An ocular fundus camera system and an associated methodology. MEANS FOR SOLVING PROBLEMS When the contents data is acquired in real time from the delivery apparatus 5 by the contents data acquiring device 11a, the contents data is outputted to a display or the like and displayed in real time by the contents data outputting device 11b. When the stored resources contain a predetermined number of occurrences of a specific resource, the predetermined number being at least two, and the user navigates to the specific resource again, the stored resources between two of said occurrences of the specific resource, and one of said occurrences of the specific resource, are deleted from the stored navigation history. The hydraulic system includes a pump to provide fluid to the cylinder at the desired pressure to raise the ramp and extend the lip.