Koss Wide Angle lens 
  
  
  
C- /12623m 
h- 2600m 
Oo 4 = 
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Le L + f 
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20 / 60 se 
+ \ / 
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, A / 
— — — —— the Parallax Method 
S mI the Horizon Method 
Fig. 3. 
preliminary hardener bath (Kodak Prehardener SH-5) was used. Then 
the films were developed in Kodak Developer DK-60 A and rinsed in a 
Kodak Stop Bath SB-5. For fixing Kodak Rapid Liquid Fixer with 
hardener was used, and after washing the films were bathed in Kodak 
Photo Flo Solution during four complete cycles. 
As no drying drum was available the films were dried hanging on 
a nylon-line with simple clips on every other exposure. Measurements 
have shown that this method of drying has not caused stretching or 
lengthening. 
A film which was developed in Stockholm a week after the exposure 
gave equivalent results with reference to the resolving power. Films 
which were developed in Stockholm about four weeks after the expo- 
sure did not show the same good result. 
Tests and mapping from the photographs 
A number of strips were treated by engineer Tore Granér in the 
autographs Wild A 5 and A 7. In connection herewith y-parallax meas- 
urements in nine symmetrically located points were carried out as ba- 
sis for further trials. The standard error of the y-parallax measure- 
ments in the image was found around == 0,006 mm. 
From the result of the treatment the following orientation data were 
also collected: 
    
    
   
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
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