Logout after adding to group
I played around with the instructions in the article and at one point could see the camera listed in the output of "lsusb" in Terminal 1 but not in the Gnome terminal. After restarting (logging out/in) Gnome everything worked. Maybe that should be added.
i think is a good idea to speak about shotwell software, like f-spot BUT MONO free and less dependencies, more speed than f-spot