An imaging unit comprising: an imaging element that includes: a first unit group having a plurality of first pixels arranged side by side in a row direction and a column direction, each first pixel including a first photodiode that converts light into a charge, a second unit group having a plurality of second pixels arranged side by side in the row direction and the column direction, each second pixel including a second photodiode that converts light into a charge; and a control section that controls a charge accumulation of the first photodiode and a charge accumulation of the second photodiode, wherein the imaging element includes: a first control line (306, 307), to which a first control signal for controlling the charge accumulation of the first photodiode is output, that is connected to the plurality of first pixels in common, a second control line (306, 307), to which a second control signal for controlling the charge accumulation of the second photodiode is output, that is connected to the plurality of second pixels in common, a first computational circuit that is connected to the plurality of first pixels, and performs an integration process to a first signal based on a charge converted by the first photodiode and a second signal generated after the first signal in the first photodiode, and a second computational circuit that is connected to the plurality of second pixels, and performs an integration process to a third signal based on a charge converted by the second photodiode and a fourth signal generated after the third signal in the second photodiode, and the control section determines, based on a light measurement result, a number of times of the charge accumulation of the first photodiode and a number of times of the charge accumulation of the second photodiode. an imaging element that includes: a first unit group having a plurality of first pixels arranged side by side in a row direction and a column direction, each first pixel including a first photodiode that converts light into a charge, a second unit group having a plurality of second pixels arranged side by side in the row direction and the column direction, each second pixel including a second photodiode that converts light into a charge; and a first unit group having a plurality of first pixels arranged side by side in a row direction and a column direction, each first pixel including a first photodiode that converts light into a charge, a second unit group having a plurality of second pixels arranged side by side in the row direction and the column direction, each second pixel including a second photodiode that converts light into a charge; and a control section that controls a charge accumulation of the first photodiode and a charge accumulation of the second photodiode, wherein the imaging element includes: a first control line (306, 307), to which a first control signal for controlling the charge accumulation of the first photodiode is output, that is connected to the plurality of first pixels in common, a second control line (306, 307), to which a second control signal for controlling the charge accumulation of the second photodiode is output, that is connected to the plurality of second pixels in common, a first computational circuit that is connected to the plurality of first pixels, and performs an integration process to a first signal based on a charge converted by the first photodiode and a second signal generated after the first signal in the first photodiode, and a second computational circuit that is connected to the plurality of second pixels, and performs an integration process to a third signal based on a charge converted by the second photodiode and a fourth signal generated after the third signal in the second photodiode, and a first control line (306, 307), to which a first control signal for controlling the charge accumulation of the first photodiode is output, that is connected to the plurality of first pixels in common, a second control line (306, 307), to which a second control signal for controlling the charge accumulation of the second photodiode is output, that is connected to the plurality of second pixels in common, a first computational circuit that is connected to the plurality of first pixels, and performs an integration process to a first signal based on a charge converted by the first photodiode and a second signal generated after the first signal in the first photodiode, and a second computational circuit that is connected to the plurality of second pixels, and performs an integration process to a third signal based on a charge converted by the second photodiode and a fourth signal generated after the third signal in the second photodiode, and the control section determines, based on a light measurement result, a number of times of the charge accumulation of the first photodiode and a number of times of the charge accumulation of the second photodiode.