Shutter timing apparatus

Claim 1

IN A PHOTOGRAPHIC CAMERA ADAPTED TO MAKE EXPOSURES ILLUMINATED EITHER BY LIGHT OF SUBSTANTIALLY CONSTANT INTENSITY OR BY PHOTOFLASH APPARATUS, THE COMBINATION COMPRISING: MEANS DEFINING AN EXPOSURE APERTURE; SHUTTER MEANS MOVABLE WITH RESPECT TO SAID APERTURE TO INITIATE AND TERMINATE EXPOSURES THERETHROUGH; FIRST MEANS OPERABLE TO ACTUATE SAID SHUTTER MEANS TO INITIATE SAID EXPOSURES; SECOND MEANS OPERABLE IN RESPONSE TO TERMINATION OF SAID TIME INTERVAL TO ACTUATE SAID SHUTTER MEANS TO TERMINATE SAID EXPOSURE; TIMING MEANS ADAPTED TO ESTABLISH A TIME INTERVAL BETWEEN OPERATION OF SAID FIRST AND SECOND MEANS, SAID TIME INTERVAL CORRESPONDING TO THAT TIME BETWEEN INITIATION AND TERMINATION OF EXPOSURE WHICH RESULTS IN A DESIRED AMOUNT OF LIGHT PASSING THROUGH SAID APERTURE WHEN SAID LIGHT IS OF SUBSTANTIALLY CONSTANT INTENSITY; MEAN FOR SO SYNCHRONIZING THE MOVEMENT OF SAID SHUTTER MEANS WITH OPERATION OF SAID SECOND MEANS THAT UPON OPERATION OF THE LATTER A TIME DELAY OCCURS BEFORE ACTUAL TERMINATION OF SAID EXPOSURES; AND COMPENSATING MEANS SELECTIVELY OPERABLE TO SHORTEN SAID TIME INTERVAL, WHEREBY SAID TIME INTERVAL, AFTER ADJUSTMENT BY SAID COMPENSATING MEANS, RESULTS IN SUBSTANTIALLY SAID DESIRED AMOUNT OF LIGHT PASSING THROUGH SAID APERTURE WHEN SAID LIGHT IS PROVIDED BY PHOTOFLASH APPARATUS.