Abstract: An imaging device is composed of a main body casing and a monitor casing, which coincide with each other in their lengthwise direction when not in use at a first position and which, when in use at a second position, are swung relative to each other about a first pivot such that their lengthwise directions form an angle of 90 degrees. The monitor casing is made up of a first casing in which there exists the first pivot and a second casing which is joined to the first casing such that it swings about the second pivot. The first pivot is placed at a position displaced toward the left lateral side from the center of the width of the main body casing so that the second casing is positioned outside the left lateral side of the width of the main body casing when in use at the second position.