A special timing control unit to synchronize the OMA 1205 with a SIT vidicon for a pulsed laser apparatus has been developed. Under special timing conditions the range of linearity of the vidicon response can be enhanced by a factor of 25. The results for the vidicon response as a function of illumination intensity under the realistic conditions of a transient state measurement are presented together with reference data obtained without utilizing the unit. In both cases optimum linearity is achieved with counting rates of about 20 counts/shot only.