I've checked that the same issue (nautilus hangs) occurs when trying to view / set file properties of .CR2 files (Canon proprietary raw data format). I attach a .CR2 file from a Canon EOS 1 Ds Mark III to this comment.
** Attachment added: "Canon .CR2 file (Canon's proprietary raw data format)" https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1043614/+attachment/3312855/+files/5M1E9687.CR2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1043614 Title: Nautilus hangs on viewing .dng file properties To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1043614/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs