Runco RS-900 Owner's Operating Manual page 71

• Pincushion: "Pincushion" distortion can sometimes occur if the throw distance is very
short and/or the projector is equipped with an anamorphic lens (refer to Installing and
Adjusting the CineWide Anamorphic Lens in Section 3). To correct it, select
Pincushion from the GeoCorrection menu and use the
image rectangular. See Figure 4-7.
-
Negative values
decrease image height
at screen center.
Figure 4-7. Pincushion Correction
Runco RS-900 Owner's Operating Manual
Projector
or button to make the
+
Projected Image
Positive values
increase image height
at screen center.
57
Operation