在MTF文本中可以以看到，但不知道怎么提取出來 \tY7Ga%c  
FIELD (X,Y)=( 0.00, 0.61)MAX, (  0.00, 65.00)DEG       keStK8  
      RELATIVE ILLUMINATION =  45.0 PER CENT               Ocn@JOg  
     ILLUMINATION (UNIT BRIGHTNESS) = 0.022769            
QL2 `X2  
      DISTORTION = -16.31 PER CENT *SpE XO  
      RELATIVE ILLUMINATION =  45.0 PER CENT                850.0 NM       1      1180 0f
K#:6  
      ILLUMINATION (UNIT BRIGHTNESS) = 0.022769             830.0 NM       1      1236 =kCiJ8q|  
      DISTORTION = -16.31 PER CENT

見過一個，拋磚引玉，@RI=（（M FL R2 SI）-(M FL R3 SI))*(L FL R4 SI)/2*(M F1 R2 SI)**2 Wg<o%6`