Calculating The Lens Offset - Christie DHD599-GS User Manual

2. Mount the projector in an appropriate mounting kit, using the 4 mounting points on the
underside of the projector.
Warning!
• Mount with the portrait cover side facing downwards.
• The projector must not stand on a table top on the portrait cover.

Calculating the lens offset

Adjust the offset to align the image on the screen with half image size.
• The vertical image offset (shift) ranges for the projector are +/-100% (WUXGA) and +/-120%
(HD).
• The horizontal image offset (shift) range for the projector are +/-30% (HD/WUXGA).
• The method for calculating lens offset complies with industry standards. For example for
Vertical lens offset:
• At 0% offset (or on axis), the center of the image is on the lens center, so half of the
image appears above and half appears below the lens center.
• At +100% offset, all (or 100%) of the image will appear above the lens center.
• The percentage (%) offset is calculated as the ratio of the number of pixels shifted up or
down to half image size.
GS Series (DHD599-GS, DWU599-GS) User Manual
020-001162-0 Rev. 1 (12-2017)
Installation
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