39 
0.43 c °-4S c 
1 * 1 
Fig. 8. 
Geometric properties of 
photography of a thrfce-di- 
mensional test object con 
sisting of fourtyfive points 
in four planes, one having 
eighteen points. The cor 
responding weight and 
correlation numbers are 
given in Table 3. The sb 
called basement ’’cage” is 
developed from this idea, 
see Fig. 9. 
Table 2. Weight and correlation numbers. Wide angle. Ah — 0.5 h. 
X 0 
^0 
c 
‘*0 
cY 0 
o 
N 
C CO 
c cp 
C X 
*0 
1.54 
>>0 
0 
1.54 
c 
0 
0 
1.16 
cXo 
0.33 
0 
0 
0.22 
cY 0 
0 
0.33 
0 
0 
0.22 
c Z Q 
0 
0 
—0.69 
0 
0 
0.46 
C CO 
0 
0.80 
0 
0 
0 
0 
0.64 
c cp 
—0.80 
0 
0 
0 
0 
0 
0 
0.64 
C X 
0 
0 
0 
0 
0 
0 
0 
0 
0.12