Difference between revisions of "Nikon Electronic Format"

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[[Main Page]] > [[Documentation]] > [[Format-specific preservation issues]] > Nikon Electronic Format
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[[Main Page]] > [[Documentation]] > [[Media type preservation plans]] > Nikon Electronic Format
  
  
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.nef
 
.nef
  
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===Format Registry Information===
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===Format registry information===
 
[http://www.nationalarchives.gov.uk/PRONOM/Format/proFormatSearch.aspx?status=detailReport&id=927 PRONOM]
 
[http://www.nationalarchives.gov.uk/PRONOM/Format/proFormatSearch.aspx?status=detailReport&id=927 PRONOM]
  
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===Preservation Action Plan===
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===Significant characteristics===
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*Possible normalization to Adobe Digital Negative (DNG) format
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See [[Significant characteristics of raster images]]
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**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.
 
  
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===Preservation Issues===
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===Preservation action plan===
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*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. Changes to the raw file (ie: alterations done in image editing software) are stored in a separate XMP file, which Xena also does not recognize, and does not normalize together. This means that any edits added by the creator are removed.
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See [[Raw camera files]]
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===Preservation issues===
 
*NEF is a proprietary format with an unpublished specification.
 
*NEF is a proprietary format with an unpublished specification.
 
*NEF files can be very large - 70 MB or more.
 
*NEF files can be very large - 70 MB or more.
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===Conversion test results===
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*[[NEF to DNG using DNGConverter]]
  
 
===More information===
 
===More information===

Latest revision as of 17:08, 29 March 2011

Main Page > Documentation > Media type preservation plans > Nikon Electronic Format


Also known as[edit]

  • NEF
  • Nikon Image Format
  • Nikon Digital SLR Camera Raw Image File

File extension(s)[edit]

.nef

Format registry information[edit]

PRONOM

Significant characteristics[edit]

See Significant characteristics of raster images

Preservation action plan[edit]

See Raw camera files

Preservation issues[edit]

  • NEF is a proprietary format with an unpublished specification.
  • NEF files can be very large - 70 MB or more.

Conversion test results[edit]

More information[edit]


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