An endoscope includes an elongated tube. An objective lens system is disposed in the elongated tube, for passing image light from an object. A fiber optic image guide includes plural optical fibers bundled together, has a distal tip, is inserted through the elongated tube, for transmitting the image light focused on the distal tip by the objective lens system in a proximal direction. A displacing device displaces the distal tip laterally and periodically upon receiving entry of the image light being focused by use of a piezoelectric actuator positioned outside the distal tip. A support casing supports the distal tip inserted therein, keeps the distal tip shiftable on the displacing device, and transmits force of the piezoelectric actuator disposed outside to the fiber optic image guide.