Provided is an image pickup device that includes: a head unit 4a which has an image pickup element 10; and a connector unit 4c which is integrally connected to the head unit 4a via a cable 4b. The head unit 4a includes: an electronic shutter register 40 that retains setting values which are for controlling the image pickup element 10 and are from among control data items sent from the connector unit 4c; a control advisability register 45 that retains information for indicating whether or not to send the setting values, which are for controlling the image pickup element 10 and are from among the control data items sent from the connector unit 4c, to a register 51 provided to the image pickup element 10; and a communication circuit 49 that, on the basis of the information retained in the control advisability register 45, controls whether or not to send the setting values retained in the electronic shutter register 40 to the register 51 provided to the image pickup element 10.