Nikon Electronic File

Writable

image

raw image format

Identify it

Extensions	`.nef`
MIME types	`image/x-nikon-nefimage/x-raw-nikon`
PRONOM	`fmt/202`
Wikidata	`Q3341814`

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libexiv2Open sourcereads and writes · GNU General Public License, version 2.0 or later
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To	With	Fidelity	Command and losses
Portable Network Graphics	ImageMagick	Lossless	`convert in.nef out.png` Pixels kept; some metadata, colour profiles or layers may be dropped.
Tagged Image File Format	ImageMagick	Lossless	`convert in.nef out.tif` Pixels kept; some metadata, colour profiles or layers may be dropped.
GIF 89a	ImageMagick	Lossy	`convert in.nef out.gif` Reduced to 256 colours.
JPEG File Interchange Format 1.02	ImageMagick	Lossy	`convert in.nef out.jpg` Lossy compression.
WebP	ImageMagick	Lossy	`convert in.nef out.webp` Lossy compression.

From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), Wikidata. Updated 2026-10-20.