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 oc?,8I[P5 X and Y F-numbers for each field angle iOPv
% [ X 1.992151 2.046117 2.172037 2.364546 \v9IbU*js Y 1.992151 2.338546 3.121385 4.866429 PP/M-Jql) 0 .999 .999 .999 *6e`km 10 .986 .986 .984 oaHg6PT! 20 .971 .971 .963 If\u^c 30 .957 .957 .939 }D xXt 40 .942 .943 .913 e{:P!r
aM 50 .928 .929 .883 Kpz>si?CL 60 .914 .914 .853 OZ&J'Y 70 .899 .900 .821 'Z+w\0}@ 80 .885 .886 .789 ,IA0n79 PH9MB 第二列为理想的MTF值,最后一列为实际值,
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