Difference between revisions of "Nikon Electronic Format"
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| Line 5: | Line 5: | ||
*NEF | *NEF | ||
*Nikon Image Format | *Nikon Image Format | ||
| + | *Nikon Digital SLR Camera Raw Image File | ||
===File extension(s)=== | ===File extension(s)=== | ||
| Line 10: | Line 11: | ||
===Format Registry Information=== | ===Format Registry Information=== | ||
| − | [http://www.nationalarchives.gov.uk/PRONOM/Format/proFormatSearch.aspx?status=detailReport&id= | + | [http://www.nationalarchives.gov.uk/PRONOM/Format/proFormatSearch.aspx?status=detailReport&id=927] |
===Preservation Action Plan=== | ===Preservation Action Plan=== | ||
| − | * | + | *Possible normalization to Adobe Digital Negative (DNG) format |
| − | + | ***Library of Congress states that [http://www.digitalpreservation.gov/formats/fdd/fdd000188.shtml Adobe Digital Negative (DNG), Version 1.1] may be emerging as a standard preservation format for raw camera images. Adobe provides a free (but not open-source) [http://www.adobe.com/products/dng/ Adobe DNG Converter] designed for downloading to Windows or Mac computers. | |
| − | === | + | ===Preservation Issues=== |
| + | *Xena incorrectly guesses the file type as TIFF and normalizes as it would a TIFF, with the result that a very large file (e.g. 70 MB) is normalized to a very small one (eg. 250 KB) with considerable loss of data. Xena also removes embedded data added during image editing, converting the data to a separate XMP file. This means that any edits added by the creator are removed. | ||
| + | *NEF is a proprietary format with an unpublished specification. | ||
| + | *NEF files can be very large - 70 MB or more. | ||
| + | *PRONOM provides only outline information for NEF files: see [http://www.nationalarchives.gov.uk/PRONOM/Format/proFormatSearch.aspx?status=detailReport&id=927 PRONOM: Nikon Digital SLR Camera Raw Image File]. | ||
| − | |||
| − | |||
| − | |||
| − | === | + | ===More information=== |
| − | * | + | *NEF is a raw (i.e. pre-processed) image format produced by Nikon cameras. |
| + | *Much more detailed information on NEF files is available at [http://www.digitalpreservation.gov/formats/fdd/fdd000241.shtml Library of Congress Sustainability of Digital Formats: Camera Raw Formats]. | ||
__NOTOC__ | __NOTOC__ | ||
Revision as of 18:40, 7 December 2009
Main Page > Documentation > Format-specific preservation issues > Nikon Electronic Format
Also known as
- NEF
- Nikon Image Format
- Nikon Digital SLR Camera Raw Image File
File extension(s)
.nef
Format Registry Information
Preservation Action Plan
- Possible normalization to Adobe Digital Negative (DNG) format
- Library of Congress states that Adobe Digital Negative (DNG), Version 1.1 may be emerging as a standard preservation format for raw camera images. Adobe provides a free (but not open-source) Adobe DNG Converter designed for downloading to Windows or Mac computers.
Preservation Issues
- Xena incorrectly guesses the file type as TIFF and normalizes as it would a TIFF, with the result that a very large file (e.g. 70 MB) is normalized to a very small one (eg. 250 KB) with considerable loss of data. Xena also removes embedded data added during image editing, converting the data to a separate XMP file. This means that any edits added by the creator are removed.
- NEF is a proprietary format with an unpublished specification.
- NEF files can be very large - 70 MB or more.
- PRONOM provides only outline information for NEF files: see PRONOM: Nikon Digital SLR Camera Raw Image File.
More information
- NEF is a raw (i.e. pre-processed) image format produced by Nikon cameras.
- Much more detailed information on NEF files is available at Library of Congress Sustainability of Digital Formats: Camera Raw Formats.