PHOTOGRAPHIC INTERPRETABILITY 7 
  
  
  
  
  
  
      
  
  
      
   
    
     
  
  
  
rom 
liate 
would represent a detail density range of 1.6. In practice to enhance wait 
interpretation of the recorded detail it may be desirable to record at a ‘ove 
gamma somewhat less than unity in order to avoid low contrast detail teps 
occurring at high density where interpretation may be impaired. At high the 
altitude, however, the situation may be quite reversed. " mm 
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legen est- 
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M ER LN ds 
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PT = ble 
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to 
TYPICAL REFLECTANCE VALUES h O- 
— 
| Figure 6 indicates the D-log E relationships at unity gamma for ess 
t the two brightness ranges of Figure 4. The photograph at extreme | 
altitude (indicated at the right) would encompass a density range of 
1 only 0.32 as compared with 1.6 for the low altitude photograph. There 
y AT GROUND LEVEL * AT EXTREME ALTITUDE ell 
> | he 
e co ial 
= = | Densiu Rançe 037 "i 
UN E Curve 
e E = = 
S > = E n- 
= €———— » -; les 
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e BINNEN ann. INI EXPOSURE MEME n- 
on 
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be EXPOSURE COMPARISON he 
in FIGURE 6 he 
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E = = Ta SE UV OS EXEUEINZE CULTUI VE CETT - 
F Are there questions pertaining to Mr acteristic of the particular emulsion. Does this 
\ Maruyasu’s presentation? answer your question? 
  
Archives 6 
  
  
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