A pixel array circuit comprising: first, second, third, and fourth pixel sets (51Gr, 51R, 51B, 51Gb) arranged in a 2x2 matrix in a plan view, the first and fourth pixel sets (51Gr, 51Gb) being arranged along a diagonal of the 2x2 matrix, each of the first, second, third and fourth pixel sets (51Gr, 51R, 51B, 51Gb) including four pixels arranged in a 2x2 matrix in plan view, each of the pixels including two photoelectric conversion parts of longitudinal shape, wherein the first and fourth pixel sets (51Gr, 51Gb) are configured to produce pixel signals corresponding to light in a first range of wavelengths, the second pixel set is configured to produce pixel signals corresponding to light in a second range of wavelengths different than the first range of wavelengths, the third pixel set is configured to produce pixel signals corresponding to light in a third range of wavelengths different than the first and second range of wavelengths, orientations of the longitudinal shapes of each of the photoelectric conversion parts of the four pixels in the first pixel set are arranged in a first direction, orientations of the longitudinal shapes of each of the photoelectric conversion parts of the four pixels in the second pixel set are arranged in a second direction perpendicular to the first direction, orientations of the longitudinal shapes of each of the photoelectric conversion parts of the four pixels in the third pixel set are arranged in the second direction, and orientations of the longitudinal shapes of each of the photoelectric conversion parts of the four pixels in the fourth pixel set are arranged in the first direction. first, second, third, and fourth pixel sets (51Gr, 51R, 51B, 51Gb) arranged in a 2x2 matrix in a plan view, the first and fourth pixel sets (51Gr, 51Gb) being arranged along a diagonal of the 2x2 matrix, each of the first, second, third and fourth pixel sets (51Gr, 51R, 51B, 51Gb) including four pixels arranged in a 2x2 matrix in plan view, each of the pixels including two photoelectric conversion parts of longitudinal shape, wherein the first and fourth pixel sets (51Gr, 51Gb) are configured to produce pixel signals corresponding to light in a first range of wavelengths, the second pixel set is configured to produce pixel signals corresponding to light in a second range of wavelengths different than the first range of wavelengths, the third pixel set is configured to produce pixel signals corresponding to light in a third range of wavelengths different than the first and second range of wavelengths, orientations of the longitudinal shapes of each of the photoelectric conversion parts of the four pixels in the first pixel set are arranged in a first direction, orientations of the longitudinal shapes of each of the photoelectric conversion parts of the four pixels in the second pixel set are arranged in a second direction perpendicular to the first direction, orientations of the longitudinal shapes of each of the photoelectric conversion parts of the four pixels in the third pixel set are arranged in the second direction, and orientations of the longitudinal shapes of each of the photoelectric conversion parts of the four pixels in the fourth pixel set are arranged in the first direction.