An imaging device (2, 2a, 2b, 2c, 2d) comprising: a photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68) configured to perform photoelectric conversion; a first capacitor configured to hold a first signal from the photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68), the first capacitor being connected to a floating diffusion, FD of the photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68) via an intra-pixel amplification transistor and a global shutter,GS, transistor; a second capacitor configured to hold a second signal from the photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68), the second capacitor being connected to the FD of the photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68) via the intra-pixel amplification transistor and the GS transistor; a first reading section (43-1, 91) that reads the first signal held in the first capacitor, the first reading section (43-1, 91) comprising a third capacitor; a second reading section (43-2, 92) that reads the second signal held in the second capacitor, the second reading section (43-2, 92) comprising a fourth capacitor; a first amplification transistor that outputs the first signal via a first vertical signal line, VSL, to the first reading section (43-1, 42-1, 91); a second amplification transistor that outputs the second signal via a second vertical signal line, VSL, to the second reading section (42-2, 43-2, 92); a differential circuit in which the first signal from the first reading section (43-1, 91) is input at one end via the third capacitor and the second signal from the second reading section is input at another end via the fourth capacitor; an initialization section configured to initialize the differential circuit, the initialization section including a capacitor (99, 100, 203, 205) and a switch (97, 98, 202, 204); and wherein the photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68) is included in a first substrate, the first capacitor and the second capacitor are included in a second substrate, and the differential circuit is included in a third substrate. a photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68) configured to perform photoelectric conversion; a first capacitor configured to hold a first signal from the photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68), the first capacitor being connected to a floating diffusion, FD of the photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68) via an intra-pixel amplification transistor and a global shutter,GS, transistor; a second capacitor configured to hold a second signal from the photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68), the second capacitor being connected to the FD of the photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68) via the intra-pixel amplification transistor and the GS transistor; a first reading section (43-1, 91) that reads the first signal held in the first capacitor, the first reading section (43-1, 91) comprising a third capacitor; a second reading section (43-2, 92) that reads the second signal held in the second capacitor, the second reading section (43-2, 92) comprising a fourth capacitor; a first amplification transistor that outputs the first signal via a first vertical signal line, VSL, to the first reading section (43-1, 42-1, 91); a second amplification transistor that outputs the second signal via a second vertical signal line, VSL, to the second reading section (42-2, 43-2, 92); a differential circuit in which the first signal from the first reading section (43-1, 91) is input at one end via the third capacitor and the second signal from the second reading section is input at another end via the fourth capacitor; an initialization section configured to initialize the differential circuit, the initialization section including a capacitor (99, 100, 203, 205) and a switch (97, 98, 202, 204); and wherein the photoelectric conversion section (61, 62, 63, 64, 65, 66, 67, 68) is included in a first substrate, the first capacitor and the second capacitor are included in a second substrate, and the differential circuit is included in a third substrate.