Runco Video Xtreme VX-2cx User Manual page 55

Pitch (Angle): Next, angle the lens to even out any top-to-bottom pincushion distortion.
To do this, loosen the Pitch Adjustment Levers (item #8) on either side of the lens to allow
it to pivot freely. Then, adjust the anamorphic lens angle so that the projected image is
rectangular:
Incorrect Lens Angle
The anamorphic lens will almost always be angled with respect to the projector; this is
normal.
Once the proper lens angle has been set, firmly tighten the Pitch Adjustment Levers to
secure the lens in place.
There may be some pincushion distortion even after the lens is
Note
properly adjusted, especially at shorter throw distances. If this is the
case, Runco recommends that you slightly over-scan the image
into the screen frame area to mask the distortion.
Adjusting the Yaw: Loosen the Yaw/X-Adjustment Levers (item #10a) to allow the lens
to pivot freely from side to side. Then, angle the lens to even out any left-right pincushion
distortion:
Runco VX-2cx/VX-2dcx Owner's Operating Manual
Anamorphic Lens (Top View)
Correct Lens Angle
43
Installation