The Sixtomat F2 offers flexible incident and reflected light measurement with either aperture or shutter priority pre-selection, exposure value display, extremely long exposure times of up to 60 minutes and contrast range display in 1/2 f-stops on the additional, analog f-stop scale. In the case of flash measurement with or without synchronizing cable, the f-stop for prevailing ambient light is also displayed next to the recommended f-stop. In this way, precise flash illumination and the degree of brightening or the dominance of the flash can be ascertained, and foreseeable, reproducible results can be obtained. Any desired radio transmitter can be connected to the synchronizing socket, which triggers the individual flashes when the measurement key is pressed. Depending on the selected setting, display of exposure values appears in full, 1/2 or 1/3 stop increments.