1. Test overview.

This test calculates the distance necessary to move the IR image in both directions to superimpose it onto RGB image perfectly.
For this, the scanner will scan a B&W film and will work out the vertical and horizontal shift to be applied.
Note : The vertical shift is in the direction of the CCD (physical shift between the CCD IR and CCD RGB), therefore common to all the film carrier exposures. The horizontal shift is in the advance film direction, therefore different from each film carrier.
If the shift values are incorrect, the ADDR may not reach it optimal activity.

2. Test conditions.

This test relates to the 135 Film carrier inserted in the scanner.
The 135 Film carrier must be inserted in the scanner to carry out this test.
The short B&W Film must be used for this test (ref 070 100 422A) :

The acceptance of the test is automatic.
The value of vertical shift is saved in the file im1500data.ini, in chapter CCD_IR with line FAST_SCAN_OFFSET.
The value of horizontal shift is saved in chapter FILM_CARRIER_135 with line SLOW_SCAN_OFFSET.

3. Pre-requirements.

135 Cal Encoder 2 Test accepté.

4. Réalisation du test.

Click on RUN to carry out the test. A message will come up asking to insert the short B&W film. When the film is inserted (caution : watch for the direction of film), click on OK.
The scanner will scan the whole film.
At the end of the scanning, the value of fast_scan_offset and slow_scan_offset will be displayed.

5. Test acceptance.

The test is accepted if the slow_scan_offset lies between -20 and +20.
No Criterium on the fast_scan_offset.

6. Other affected tests.

135 ADDR Test.

7. Trouble shooting.

None.