A method and apparatus for conversion of signals from a first type of image sensor to a second type of camera control unit is presented. A first interface is provided for enabling electrical communication between the conversion module and an image sensor, the image sensor being interchangeable between a Complimentary Metal Oxide Semiconductor (CMOS) and a Charge Coupled Device (CCD) image sensor. A second interface is provided for enabling electrical communication between the conversion module and a camera control unit (CCU). Also provided is conversion circuitry in communication with the first interface and the second interface, the conversion circuitry receiving signals of a first type from the first interface, converting the signals of a first type to signals of a second type and providing the signals of a second type to the second interface.