Photographic objectives with distance adjustment and diaphragm adjustment

Claim 1

A PHOTOGRAPHIC OBJECTIVE, A LENS MOUNT, LENSES FIXEDLY MOUNTED IN SAID LENS MOUNT IN AXIALLY ALIGNED POSITION, A DIAPHRAGM SUPPORT INTEGRALLY FORMED WITH SAID LENS MOUNT AND HAVING AN ADJUSTABLE DIAPHRAGM ATTACHED THERETO IN AXIAL ALIGNMENT WITH SAID LENSES, A STATIONARY MOUNTING SLEEVE, MEANS FOR MOVING SAID LENS MOUNT IN AXIAL DIRECTION ON SAID MOUNTING SLEEVE DURING THE FOCUSING OPERATION OF THE OBJECTIVE, MEANS FOR ADJUSTING THE OPENING OF SAID DIAPHRAGM, AN ANNULAR SLEEVE ARRANGED ROTATABLY BETWEEN SAID LENS MOUNT AND SAID STATIONARY MOUNTING SLEEVE IN AN AXIALLY FIXED POSITION, SAID LENS MOUNT BEING MOVED IN AN AXIALLY DIRECTION RELATIVE TO SAID ANNULAR SLEEVE WHEN THE LENS MOUNT IS FOCUSED BY SAID LENS MOUNT MOVING MEANS, SAID ANNULAR SLEEVE BEING COUPLED TO SAID DIAPHRAGM ADJUSTING MEANS AND BEING PROVIDED ON ITS INNER WALL WITH A HELICAL GROOVE, SAID DIAPHRAGM INCLUDING A ROTATABLE ADJUSTING RING PROVIDED WITH AN OUTWARDLY EXTENDING ARM PROJECTING THROUGH A SLOT IN SAID LENS AMOUNT AND INTO SAID HELICAL GROOVE, WHEREBY SAID DIAPHRAGM CAN BE ADJUSTED BY SAID DIAPHRAGM ADJUSTING MEANS TO A PRESELECTED POSITION AND UPON AXIAL ADJUSTMENT OF SAID LENS MOUNT SAID OUTWARDLY EXTENDING ARM WILL SLIDE IN SAID HELICAL GROOVE AND THEREBY CORRECT THE APERTURE OF SAID DIAPHRAGM FROM ITS PRE-SELECTED POSITION TO A LARGER DIAPHRAGM OPENING POSITION WHEN THE CAMERA IS FOCUSED FOR DECREASED DISTANCES.