BenQ SH915 User Manual page 31

Correcting Surface Fit
Manually correct geographic distortion by Surface Fit calibration function.
• Using the OSD menu
1. Press MENU/EXIT and then press ◄/► until
Display
the
2. Press ▼ to highlight Surface Fit and press
MODE/ENTER. The Surface Fit page
displays.
3. Press ▲/▼ to select a Horizontal Surface
Fit and press MODE/ENTER.
4. Press ◄/► to select the direction and press MODE/ENTER.
Only one Surface Fit setting will be stored so if you want to change
from the previous direction to the other, the notice message will
pop-up to remind you to reset the previous Surface Fit setting.
5. Press ◄/► to adjust the left or/and right side
convex or concave. Default is 0 and value is -40~0~40.
Single side adjustment is only for distortion.
6. For both sides of the horizontal surface fit, use ▲/▼ to
adjust the center of the curve because it is not always at
the center. Default is 0 and value is -40~0~40.
7. Press ▲/▼ to select Vertical Surface Fit and
press MODE/ENTER.
Operation
menu is highlighted.
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