Abstract: An apparatus for protecting the image recording media in a tracking camera rom destructive illumination. The apparatus includes a shutter assembly mounted between the lens and the camera and a sensor assembly mounted in juxtaposition with the camera so that a sensor at one end of the tube in the sensor assembly detects destructive illumination before it impinges on the lens. The sensor causes a signal to be passed through circuitry connecting to the shutter assembly, activating a rotary solenoid which moves a blade to an interrupting position between the lens and the camera until no further destructive illumination impinges on the sensor. The shutter blade return to a non-interrupting position when the sensor no longer receives destructive illumination.