21
Appendix
Color Code of the Shims
Shimming Table
Minus sign:
Enlarge the flange focal distance.
Remove Shims
Plus sign:
Reduce the flange focal distance.
Add Shims
Meter distance scale
Feet distance scale
Distance to test chart [mm]
3000
Distance to test chart [ft]
10
Object distance
at best focus [mm]
Change of total
washer thickness [mm]
Object distance
at best focus [ft]
Change of total
washer thickness [mm]
2960
-0,05
9ft 10’
-0,06
2970
-0,04
9ft 10 1/2’
-0,05
2980
-0,02
9ft 11’
-0,03
2990
-0,01
9ft 11 1/2’
-0,02
3000
0,00
10ft 0’
0,00
3010
+0,01
10ft 1/2’
+0,02
3020
+0,02
10ft 1 ‘
+0,03
3030
+0,04
10ft 1 1/2’
+0,05
3040
+0,05
10ft 2’
+0,06
Shim color
Thickness [mm]
Silver
0.013
Gold
0.019
Purple
0.025
Light Blue
0.032
Red
0.038
Blue
0.051
White
0.064
Green
0.076
Orange
0.102
Light Purple
0.127
Clear
0.152
