Image pickup element and image pickup apparatus

An image pickup element comprising:

• a plurality of light-receiving elements, arranged in a row direction and a column direction, that receive light from an object, two pairs of light-receiving elements forming a pair in the column direction corresponding to a vertical direction of the object and forming a pair in the row direction corresponding to a horizontal direction of the object, the two pairs of light-receiving elements outputting pixel signals forming two pairs of captured images that have parallax of the object;
• a microlens that refracts light from the object and causes the light-receiving elements to receive the light;
• a color filter, between the microlens and the light-receiving elements, that transmits light in accordance with color and has one color among Red (R), Green (G), and Blue (B) for each pair of light-receiving elements, two colors R and G or two colors B and G alternating in the row direction;
• and
• wiring, between the light-receiving elements in the row direction, that transmits an input signal or an output signal of the light-receiving elements.