Barco DP2K--20C, Installation Manual

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5. Lenses & lens holder
4
F
F
F
F
F
F
F
F
Image 5-20
Corner focusing
8. Adjust nut 3 to optimize the overall focus of the image.
3
F
F
F
F
F
Image 5-21
Overall focusing
9. Repeat from step 5 until the projected focus pattern is as sharp as possible in the center, left, right, top and bottom of the screen.
10.Optimize the focus of the projected image as follows:
a) Place the zoom lens in TELE position (smallest projected image) and adjust the focus using the lens focus barrel or motorized
focus control.
b) Place the zoom lens in WIDE position (largest projected image) and adjust the focus by turning equally on nut 2, 3 and 4.
c) Repeat steps “a” and “b” until the projected image is as sharp as possible.
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