PURPOSE: A camera location decision device is provided to extend a posture range of a photographable camera and to extend a photography range of a system for various multiple cameras. CONSTITUTION: An optical system of a camera (10) is configured in a lens barrel (30). A swing unit (100) supports a camera body (20) connected to the lens barrel by being engaged with a part of the lens barrel in a floating state and modifies a posture of the camera by rotating the lens barrel. An interface controls the swing unit.
