Runco Signature Cinema SC-1 Owner's Operating Manual page 65

Adjusting the Yaw: Loosen the Yaw/X-Adjustment Levers
to allow the lens to pivot freely from side to side. Then,
angle the lens to even out any left-right pincushion
distortion:
Wrong Position
Once the proper lens angle has been set, firmly tighten the Yaw/X-Adjustment Levers to
secure the lens in place.
Adjusting the Geometry:
1. Input an anamorphic cross-hatch test pattern to the DHD Controller.
2. Unscrew the Anamorphic Lens just enough to allow it to rotate freely.
3. Grasp the lens by the center ring and rotate the lens until the image is properly
anamorphic:
Wrong Position
4. When the image geometry appears correct, tighten the Anamorphic
Lens Set Screw (item #10) to secure the lens in place. (When
viewed from the front, the rear opening on the anamorphic lens
should appear as a tall, narrow oval.)
Focus: Finally, rotate the Focus Ring on the anamorphic
lens to fine-tune the optical focus.
Runco SC-1 Owner's Operating Manual
Correct Position
Correct Position
53
Installation