Connecting to a digital camera
sudo pacman -S gphoto2
gphoto2 --auto-detect
The last commmand prints something like
Model Port
----------------------------------------------------------
USB PTP Class Camera usb:001,009
Apparently, it should now be possible to open or connect to the camere with dolphin (a file manager?) and entering gphoto2://[usb:001,009] as address. However, it doesn't. It complained that konqueror was missing. Even installing konqueror didn't help. So... wtf.
A better and easier way seems to be to use gphoto2's shell:
gphoto2 --shell