Viewing Canon RAW Files in Image Viewer
The Ubuntu 10.04 Image Viewer can display Canon RAW image (.CR2) files, however, when viewing one, it doesn’t recognize other CR2 files in that directory for the purposes of displaying the next image. It does do this for other image types, such as JPEG. There is a workaround for this problem. Select all the CR2 files in Nautilus, right click one and select “Open with Image Viewer.”