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 7
b{y
X and Y F-numbers for each field angle s0'6r$xj
X 1.992151 2.046117 2.172037 2.364546 -HRa6
Y 1.992151 2.338546 3.121385 4.866429 4JL]?75
0 .999 .999 .999 X$=/H 6R5Z
10 .986 .986 .984 eC_i]q&o|
20 .971 .971 .963 .SDE6nvbW
30 .957 .957 .939 &X,6v
40 .942 .943 .913 :Aj[#4-=
50 .928 .929 .883 p-h(C'PqF
60 .914 .914 .853 SqVh\Nn
70 .899 .900 .821 :ay`Id_tm
80 .885 .886 .789 T3t
w.yh
7)BK&kpVr
第二列为理想的MTF值,最后一列为实际值,