There is disclosed a camera in which, in a case where luminance of an acquired image signal is corrected and raised in accordance with luminance of each region, a correction amount of an image signal for use as a photographed image is smaller than a correction amount of an image signal for use as an image for monitoring. The sled vastly increases the total volume of grass, leaves, and other lawn residue that can be picked up and transported to a disposal site. The signal pertains to a regulation and or emergency command. The first mode of operation can be used during write operations and during read operations at the lowest one of a plurality of different dynamically selectable voltage levels of operation of the memory 4. based on the measured value of the quantity. The service managed object includes an interface configured to represent management features for the service to a manager.