An endoscopic system 1 according to the present invention is provided with: an endoscope 2 which includes a left-eye optical system 21A, a right-eye optical system 21B, an imaging unit 20, a memory 24 storing view angle correction data and a light source integrated-type processor 3 which includes a correction data acquisition unit 311 that acquires the view angle correction data from the memory 24 and a correction unit 35 that performs corrections based on the acquired view angle correction data such that a view angle of a left-eye image and a view angle of a right-eye image match each other and a size of the left-eye image and a size of the right-eye image match each other. Accordingly, provided is an imaging system capable of suitably executing image corrections in response to a mounted optical unit even if an arbitrary optical unit is mounted to a processing device as the optical unit including two optical systems for stereoscopic observation.