I followed instructions on the Ubuntu Forums to configure Nautilus to display additional information about image files - specifically, the EXIF data:
My machine is running Ubuntu 11.04. Having followed the procedure outlined in the above thread, I killed all instances of Nautilus, restarted Nautilus and selected the required columns in the view preferences.
EXIF Image Size
EXIF Flash columns are blank. The only column that displays info is Image Size.
I followed the same procedure on my Ubuntu 10.10 machine at work, and the EXIF data is displayed.
I expected this method to work on 11.04, as none of the steps appear to be 10.xx specific.