SE EN NEE PATE 
    
            
   
  
  
1.0r | 
MTF 
w. filter 
\ 
10 lines/mm N NC 
w/o filter | 
0.5} w. filter T, 
w/o filter 
| 
| ] | | 
a 0.2375 0.475 0.7125 
Image Height 
Figure 8. Effect of A.V.Filter in Camera D. 
| 
ie 
5.3 Presentation of Measured MTF 
In Figure 5 and 7 are shown different ways of MTF presentation. 
The former is the usual one in which image height is used as a | 
parameter. By using one graph of this type we can practically | 
illustrate on the averaged curve for the four radial directions. | 
The latter is very convenient to examine image height characteristics 
and also to illustrate deviation from symmetry.