Sony VPL-VW200 - Manual (Page 84)

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4
After you have decided the lens position, insert the Philips screwdriver
at the locations of the four screws around the border of the lens in turn
and tighten them to fix the lens in place.
5
Attach the ring (washer) aligning the F mark on the inside of the ring with
the F mark on the projector by turning it clockwise.
When you use the horizontal and vertical lens shift features at the same time and adjust the horizontal
lens shift to the maximum, you can move the picture upward from the center of the lens by a
maximum of 53% of the screen size.
Note