Black Background Single Plumb Line 
  
  
  
  
\ e 
Exposure Station: 1 2 3 4 5 
  
Figure 5. Illustrating how a single plumb line Figure 6. Appearance of a typical 
can be exposed repetitively to generate a well plate employed in a special series of 
distributed set of images. calibrations by the Plumb Line Method. 
Radial Distance r (mm) 
30 40 50 
€ 
3 
5 
$ 
a 
° 
3 
2 
Decentering 
Profile (um) 
10 20 30 40 50 60 70 75 
Figure 7. Various radial and decentering distortion functions as determined by the 
Plumb Line Method for a 135mm Symmar lens. 
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