- 6 - 
Table 1. 
Principal point (mm 
) • 
Aper 
ture 
Picture 
1 
Picture 
2 
Picture 
3 
Mean 
Square 
root of 
variance 
Degrees of 
freedom 
f: 5. 6 
X 
13.6132 
13.3501 
13. 3362 
13.4332 
0. 2206 
2 
Between 
y 
9. 7241 
9.8660 
9.8730 
0. 8090 
0. 0749 
2 
Between 
s 
X 
0. 1278 
0.1481 
0.1268 
0.1344 
359 
W ithin 
s 
y 
0.0932 
0. 1045 
0. 0895 
0. 0958 
359 
Within 
f:8 
X 
13.3981 
13. 2760 
13.3498 
13.3413 
0. 0615 
2 
Between 
y 
9-8904 
9.7379 
9.8187 
9.8157 
0. 0763 
2 
Between 
s 
X 
0.1291 
0. 1319 
0.1186 
0.1266 
359 
Within 
s 
y 
0.0993 
0. 1036 
0. 0915 
0. 0983 
359 
Within 
fill 
X 
12.9397 
13. 1540 
13.2700 
13. 1212 
0. 1674 
2 
Between 
y 
9.7446 
9.7408 
9.5788 
9.6881 
0. 0946 
2 
Between 
s 
X 
0.1431 
0. 1287 
0. 1551 
0.1427 
359 
Within 
s 
y 
0. 1171 
0. 1007 
0. 1183 
0.1122 
359 
Within 
f: 16 
X 
13.5913 
13.4455 
13.4879 
13.5083 
0.0746 
2 
Between 
y 
9.7913 
9.8032 
9.7561 
9.7835 
0.0234 
2 
Between 
s 
X 
0.0735 
0.0839 
0. 0920 
0. 0835 
353 
Within 
s 
0.0540 
0.0636 
0.0692 
0. 0625 
353 
Within 
y 
Mean x 
y 
Square s 
root of 
s 
variance y 
13. 3510 
9.7741 
0. 1677 0. 1239 
0.0589 0.0940