supagi |
2007-01-13 12:03 |
本人觉得,由于畸变的存在,使得不同视场具有不同的焦距,其必然引起不同的F数 Y<Ae_yLa X and Y F-numbers for each field angle *7*cWO= X 1.992151 2.046117 2.172037 2.364546 @`B_Q v@ Y 1.992151 2.338546 3.121385 4.866429 $rQ7"w J 0 .999 .999 .999 \uo{I~Qd 10 .986 .986 .984 Yevd h< 20 .971 .971 .963 PL31(!`@d 30 .957 .957 .939 s4f{ziLp 40 .942 .943 .913 )j}#6r 50 .928 .929 .883 $P8AU81 60 .914 .914 .853 0RSzDgX 70 .899 .900 .821 ryzNM3 80 .885 .886 .789 .*"KCQGOgM SCn)j:gH; 第二列为理想的MTF值,最后一列为实际值,
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