అన్వయ మార్గదర్శక పుస్తకం (పూర్తి సూచనలు)

53
  
A, B, C,  D  (   )
   
      f   
         
.
   
          
           
.
F-  
  ,      
      .
C    F-
  , f  .. 
      
  .
  f     .
     ,    f
.
 
 ( f )     
( f)     .  f  ,
 f    .

1/1000 

1/30 
 f
( )
f/3.4
 f
( )
f/8