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I'm not getting any thumbnails in nautilus for my NEF files (photo raw). Is there an easy way to repair this?

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Is this still reproducible? –  Braiam Apr 7 at 0:26
    
@Braiam Don't know about 14.04, but in 13.10 I had to install those extra packages as in my asnwer for it to work. –  Dan Apr 7 at 7:12
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2 Answers 2

By default, Ubuntu doesn’t display thumbnails for NEF files. But you can try (as explained in this blog post) installing UFraw.

sudo apt-get install ufraw

And if itś not already existing, create a thumbnailer file /usr/share/thumbnailers/ufraw.thumbnailer, with content :

[Thumbnailer Entry]
Exec=/usr/bin/ufraw-batch --embedded-image --out-type=png --size=%s %u --overwrite --silent --output=%o
MimeType=image/x-3fr;image/x-adobe-dng;image/x-arw;image/x-bay;image/x-canon-cr2;image/x-canon-crw;image/x-cap;image/x-cr2;image/x-crw;image/x-dcr;image/x-dcraw;image/x-dcs;image/x-dng;image/x-drf;image/x-eip;image/x-erf;image/x-fff;image/x-fuji-raf;image/x-iiq;image/x-k25;image/x-kdc;image/x-mef;image/x-minolta-mrw;image/x-mos;image/x-mrw;image/x-nef;image/x-nikon-nef;image/x-nrw;image/x-olympus-orf;image/x-orf;image/x-panasonic-raw;image/x-pef;image/x-pentax-pef;image/x-ptx;image/x-pxn;image/x-r3d;image/x-raf;image/x-raw;image/x-rw2;image/x-rwl;image/x-rwz;image/x-sigma-x3f;image/x-sony-arw;image/x-sony-sr2;image/x-sony-srf;image/x-sr2;image/x-srf;image/x-x3f;

This file basically say to exec ufraw-batch (with the good parameters) on any file with the specified mimetypes (including image/x-nef).

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+1, a small correction needed, it should be /usr/share/thumbnailers instead of /usr/share/thumbnailer –  danijelc Dec 17 '13 at 11:04
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You can install the following packages, and Nautilus will start displaying thumbnails for NEF files without having to do any manual configuration.

sudo apt-get install libopenraw1 libopenrawgnome1 gnome-raw-thumbnailer

source: Ubuntu Foums - viewing nikon NEF raw files?

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