Plugging it in with RB not running: automounts + dialog "You have just inserted a medium with digital photos. [...]".
Plugging it in with RB running: no automount, doesn't show up in Nautilus, shows up in RB under "Devices".
Starting RB while camera mounted: trying to access it in Nautilus results in a dialog: "The folder contents could not be displayed. 'USB PTP Camera' could not be found. Perhaps it has recently been deleted.", camera shows up in RB.
I can reproduce it with a Fuji F100fd.
Plugging it in with RB not running: automounts + dialog "You have just inserted a medium with digital photos. [...]".
Plugging it in with RB running: no automount, doesn't show up in Nautilus, shows up in RB under "Devices".
Starting RB while camera mounted: trying to access it in Nautilus results in a dialog: "The folder contents could not be displayed. 'USB PTP Camera' could not be found. Perhaps it has recently been deleted.", camera shows up in RB.