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 (/gv
U80
X and Y F-numbers for each field angle FP=up#zl
X 1.992151 2.046117 2.172037 2.364546 Kd r7 V
Y 1.992151 2.338546 3.121385 4.866429 MpK3+4UMa
0 .999 .999 .999 ~ECIL7,
10 .986 .986 .984 8NnGN(a*D
20 .971 .971 .963 O:E0htdWr
30 .957 .957 .939 {'8td^JEE
40 .942 .943 .913 ^/~ZP?%]
50 .928 .929 .883 XQ3"+M_KG
60 .914 .914 .853 t]IHQ8
70 .899 .900 .821 #7Fdmnu`
80 .885 .886 .789 whi#\>i
fV#,<JG
第二列为理想的MTF值,最后一列为实际值,