Image Adjustments - Projectiondesign cineo3+ 1080 User Manual

IMAGE ADJUSTMENTS

Various optical adjustments are available, depending on your
choice of lens. All lens adjustments are motorized and controlled
by the keypad, remote control or by RS232 or LAN.
Two kinds of lenses are available; fixed or zoom. A fixed lens has
permanent focal length, or throw ratio. A zoom lens has variable
focal length or throw ratio.
In addition, fixed lenses may or may not be shiftable, depending
on type and model. See the specifications for the particular
lens.
The throw ratio is defined as the ratio between the projection
distance to the screen and the projected image width. With a
fixed lens, this ratio is set. With a zoom lens, this ratio can be
changed within certain limits specific to the lens in use.
On the keypad, first select lens function, then use the cursor
keys to adjust. On the remote control, zoom and focus are direct
keys, while lens shift is operated by first selecting SHIFT, then
use the arrow keys.
A mechanical SHUTTER is employed that totally shuts off the
optical image path. The shutter is directly available from the
keypad and the remote control. The shutter is also in place when
there is no lens attached.
Select a lens suitable for the application. A range of lenses from
very wide to super telezoom is available.
Adjust the horizontal and vertical SHIFT, if applicable, in order to
align the image on screen.
If a zoom lens is used, adjust the image to the right size. If a fixed
lens is used, relocate the unit to achieve the right image size.
FOCUS the image properly.
Adjust the IRIS to achieve the desired optical balance between
brightness and contrast. In a bright environment, brightness
is usually maximized resulting in reduced contrast. In a dark
environment, less light is needed and desired, while high contrast
and deep blacks are appreciated.
To level the image, adjust the feet as needed by turning the feet
accordingly.
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