An endoscope system including: a light source that generates illuminating light； a controller that receives a light control signal and controls the illuminating light； a light receiving unit having pixels in a matrix； a reading unit that sequentially reads an electrical signal for each line； and an imaging controller that repeats read processing to sequentially read, for each line, the electrical signal from the light receiving unit, and exposure processing for exposing the light receiving unit. Where a blanking period is a time from completion of reading of a last line for a preceding frame to start of reading of a first line for a following frame and a read period is a time from a start of reading of a first line for a frame to completion of reading of a last line of the frame such that the blanking period can be changed without changing the read period.
