| supagi |
2007-01-13 12:03 |
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 gO*Gf2AG X and Y F-numbers for each field angle ubZuvWZ X 1.992151 2.046117 2.172037 2.364546 ]3|h6KWq Y 1.992151 2.338546 3.121385 4.866429 +KExK2= 0 .999 .999 .999 ?nu<)~r53 10 .986 .986 .984 i@P=*lLD 20 .971 .971 .963 =;n>#< 30 .957 .957 .939 OY|9V 40 .942 .943 .913 o6 NmDv5 50 .928 .929 .883 SZ4y\I 60 .914 .914 .853 WSeiW 70 .899 .900 .821 @>'Wiq! 80 .885 .886 .789 _}\KC+n8 G M;uwL# 第二列为理想的MTF值,最后一列为实际值,
|
|