FIGURE 
The Fairey Surveys Multispecteal Camera System 
  
   
   
Colour of 
Black parts 
original after first 
9! development 
YELLOW — > 
—- 
GREEN 
* — 
LR 
^ RED ET 
* — > 
IR. irs 
YELLOW +] —> 
Three- layer 
sensitive 
film 
  
Positive after 
reverse 
  
development 
  
   
   
    
Positive as 
seen on 
light 
      
   
  
   
  
EXAMPLES OF VEGETATION TYPES 
table 
= | 
  
  
  
[Diseased o or deficient foliage 
| Dead needles of conifers which no longer reflect IR. or green 
  
[ratowing and dead leaves of vegetation under stress 
[Dead trees devoid of leaves or or “needles 7] 
[Partly d diseased foliage-causes response in all 3 layers- no dye formas) 
  
[Young grass : 
Healthy broadieats in Spring and Summer 
  
Pi 
Bright red 
Magenta 
Purple Brown] 
Healthy deciduous green foliage 
  
    
   
Healthy conifers and broadieats 3 
Vegetation without chlorophyl, or damagad vegetation. 
Conifers under stress 
Partly y damaged t. leaves and ne needles. SERM 
nk 
  
  
  
  
  
(blue 
+ 
green) 
\ 
  
(red 
* 
green) 
  
  
  
  
  
  
  
  
  
Yel 
ito ] [venow autumn leaves 
  
[vegetation under stress 
low [ 
4 Red autumn leaves do not reflect green, only red and 1 T 
— 
  
  
FIGURE 2 - Key to detecting vegetation stress on colour 
infra-red film