gvfs-mount "gphoto2://[usb:003,018]/" Error mounting location: volume doesn't implement mount
Then go to the directory where you want to import your files, make sure your camera is detected correctly and execute this command
gphto2 --auto-detect gphoto2 -PThat's all.
But gphoto can do much more. You can, for example, see how many images you took with the camera, change the whole configuration or capture images directly from your computer. It's worth to read the man page