本人覺得,由于畸變的存在,使得不同視場具有不同的焦距,其必然引起不同的F數(shù)
S;sggeP7, X and Y F-numbers for each field angle
yoGe^gar X 1.992151 2.046117 2.172037 2.364546
K:gxGRE Y 1.992151 2.338546 3.121385 4.866429
f=]+\0MQ 0 .999 .999 .999
/{vv n 10 .986 .986 .984
qqA(Swe)T 20 .971 .971 .963
td%]l1 30 .957 .957 .939
()e.J 40 .942 .943 .913
_eb:"(m 50 .928 .929 .883
Tqz{{]%j~$ 60 .914 .914 .853
@]P#]%^D2 70 .899 .900 .821
p \A