Lens Adjustment - Epson PhotoPC 850Z Service Manual

EPSON PhotoPC 850Z

5.2.6 Lens Adjustment

PREPARATION
Power Switch: ON
Serial cable
Camera
Figure 5-7. Lens Adjustment
CONDITIONS FOR ADJUSTMENT

More than A3 size Siemens Star Chart

Fluorescent light illumination with no flicker (incandescent light cannot be
used).

Illumination above the subject should be 400 lux ± 10%.
Adjustment
Approx.
150 cm } 3 cm
Siemens
star chart
ADJUSTING METHOD
1. Set the Siemens Start Chart 150cm ± 3cm away so that it comes in the
center of the screen.
2. Double-click DscCalV122.
3. Click Focus, and click Yes.
4. Lens adjustment value will appear on the screen.
5. Click OK.
Values measured by the Auto Focus Sensor against the
setting values C0-9 are displayed first, and then
STD_AFPOS value is displayed.
SDT_AFPOS = "0" means that an error has occurred.
Adjustment
Revision A
97