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 ;%xG bg!lg X and Y F-numbers for each field angle -.hH,zm X 1.992151 2.046117 2.172037 2.364546 QlWkK.<Z3_ Y 1.992151 2.338546 3.121385 4.866429 _tVrLb7`s 0 .999 .999 .999 iuWw(dJk 10 .986 .986 .984 }7/Ob)O 20 .971 .971 .963 r;OE6}L> 30 .957 .957 .939 YX19QG% 40 .942 .943 .913 _D."KU| 50 .928 .929 .883
B,RHFlp{ 60 .914 .914 .853 v9vY#W 70 .899 .900 .821 `jH 0FJQ 80 .885 .886 .789 )lB*]
n`Z] wvg>SfV,e 第二列为理想的MTF值,最后一列为实际值,
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