photometry after the focusing is ascertained main exposure is started when the exposure is finished the image signal outputted from the solid state image sensor 104 is a d converted in the a d converter 106 and then passes through the signal processing unit 107 and is written in the memory unit 110 by unit 109 controlling whole and arithmetic operation thereafter the data accumulated in the memory unit 110 passes through the i f unit 111 controlling recording medium and is recorded on the removable recording medium 112 such as the semiconductor memory under the control of unit 109 controlling whole and arithmetic operation further the data may be inputted to a computer and the like directly through the external i f unit 113 to work the image an embodiment in which the solid state image sensor according to the present invention is applied to a video camera will be fully explained with reference to fig1 fig1 is a block diagram showing a case where the solid state image sensor according to the present invention is applied to the video camera in fig1 a photo taking lens 201 comprises a focusing lens 201 a for performing focus adjustment a zoom lens 201 b for performing a zooming operation and a.