Electronic device, image-capturing device, and image-capturing system

An image-capturing device comprising:

• an image sensor in which a plurality of pixels, each containing a photoelectric conversion part that converts light into an electric charge, are arranged along a row direction;
• a setting part that sets a first pixel among the plurality of pixels to be driven under a first imaging condition;
• and
• a processor that is configured to control the setting part to drive a second pixel among the plurality of pixels under a second imaging condition when the first pixel is set to be driven under the first imaging condition by the setting part,
• wherein the processor controls the second imaging condition so that a difference between a brightness value of a subject imaged using the first pixel and a brightness value of the subject imaged using the second pixel becomes larger before and after the first imaging condition is set for the first pixel by the setting part.