Solid-state image sensing element and imaging system

A solid-state image sensing element comprising:

• a pixel array having a plurality of pixels arranged in two dimensions,
• each of the plurality of pixels including:
• a photoelectric conversion unit including a pixel electrode, a photoelectric conversion layer provided above the pixel electrode, and a counter electrode provided so as to sandwich the photoelectric conversion layer between the counter electrode and the pixel electrode, and
• a microlens arranged above the photoelectric conversion unit,
• wherein
• the plurality of pixels includes a first pixel and a plurality of second pixels,
• at least either the pixel electrodes of the plurality of second pixels are smaller than the pixel electrode of the first pixel or the counter electrodes of the plurality of second pixels are smaller than the counter electrode of the first pixel, and
• the first pixel is provided between one second pixel that is provided closest to a first outermost periphery of the pixel array and the first outermost periphery of the pixel array, another second pixel is provided between the one second pixel and a second outermost periphery of the pixel array, the second outermost periphery being located at an opposite side of the first outermost periphery, and the another second pixel is adjacent to the one second pixel.