Image sensor and imaging device

An image sensor, comprising:

• a first pixel and a second pixel, provided in a first direction, each including a first photoelectric conversion unit that photoelectrically converts light to generate an electric charge and a light-shielding unit that shields a part of light incident to the first photoelectric conversion unit and outputting a signal based on the electric charge generated by the first photoelectric conversion unit;
• a third pixel and a fourth pixel, provided in the first direction, each including a second photoelectric conversion unit that photoelectrically converts light to generate an electric charge and outputting a signal based on the electric charge generated by the second photoelectric conversion unit;
• a first signal line and a second signal line, provided in the first direction, each of which can be connected to the first pixel, the second pixel, the third pixel and the fourth pixel;
• and
• a control unit that performs a first control in which a signal of the first pixel is output to the first signal line and a signal of the second pixel is output to the second signal line, and a second control in which a signal of the third pixel and a signal of the fourth pixel are output to the first signal line.