the shutter using the shutter mechanism winding the film by the film winding mechanism and ending this sequence of operations in s 1300 the decision unit 30 stops the calculation of variance values by the variance value calculation unit and the target value calculation unit 35 stops the calculation of target values in s 1400 the angular velocity sensor 10 is turned off in s 1000 when it has been determined that the half depression timer 90 is off the electrical power supply unit 130 simultaneously with the off operation of the half depression timer 90 stops the supply of electrical power to the angular velocity sensor 10 in s 1500 the timing of the half depression timer 90 stops the half depression timer 90 stops timing simultaneously with the off operation of the half depression switch 90 and the operation of the sequence ends the processing flow of calculations of the decision unit in the vibration motion detection device according to the first mode of embodiment of the present invention will next be described fig3 is a flow chart which illustrates the processing flow of calculations of the decision unit in the vibration motion detection device according to the first preferred embodiment of the present invention fig3 gives a detailed description of s.