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Navitar GNK-3828 Instruction Sheet page 2

Using your keystone correction lenses

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Alignment Procedure:
1. Insert alignment slides.
2. Turn on projector(s) and focus slide image.
3. Depending on the number of projectors in your presentation,
any combination of alignments can be used. Refer to figure 5
for a few examples.
4. For center projector:
Turn unit on and focus slide on screen.
5. For top projector:
Turn unit on and focus slide on screen. Notice the image is
higher than the center image. Turn the Y axis screw on your
XYPC lens. The image will move downward. Continue until
the desired shift has been achieved.
6. For bottom projector:
Turn unit on and focus slide on screen. Notice the image is
lower than the center image. Turn the Y axis screen on your
XYPC lens. The image will move upward. Continue until the
desired shift has been achieved.
7. Use the X axis screw on all lenses if and when movement to the
left or right is desired. Continue shifting lenses off axis until
all images exactly overlap the center image.
8. Depending on the projection distance and focal length of the
lens used, fine tuning the alignment is possible by using the
projector stand adjustments.
figure 5
Navitar, Inc.
200 Commerce Drive
Rochester, NY 14623
Phone (585) 359-4000
or (800) 828-6778
Fax (585) 359-4999
Internet: http://navitar.com
Email: info@navitar.com

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This manual is also suitable for:

Kc-3828Kc-5028Kc-6028