A camera system has a rotary mirror type camera assembly including a camera, a
mirror for camera arranged in front of the camera, and a mirror rotating mechanism
driving the mirror for the camera, a rotary mirror type display apparatus including
a monitor displaying an image picked up by the camera, a mirror for monitor arranged
in front of the monitor, a finder permitting viewing of the image displayed on
the monitor via the mirror for monitor, and a casing rotatable together with the
mirror for monitor. The mirror for camera is rotated according to rotation of the
casing and the mirror for monitor being fixed to the casing. When the casing is
rotated, the mirror for monitor is rotated in display direction of the monitor
in front of the monitor.