19
Correcting the Flange Focal Distance
1.
Remove the ZEISS CZ.2 from the camera.
2.
Follow the steps of chapter
Detaching a Mount
.
3.
Determine the total thickness of the shims that already lay in the lens groove.
4.
Increase or decrease the total shim thickness according to the tables in the appendix. See
Shimming Table
Any combination of shims is possible to achieve the required thickness and therefore the desired flange
focal distance. Always use the closest possible combination of shims.
Example: Using a ZEISS CZ.2 28 – 80 with an PL mount, scaled in feet and a siemens star test chart at a
test distance of 7 ft, an actual distance of 7 ft 2' is measured. Due to the shimming tables, you add a
orange shim 0.102 mm to the total thickness of the shims.
