To provide a camera with a photographic picture frame switching function constituted so that a horizontal format photographing action and a vertical format photographing action can be executed in a state where the camera is held in a fixed posture.

When a switching lever 28 is positioned on a horizontal format photographing system side, an exposure frame 68A formed of a switching frame 32 and a switching frame 34 becomes the exposure frame for the horizontal format photographing action. When the lever 28 is moved to a vertical format photographing side, a driving wheel 30 is started to be turned with a photographing optical axis 70 as a center and the frames 32 and 34 are started to be moved by the action of a dowel pin 50 and long holes 40 and 46 and the action of a dowel pin 52 and long holes 42 and 48. Then, when the lever 28 is positioned on the vertical format photographing side, the exposure frame formed of the frames 32 and 34 becomes the exposure frame for the vertical format photographing action.