An endoscope including: a distal end housing which is provided at a distal end of an endoscope insertion unit； an observation window which is provided at the distal end housing； an imaging part which is provided inside the distal end housing and configured to image an imaging target which is positioned outside the distal end housing through the observation window； an imaging part moving unit which is configured to move the imaging part with respect to the observation window and to change a range of an imaging view field of the imaging part； a cleaning unit configured to clean an outer surface of the observation window； and a synchronizing unit which is configured to synchronize a change operation of a rang of an imaging view field of the imaging part by the imaging part moving unit with a cleaning operation by the cleaning unit.
