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 |j VM&R2s
X and Y F-numbers for each field angle Nqrmp" ]
X 1.992151 2.046117 2.172037 2.364546 bIEhgiH
Y 1.992151 2.338546 3.121385 4.866429 ^8@Iyh
0 .999 .999 .999 aMvI?y {
10 .986 .986 .984 "sl1vzRN
20 .971 .971 .963 w);6K[+;
30 .957 .957 .939
NsJ(`zk:
40 .942 .943 .913 Ns[ym>x#2
50 .928 .929 .883 2w-51tqm
60 .914 .914 .853 I<8sI%,s
70 .899 .900 .821 >$,y5 AJ&
80 .885 .886 .789 y;AL'vm9
8krpowVs~
第二列为理想的MTF值,最后一列为实际值,