Union of 
Soviet Soc. 
lines interval 
  
Image scale depends always on cont 
2 
and altimetric aceuy 
Republics Cy. As a matter of fact, these fac. 
tors are determined by the characte 
of the country surveyed. 
Ad 3.21  D,20,3-0,6 #= 0,8-1,2 (mountain 
Dos 71» 2 71,4-1,8 (flat cou 
Dyax 51,6 ADhin 92 
Uruquay 1 Ad 3.21 D z0,3 270,83 
Dax 1:5 
There is some disagreement 
rances for image quality) and 3.25b 
for image quality). It is understood 
subjectively without any measuring. 
between answers 3.21 (no tole- 
(e.g. all photographs are chet 
so, that quality is checked ju 
  
  
  
Country 
  
  
Austria 
  
Belgium 
  
Brazil 
  
Bulgaria 
  
Burma 
  
Cambodge 
  
Canada 
  
Czecho- 
Slovakia