Abstract: In corona discharge photography method for photographing a speciman which utilizes a pulse generator, an amplifier, an electrode and a photographic medium, the improvement comprising providing a transmittance column and filling the transmittance column with an image-carrying solution and disposing the filled column between the electrode and the speciman, whereby to transmit corona discharge from the electrode to the speciman, the corona discharge occurring back and forth through the image-carrying solution to expose the photographic medium, such exposure occurring in part by transmittance column reflection.