An imaging device includes a plurality of pixels arranged to form a plurality of rows and a plurality of columns and each including a photoelectric converter, an accumulation time controller that controls accumulation time of the plurality of pixels, and an amplifier that amp1ifies a signal based on charge generated by the photoelectric converter. The plurality of pixels are divided into a plurality of pixel blocks each including at least two of the plurality of pixels, the accumulation time controller is configured to control the accumulation time individually for the plurality of pixel blocks, and the amplifier is configured to output, for one pixel block of the plurality of blocks, a plurality of signals which are amp1ified at different gains and correspond to accumulation time of a common frame.