With WDR technology, the camera lens uses different shutter speeds to allow more light in some areas of the image and less light in others, those that are brighter. The sensor’s exposure to light it receives from outside is controlled to achieve a compensated image. A higher speed is used in lighter areas, so the sensor is exposed to light for less time. The shutter speed is slower in darker areas, causing the sensor to capture more light for a longer time. Both images are combined to obtain a final image with intermediate lighting. If we have a monitoring camera from inside a building through a window, the areas further away from the glass will appear lighter, while those that are closer will appear darker. With double exposure, thanks to WDR technology, we will achieve a sharp and balanced image in which all the space will appear with the same level of illumination.