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 #J3}H
X and Y F-numbers for each field angle :zo5`[P
X 1.992151 2.046117 2.172037 2.364546 8pA<1H%
Y 1.992151 2.338546 3.121385 4.866429 &QD)1b[U
0 .999 .999 .999 Eo^m; p5
10 .986 .986 .984 fsK=]~<g
20 .971 .971 .963 @=AQr4&
30 .957 .957 .939 LKI\(%ba#
40 .942 .943 .913 n6,YA2yZO
50 .928 .929 .883 @,= pG
60 .914 .914 .853 ]!!?gnPd5
70 .899 .900 .821 [O ^/"Qk
80 .885 .886 .789 Q5dqn"?
FXY>o>K%h
第二列为理想的MTF值,最后一列为实际值,