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 H1f){L97wR
X and Y F-numbers for each field angle V^=z\wBZ
X 1.992151 2.046117 2.172037 2.364546 B=#rp*vwL
Y 1.992151 2.338546 3.121385 4.866429 Y4}!9x
0 .999 .999 .999 )h,+>U@
10 .986 .986 .984 Lw?4xerLsb
20 .971 .971 .963 e|+U7=CK
30 .957 .957 .939 @D-l_[
40 .942 .943 .913 &}VGC=F;d
50 .928 .929 .883 bV&/)eqv
60 .914 .914 .853 H^p?t=Y
70 .899 .900 .821 ^<$dTr'
80 .885 .886 .789 |uQJMf[L)
Ot(U_rJCi
第二列为理想的MTF值,最后一列为实际值,