A display system for use in a controlled vehicle is provided, and includes a rearview assembly having a display device located behind a mirror element, a camera system configured to acquire images of a scene external of the controlled vehicle, and a processing system configured to receive a signal representative of the acquired images and to produce an image of the scene on the display device of the rearview assembly, wherein the processing system is further configured to adjust the photosensitivity of the camera system based on an input from at least one of an ambient light sensor and a direct glare sensor.