FIELD: systems controlling exposure to obtain images of moving objects or objects under changing conditions of illumination. SUBSTANCE: proposed system determines value of exposure, measures light reflected from object whose image should be recorded when starting key of first stage operates. Image of object is recorded under calculated value of exposure when starting key of second stage operates. If time between operations of starting key of first stage and starting key of second stage exceeds established interval then circuit determining value of exposure measures light intensity second time and calculates new value of exposure. If established time interval is exceeded again before operation of starting key of second stage then circuit determining value of exposure measures light intensity anew and calculates new value of exposure. EFFECT: correct value of exposure is obtained even under changing conditions of illumination. 10 cl, 5 dwg
