- 34 - 
Table 2 
Summary of Data Obtained on CovoKon 12 
inch 
Lens 
+ ÎA 
A. Narrow spectral Band (546 nm) 
Angular Focal 
Line 
1 
2 
3 
4 
5 
6 
7 
8 
Field Position 
Orientation 
PTB 
RAE 
BBC 
I0R 
SIRA 
ITEK 
0TI 
NBS 
1. 
0° 0.00 mm 
T 
X 
X 
X 
X 
X 
X 
X 
X 
2. 
R 
X 
X 
X 
X 
X 
X 
0 
0 
3. 
0.10 mm 
T 
X 
X 
X 
X 
X 
X 
X 
X 
1. ; l 
4. 
R 
X 
0 
X 
X 
X 
X 
0 
0 
5. 
-0.10 mm 
T 
X 
X 
X 
X 
X 
X 
X 
X 
6. 
R 
X 
0 
X 
X 
X 
X 
0 
0 
7. 
0.20 mm 
T 
0 
X 
X 
X 
0 
X 
X 
X 
8. 
R 
0 
0 
X 
X 
0 
X 
0 
0 
9. 
-0.20 mm 
T 
0 
X 
X 
X 
0 
X 
X 
X 
10. 
R 
0 
0 
X 
X 
0 
X 
0 
0 
11. 
0.30 mm 
T 
0 
X 
X 
X 
0 
X 
X 
X 
12. 
R 
0 
0 
X 
X 
0 
X 
0 
0 
13. 
-O.3O mm 
T 
0 
X 
X 
X 
0 
X 
X 
0 
14. 
R 
0 
0 
X 
0 
0 
X 
0 
0 
15. 
+15° 0.00 mm 
T 
X 
X 
0 
X 
X 
X 
0 
X 
16. 
R 
X 
X 
0 
0 
X 
X 
0 
0 1 
17. 
+0.10 mm 
T 
X 
X 
0 
X 
X 
X 
0 
X 
18. 
R 
X 
X 
0 
0 
X 
X 
0 
0 
19. 
-0.10 mm 
T 
X 
X 
0 
X 
X 
X 
0 
0 
20. 
R 
X 
X 
0 
0 
X 
X 
0 
0 
21. 
-15° 0.00 mm 
T 
X 
X 
0 
X 
X 
0 
0 
0 
22. 
R 
X 
X 
0 
0 
X 
0 
0 
0 
23. 
0.10 mm 
T 
X 
X 
0 
X 
X 
0 
0 
0 
24. 
R 
X 
X 
0 
0 
X 
0 
0 
0 
25. 
-0.10 mm 
T 
X 
X 
0 
X 
X 
0 
0 
0 
26. 
R 
X 
X 
0 
0 
X 
0 
0 
0 
27. 
+15° Best Actual T 
X 
X 
0 
X 
0 
X 
X 
X 
Focus 
11 
■BHB