Flight Altitude and Resolving Limit 
Aviogon 1/56 Washer -target 
Variable contros?: “Multiline” 
  
  
290 km/h 
/09 E E E t E 
test 9 9 3 o 6 
contrast © N © * eo 
- — «a M 
024 
0.6 .. 
05 _ 
0.4 _ 
0.3 | : 
0.2 _ / /g. 9 
0._ 
0.0 frequency 
5 10 15 20 1/mm 
Contrast Transfer Functions 
for the entire aerial photogrophic system 
Nr Lens Emulsion Shutter Vibration Velocit j4 Altitude Hoze 
speed sec rod/sec km/h m 76 
I In Plus X /250 0. 01 900 10000 10 
2 IT Plus X /250 0.02 290 4 600 5 
3 LE Plus X /250 0.02 290 2 000 2 
4 Plus X /250 0. 02 200 500 0 
I Tri X /150 0.02 200 500 0 
5 iz Plus X /250 0.02 200 100 0 
I TrioX 7750 0.02 200 100 0 
CT Cr 
x A 
i Filo = Fig. // 
    
504 
  
  
   
  
27 Frequency 0 Frequency 
  
  
  
0 10 20 30 40 1/mm 0 10 20 30 40 1/mm 
Contrast Sensitivity of the Eye 
Viewing distance 25 cm 
/0 periods test pattern 50 lux 
  
  
contrast 
l.o- ° 
F9. 72 
0.5- 
0.0 : Frequency 
0 5 10 L/mm