IMAGE INPUT APPARATUS FOR CAPTURING IMAGES OF MULTIPLE RESOLUTIONS

To transfer an image signal from a electronic camera head to a personal computer, a PC card provides the interface between the camera head and the personal computer. The PC card is removably attached to the personal computer. As instructed by the personal computer, the PC card operates the camera head, sets its states, writes image data into a memory, reads the image data from the memory for transmission to the personal computer, generates control signals for a light refracting member, and informs the personal computer of the state of the camera head.