Christie Roadie HD+35K, User Manual

Page: 31 / 192

Section 2: Installation and Setup
Roadie HD+35K User Manual 2-15
020-100340-02 Rev. 1 (01-2010)
Figure 2-16 Horizontal Offset Range
NOTE:
The positioning shown in Figure 2-16 is often mistakenly referenced as "70% offset", but it is not-it is 40%
offset derived as 432/1080 x 100. A 70% offset is explained below.
ALTERNATIVE METHOD OF DESCRIBING HORIZONTAL OFFSET
Horizontal offset can also be specified as the distance traveled from lens center and expressed as a
percentage of half of the image width . For example, an offset spec of 70% means a centered image can be
moved by a distance of 540 pixels, resulting in 85% of the image projected to one side of lens center and
15% on the other. See
Figure 2-16 .
NOTE:
Example only. Beyond range for this projector.
2.3.3 Floor Mounting and Leveling
For front projection without suspending, mount the projector on a strong supporting structure or cart. Take
special care if using a mobile cart-avoid sudden stops, force and uneven surfaces that may cause the top-heavy
cart to lurch and overturn.
Make sure your mounting structure is reasonably level, and then adjust one or more projector feet as necessary
to fine-tune.
Do not invert this projector.
Adjusting the Feet
For installations on a floor or suitable supporting structure, a single projection head should rest firmly on its
feet. To adjust the height and level of the projector, extend or retract the feet by rotating them. Refer to
Figure
2-17 .
15% 85%
70% Offset
Image by
a distance of 70%
of half the image
width
moved
NOTE: Not possible
with this projector.