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54 Vidikron Vision Model 65/Model 75 Installation/Operation Manual
GeoCorrection: Projector placement and other factors can cause geometric distortion in the
projected image. To correct this, select
GeoCorrection from the Installation menu. This
sub-menu provides the following options:
• V. Keystone/H. Keystone: To correct distortion resulting from the angle of projection,
select
V. Keystone or H. Keystone from the GeoCorrection menu and use the or
button to make the image rectangular. See Figure 4-6.
Figure 4-6. Keystone Correction
GeoCorrection
V. Keystone 0
H. Keystone 0
Pincushion 0
Vidikron recommends that the keystone feature not be used unless
absolutely necessary, as it may cause artifacts in the image.
Tip
Positive values
compress top.
Negative values
compress bottom.
-+
Vertical Keystone Correction
Positive values
compress right side.
Negative values
compress left side.
-+
Horizontal Keystone Correction
Projector Projected Image