There are obverse and adverse projection two methods for measure modulation transfer function(MTF) of lens.

镜头调制传递函数（MTF）的测量有正投影和逆投影两种方法。

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There are obverse and adverse projection two methods for measure modulation transfer function(MTF) of lens.

镜头调制传递函数（MTF）的测量有正投影和逆投影两种方法。

youdao