| 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 P\2UIAPa\b X and Y F-numbers for each field angle &'d3Yt X 1.992151 2.046117 2.172037 2.364546 AI\|8[kf0 Y 1.992151 2.338546 3.121385 4.866429 m6^n8% 0 .999 .999 .999 TIre,s)_ 10 .986 .986 .984 \zGmZZ 20 .971 .971 .963 eY#_!{*Wn 30 .957 .957 .939 @<,YUp,%S 40 .942 .943 .913 xY94v 50 .928 .929 .883 {;| >Qn 60 .914 .914 .853 =UMqa;\K 70 .899 .900 .821 <9jN4hV 80 .885 .886 .789 6A,-?W'\ + tza]r: 第二列为理想的MTF值,最后一列为实际值,
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