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6 REPORT OF THE INSTITUTE OF INDUSTRIAL SCIENCE, UNIVERSITY OF TOKYO 
4. TEST PHOTOGRAPHING AND EXAMPLES THEREOF 
4-1 TEST PHOTOGRAPHING 
Because of its limited outlet, the manufacture of infrared films in Japan has made little 
headway. However, in 1957 “Sakura Infrared 750" film for miniature cameras was put on 
sale by Konishiroku Photo Industry Co. This made it possible to compare photos taken by 
the use of the newly produced film with panchromatic photos. 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Table 2 
Photographic data | Panchromatic photo Infrared photo Remark 
TT Camera | Canon 4 Sb Nikon $2 T i 
Lens f Canon f 135 mm Nikkor f 135 mm 
Film Fuji Neopan SS Sakura Infrared 750 
Filter Y2 R2 
n Diaphragm Hu F:.8 ; F:-4 10-90 
Exposure 1/200 sec JE 1/125, 1/250 sec 1/250 secunderdeveloped 
; Flight altitude 1000 m ; 1000 m 
: Others ; AS D-76 used for developing. Finished in 10 Tn Dow 
The aerial camera was removed from 
the plane and two cameramen, each holding 
a camera in his hand, took panchromatic and 
infrared photos simultaneously from the hole 
where aerial camera was installed. Photogra- 
phic data collected at that time are as shown 
in Table 2. 
4-2 EXAMPLES OF INFRARED 
PHOTOS 
(1) Photo 1 shows the comparison 
between panchromatic photos and infrared 
  
    
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(a) Infrared photograph. (b) Panchromatic photograph. 
Photo. 1