C2487M-A (4/05) 21
BACKLIGHT COMPENSATION (BLC)
If a bright backlight is present, the subjects in the picture may appear dark or as a silhouette.
Backlight compensation enhances objects in the center of the picture. The dome uses the center
of the picture to adjust the iris. If there is a bright light source outside of this area, it will wash
out to white. The camera will adjust the iris so that the object in the sensitive area is properly
exposed.
There are two backlight compensation settings:
ON Backlight compensation is activated.
OFF (default) Backlight compensation is not activated.
NOTE: If backlight compensation is ON, decrease the Auto Iris setting and adjust the Auto IR
Level to a darker setting. Refer to the

Auto Iris

and

Auto IR Level

sections.
BACK
EXIT
ADVANCED SETTINGS
SHUTTER SPEED AUTO
AGC LIMIT 28
AUTO IRIS AUTO
AUTO IRIS LEVEL 66
AUTO IRIS PEAK 8
AUTO SHARPNESS ON
SHARPNESS LEVEL 26
AUTO WHITE BALANCE ON
R GAIN 482
B GAIN 678
BACKLIGHT COMP OFF
VIDEO LEVEL HIGH
BACK
EXIT
AUTO FOCUS ON
ZOOM LIMIT X144
ZOOM SPEED MEDIUM
LOW LIGHT LIMIT 2
IR CUT FILTER AUTO
AUTO IR LEVEL DUSK
<ADVANCED SETTINGS>
CAMERA
BACK
EXIT
<CAMERA>
<MOTION>
<POWER UP>
<LINE SYNC>
<PRESETS>
<PATTERNS>
<ZONES>
<WINDOW BLANKING>
<ALARMS>
<AUX>
<ALERT>*
<CLEAR>
<PASSWORD>
DOME SETTINGS
EXIT
SPECTRA III
LANGUAGE ENGLISH
<SYSTEM INFORMATION>
<DISPLAY SETUP>
<DOME SETTINGS>
ACK ALERT*
RESET CAMERA
CYCLE CAMERA POWER
REBOOT SYSTEM
(See page 9)
Quick Programming Guide
*This setting only applies to
Pressurized Spectra III dome
systems with software version
1.27 or higher.