Service Manual

Camera body 201F
Checks & Adjustments 3:8
April 1998Revision 0
11.* Recheck the focal lenght and the 45° mirror angle.
12.* Check the flatness of the screen. Use the screen adapter V-4705 and the gauge
V-2229 incl. ruler and indicator clock. The same measurement should be obtained at
all four corners.
Adjust, if necessary, by the four screws (Pos No. 30, page 14:2).
13.* After the screen is correctly levelled the height must also be checked. Use the
collimator V-4151 and the microscope V-2236.
15. Finally go through all checks once more. Minor adjustments are sometimes necessary
to make. At this stage, it is also possible to use different light outputs when checking
the flash meter since the camera body is mounted in the shell.
* The 200 series cameras are built slightly different from the 500 series cameras
concerning the focusing screen adjustment. Due to the use of high precision test
equipment at the assembly line, deviations from perfect 45º mirror angle is
compensated for when adjusting the focusing screen position. Doing so we assure
minimum focusing differences over the full image format between the images on the
focusing screen and on the film.
The result of the factory screen adjustment is, that the screen position may not be
totally horizontal when tested in the gauge V-2229. This is still quite in order.
When servicing the 200 series cameras we recommend not to change the mirror
angle, provided it is in tolerance when checked with the sighting tube in gauge
V-2229. Deviations from perfect 45º angle has already been accompanied by non-
horizontal focusing screen position.
However, if the mirror angle is out of tolerance, adjustment has to be made using the
current procedures.
(Service Info No. 14/1995)