Christie Roadster S+12K Setup Manual page 17

Vertical & Horizontal 

Position
Roadster, Matrix WU, Mirage S+/HD/WU Setup Guide
020-100342-02 Rev. 1 (04-2011)
Throw Distance (TD) = (Screen Width X Lens Type)
THE VERTICAL POSITION
size of the screen and the lens type. Correct vertical position helps ensure that the
image will be rectangular in shape rather than keystoned (having non-parallel sides)
and that image focus and brightness both remain optimized.
If necessary, vertical position of the image can be offset—that is, moved up or down
in relation to lens center—by using the motorized offset function. Starting with no
offset, the image from this projector can be moved up or down by a maximum
distance of 525 pixels for SXGA+ resolution and 643 pixels for HD and WUXGA
resolution, resulting in the entire image (more for HD/WUXGA) being displayed
above or below lens center. See Table 2.1 or refer to the Roadster, Matrix WU,
Mirage S+/HD/WU User Manual for more details.
NOTE: Not applicable for the fixed lens.
THE HORIZONTAL POSITION
of lens center—by using the motorized offset function. Starting with no offset, the
image from this projector can be moved left or right by a maximum distance of 350
pixels for SXGA+ resolution and 403 pixels for HD and WUXGA resolution,
resulting in approximately 75% of the image displayed to one side of lens center. See
Table 2.1 or refer to the Roadster, Matrix WU, Mirage S+/HD/WU User Manual
for more details.
IMPORTANT! Use the lens and screen size to calculate the precise throw distance
using the tables provided in the Dealer Section of the Christie Website, PN 020-
100298-xx. Due to lens manufacturing tolerances for lens focal length, actual throw
distance and vary ±5% between lenses with the same nominal throw ratio.
of the projector in relation to the screen also depends on the
of the image can be offset—that is, shifted left or right
Installation & Setup
SCREEN
2-7