Comment 35 for bug 1217230

Same problem with iPhone 5. The gvfs mount works fine in a terminal, but copying the files in nautilus, which used to be the easiest way to download the photos on F17, now just gives "Operation not supported by backend" after upgrading to F19.

I am pretty sure the problem is with either gvfs or nautilus, not with specific cameras. In fact, I am also not completely sure but I think the iPhone uses gvfs-afc, not gvfs-gphoto2 -- so this may be a general problem that affects more than one backend. gvfs-gphoto2 is probably not the main culprit -- I'd look at the nautilus/gvfs interaction.