Radial Distortion 
Lens Summaron no 1972444 
The Grid Method 
c = 36 6 mm, h= 1.00 m. 
f / 2 8 
dr' microns 
Si= 18 1.9 2,0 2.5 3.0 2.2 2.1 2.4 3.9 5.4 5 5 4.8 f/22 
Fig. 1. 8:1. Basic geometrical data of photographs for 
measurement in medicine. 
Radial Distortion 
Lens: Pancolor 
The Grid Method 
cr 1074 m, h: 90mm 
f/ 2 
— f / ‘8 
(/ 22 
dr microns 
♦ 6ot 
_ eoi Standard errors of unit weight 
S 0 r 1 1 2.0 83 71 152 21 9 71 3 8 15 2 - microns (/2 
S 0 i 1.9 1 8 1 2 1.9 1.4 38 3.2 34 31 3.7 f/8 
Si= 28 29 3.3 29 2 9 3.1 3.4 2 6 42 4 6 — f/22 
Fig. 1. 8:2. Basic geometrical data of photographs 
for measurement in medicine. 
Radial Distortion in X-Ray Photographs on film from an 
image - intensifier. 
dr' microns 
Image scale about 1:13 
The grid method 
Fig. 1.8:3. Basic geometrical data of photographs 
from X-ray instrument, image-inten 
sifier and recording camera.