PROBLEM TO BE SOLVED: To provide an imaging system capable of appropriately supplying power.SOLUTION: An imaging system comprises: power source means for generating power to be supplied to an imaging apparatus a power supply line and a ground line for supplying power generated by the power source means to the imaging apparatus multiple transmission lines for transmitting an imaging signal to a signal processing device first voltage application means for applying the voltage level of power to be supplied through the power supply line to the first transmission line between the multiple transmission lines second voltage application means for applying the voltage level of the ground of the imaging apparatus to be transmitted through the ground line to the second transmission line being a transmission line different from the first transmission line among the multiple transmission lines separation means for separating the voltage level of power from the first transmission line and also separating the voltage level of the ground from the second transmission line and power supply control means for controlling power to be generated by the power source means on the basis of the voltage levels separated by the separation means.
