version 3.3) doesn't realize that the maker notes may reference information outside the maker note block, and this information is lost when only the maker note block is copied to the DNG image. While this isn't a big problem for most Canon, Nikon or Pentax camera models, it is serious for some Olympus models.

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0x000a | MakerNoteLength | N |
> 0x000e | MakerNoteByteOrder | N |
> 0x0010 | OriginalMakerNoteOffset | N |

## DNG OriginalRaw Tags

This table defines tags extracted from the DNG OriginalRawFileData information. All other DNG tags are defined in the EXIF table.

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0x0000 | OriginalRawImage | N |
> 0x0001 | OriginalRawResource | N |
> 0x0002 | OriginalRawFileType | N |
> 0x0003 | OriginalRawCreator | N |
> 0x0004 | OriginalTHMImage | N |
> 0x0005 | OriginalTHMResource | N |
> 0x0006 | OriginalTHMFileType | N |
> 0x0007 | OriginalTHMCreator | N |

<-- ExifTool Tag Names

(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised May 24, 2006