An imaging apparatus includes: a light source unit capable of emitting first illumination light and second illumination light that have illumination intensities different from each other as illumination light that illuminates a subject； a sensor unit in which a plurality of pixels each generating an electric signal by receiving light and performing photoelectric conversion are arranged on a two-dimensional surface, and that reads, as pixel information, the electric signals generated by pixels arbitrarily set as a reading target from among the plurality of pixels； an imaging controller that controls the sensor unit to read the pixel information； and a light source controller that controls the light source unit to emit any one of the first illumination light and second illumination light per one-frame period that is a time period necessary for the sensor unit to read the pixel information worth one screen.
