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Adjustment of Ultra short throw zoom lens (USL-901A)
The focus balance from the center to surrounding area varies on the screen size.
The Ultra short throw zoom lens has a focus adjustment function to adjust this balance.
How to use Focus Adjustment
1. Focus adjustment of the image at the center
Use the remote control or the control panel of the projector to adjust the focus
of the center.
2. Focus adjustment of the image at the surrounding area.
As the drawing below, rotate the Focus Adjustment ring to adjust the focus at
the surrounding area.
Note
The projection size and the scales indicated on the lens unit are for guidelines
only.
Focus Adjustment ring