Single lens reflex camera capable of high speed continuous photography

Claim 1

A single lens reflex camera on which an automatic winding up device can be mounted and which is capable of continuous photographing by repeating the diaphragm operation, the mirror operation, the shutter operation and the winding up operation in sequence by means of the release operation comprising: a lens having a variable diaphragm; a movable mirror; a driving member for stopping-down the diaphragm to a predetermined value and for actuating the movable mirror; charging means for energizing the driving member; means for holding the driving member at its charging position; release means for releasing the holding of the driving member in response to a pressure by a release button, said driving member operating the diaphragm and the mirror before the shutter operation and said member resuming the initial position after the shutter operation so as to bring the diaphragm and the mirror in the initial state; mode change over means for changing over to an ordinary photographic mode where the diaphragm and the movable mirror operate for each photograph taken and a high speed continuous photographic mode where a continuous photographing is performed while maintaining the diaphragm in its stopped-down state and the mirror in its lifted-up state; and prevention means to be displaced in operative engagement with the change over means so as to prevent the operation of the driving member from resuming.