The digital back is received in the workshop, and is connected to a computer.
A special test program is used while a number of test multi shots are performed and the piezo element’s movement of the CCD is monitored and adjusted.
Depending of the degree of the misalignment of the sensor this procedure may take some time to complete.
After the calibration the CCD and the IR-filter is cleaned, and the filter is re-mounted (or replaced if it has any scratches). For further details, please refer to the description of “CCD cleaning”.
After passing a functional test, the back is ready to leave the workshop again.