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 ~a'nHy1
X and Y F-numbers for each field angle r +p@X
X 1.992151 2.046117 2.172037 2.364546 PoYr:=S?
Y 1.992151 2.338546 3.121385 4.866429 =w',-+@
0 .999 .999 .999 "C:rTIH
10 .986 .986 .984 ^H5w41
20 .971 .971 .963 _-@ZOhw&
30 .957 .957 .939 b:fxkQm
40 .942 .943 .913 W$z#ssr
50 .928 .929 .883 ,pDp>-vI%
60 .914 .914 .853 yD"]{
70 .899 .900 .821 *TJBPM,
80 .885 .886 .789 5"1!p3`\D{
`xISkW4 %
第二列为理想的MTF值,最后一列为实际值,