In a method for operating of a dental camera to which having an illumination device with at least one light source for illuminating a tooth under examination with illuminating light, and also an image processing device are allocated, at least one first image and one second image are recorded, wherein between the first and the second image at least one property feature of the illuminating light is varied, preferably its angle of incidence onto the tooth, and wherein the images are compared by the image processing device in order to determine any overexposure.