This paper describes a recently developed system which enhances the human decision-making capability in analyzing and interpreting aerial photography. Advanced tactical multi-sensor recon-naissance missions will provide four separate rolls of film which require interpretation. Since each roll of film covers approximately the same area, it is advantageous to view all four at the same time, with each running at its appropriate speed so that the same images on all four rolls can be viewed simultaneously. The Multi-Sensor Viewer, with its various functions of simultaneous scanning of panoramic, frame, infrared and SLR photography; comparison viewing of tactical target records and map chips; mensuration, printing and processing, and stereo-viewing, will be described. In addition, a brief discussion of its integration within the Image Interpretation Central will be presented. The Multi-Sensor Viewer was designed and developed as part of the Image Inter-pretation Central (IIC) AN/MSQ-58, for the Rome Air Development Center under Air Force Contract AF30(602)-2882.