MTF optimization by automatic adjustment of aberration merit function

I present a fast MTF optimization method. In this MTF optimization the aberration merit function is optimized. The basic concept of this MTF optimization is to connect the improvement of the aberration merit function to the improvement of the MTF merit function. The target values and weights of aberration target functions are automatically adjusted in order that the improvement of the aberration merit function is also linked to the improvement of the MTF merit function. Through exmaples it is shown that the MTF optimization used with the global optimization is effective to find good solutions as to the MTF merit function.