FujiFilm GW690 2 Factory Service Manual And Parts List page 44

REASSEMBLY AND ADJUSTMENT
FUJI PROFESSIONAL GW69011, GSW69011
3 - 5 Adjustment of the range finder (At infinity and 1.2 m)
1) Fix the camera on a tripod, look at an image in infinite distance
(500 meters or farther, or infinity of the collimater), and make adjustment
by properly turning the eccentric pin (5 - 18) so that the moving image in
the range finder matches with the stationary image.
Now, turn the focusing ring a few times from the middle range to the
infinity, and make sure that the moving and stationary images are matched.
2) Set the shutter to bulb, fully open the aperture, and face the camera
forward against a chart located in the position 1.2 m from the rail plane
of the camera, (In this case, the rail plane must be in parallel to the
chart plane. Further, apply a sheet of frosted glass on the rail plane and
match the chart center with the lens center.)
Next, set the focusing ring to 1.2 m, and make sure that the image is
focused correctly.
3) Looking into the range finder, loosen the screw (5 - 35) slightly, move the
adjust lever (5 - 39) by pushing it forward and backward with a screw
driver or other proper tool, and thus, match the images in the range
finder.
Retighten the screw (5 - 35) securely without fail.
4) Now, make sure that images in the range finder agree at both the infinity
and 1.2 m, and that the focusing position is 0±0.05 from the rail plane at
the 1.2 m distance. It is very rare to success in making this adjustment at
one time. Perform repeatedly.
Further, the focusing position at 1.2 m may not necessarily agree with
the index position of the focusing ring completely. In this case, the
agreement between the focusing position and range finder should be
prefered.
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