Vidikron 140/150 - Manual (Page 54)

Installation
42 Vision Model 140/150 Owner’s Operating Manual
PRE
L
IMINAR
Y
Height (Y) Adjustment: With the white field still on-screen, loosen the Height Adjustment
Levers on either side of the lens. Then, slowly move the anamorphic lens into place so that
there are no shadows on the top or bottom of the screen:
When the height is properly set, tighten the Height Adjustment Levers to secure the lens in
place.
Pitch (Angle): Next, angle the lens to even out any top-to-bottom pincushion distortion. To
do this, loosen the Pitch Adjustment Levers (directly above the Height Adjustment Levers) 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:
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 properly
adjusted, especially at shorter throw distances. If this is the case, Vidikron
recommends that you slightly over-scan the image into the screen frame
area to mask the distortion.
Too High
Too Low
Correct position
Correct Lens Angle
Incorrect Lens Angle
Note