Crop information related to a particular crop is collected and stored in data storage during the performance of an agricultural operation. On the other hand, an imaging information acquisition unit acquires imaging information as information during imaging. The request message is sent and the node that receives it enters an energy saving mode. If not, the pilot will continue along the flight path 164 activating the apparatus at further designation points 168, 170 and 172 to reduce the designation error between the coordinates calculated by the apparatus and the real world landing position 162 observed by the pilot until the pilot is satisfied. This shortens the time of not displaying a live view image, thereby preventing a shutter release opportunity from being missed and improving the convenience of a live view display.