Table 1 Values of distortion measured from flash Table 3 The values are for the same lens-camera 
plates exposed on the camera focal plane. unit described in Table 1 and 2 except 
the camera's film magazine was used to 
make test exposures of the collimator 
banks, and from these exposures contact 
glass diapositives were made for the 
evaluation of distortion and calibrated 
focal length. 
FIELD| AVERAGE AZIMUTH ANGLES FIELD| AVERAGE 
ANGLE DISTORTION|O A-C [90 A-D |180 B-D|270 B-C ANGLEÍDISTORTION|O A-C |90 A-D|[180 B-D|270 B-C 
7.50 -0.002 -0.000|-0.002 |-0.002 |-0.003 7.50| -0.003 -0.002|-0.001|-0.003 |-0.006 
15.00 -0.004 -0.003{-0.004 |-0.004 |-0.004 15.007 -0.004 —0.001|-0.007|-0.001 |-0.004 
22.75 -0.004 -0.002|-0.004 |-0.005 |-0.004 22.75] -0.003 -0.001|-0.004/-0.002 |-0.006 
30.00 0.001 0.002} 0.000 0.002 0.001 30.00 0.002 0.004/-0.003{; 0.003 |-0.001 
35.00 0.005 0.007} 0.002 0.005 0.004 35.00 0.004 0.009| 0.002}; 0.005 0.001 
40.00 -0.001 -0.000|-0.002 0.002 |-0.004 40.00| -0.005 -0.004|[-0.008] 0.002 |-0.005 
CALIBRATED FOCAL LENGTH 153.350 mm CALIBRATED FOCAL LENGTH 153.371 mm | 
| 
Table 2 Flash plate mean lens distortion Table 4 Contact glass diapositves mean lens 
correction values at 1 mm intervals and distortion correction values at 1 mm 
computer generated distortion curve. intervals and computer generated 
distortion curve. 
THE MEAN RADIAL OISTORTION CORRECTION VALUES AT ] MM, INTERVALS THE MEAN RADIAL DISTORT ION CORRECTION VALUES AT 1 we. INTERVALS 
FROM TO Fhün To 
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51 60 3e 3. 3. 3. Ze 2. 1 Be ? Ze 51 60 36 3e 34. 439. Ze Ze 2. Ze Ze 72. 
él 0 2.32. de d." 1] d 4 de d$ Lb 61 70 2e 14 1. d. le 3. be 0° 0 0 | 
71 80 0. 0. De he -00 -0. =0. -0. -1. -1l. 71 80 -0. -0. -0. -1. -1. -l1. -1. <1 -1. =i. | | 
81 90 ele -1. -1. -1. -1)» -). -1. -1. -2. =2. el 90 -2. -2. -2. -2. —-2. -2. -2.--2. -2. -2. | i | 
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MEAN AADIAL DISTORTION CURVE 
RADI AL MEAN RADIAL DISTORTION CURVE RADIAL 
DISTORTION FO 2 SET(S) OF DATA DISTORTION FOR 4 SET(SI OF DATA : 
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-20* RADIAL DISTANCE (ww. -20* RADIAL OISTANCE (AM. ) 
96