Abstract: An X-ray diagnosis apparatus for fluoroscopy and exposure includes an image-intensifier-television chain, a device for controlling the dose rate during X-raying, means fixing the exposure data from X-raying data and an automatic exposure timer. The invention is particularly characterized by the provision of a function generator which receives a signal corresponding to the X-raying voltage and produces therefrom an output signal operating the setting means for the exposure voltage, and wherein is programmed the shape of the photographing voltage depending upon the X-raying voltage.