LENS BARREL

摘要

This lens barrel is provided with: an optical system that can increase/decrease a focal distance; and a plurality of operation units. The plurality of operation units includes a first operation unit and a second operation unit. The first operation unit and second operation unit each receives a focal distance increasing/decreasing operation from a user. The first operation unit and second operation unit are each operated along the circumferential direction around the optical axis of the optical system.