AUTODOME IP 4000i/AUTODOME IP 5000i/
AUTODOME IP 5000i IR
Camera | en
29
Bosch Security Systems
User Manual
2018.05 | 1.1 |
B-gain
In
Manual
white balance mode, adjust the blue gain slider to offset the factory white point
alignment (reducing blue introduces more yellow).
6.4
ALC
ALC mode
Select the mode for automatic light-level control:
–
Fluorescent 50 Hz
–
Fluorescent 60 Hz
–
Standard
ALC level
Adjust the video output level (-15 to 0 to +15).
Select the range within which the ALC will operate. A positive value is more useful for low-
light conditions; a negative value is more useful for very bright conditions.
The table below identifies the default values in the Exposure fields, depending on the options
selected for ALC mode.
Field
Option
Default values,
field “Min. frame
rate”
Default values,
field “Default
shutter”
Default values,
field “Shutter
time”
ALC mode
Fluorescent 50
Hz
15 ips
1/100
1/100
Fluorescent 60
Hz
15 ips
1/60
1/100
Standard
15 ips
1/60
1/500
Automatic exposure
Select to let the camera automatically set the optimum shutter speed. The camera tries to
maintain the selected shutter speed as long as the light level of the scene permits.
4
Select the minimum frame rate for automatic exposure. (The values available depend on
the value set for the
Base frame rate
in the
Installer Menu
.)
Fixed exposure
Select to set a fixed shutter speed.
4
Select the shutter speed for fixed exposure. (The values available depend on the value set
for the ALC mode.)
Day/night
Select the appropriate mode from the drop-down list.
Auto
- the camera switches the IR cut-off filter on and off depending on the scene illumination
level.
Monochrome
- the IR cut-off filter is removed, giving full IR sensitivity.
Color
- the camera always produces a color signal regardless of light levels.
Night-to-day switchover
Adjust the slider to set the video level at which the camera in
Auto
mode switches from
monochrome to color operation (-15 to +15).
A low (negative) value means that the camera switches to color at a lower light level. A high
(positive) value means that the camera switches to color at a higher light level.
(The actual switch-over point might change automatically to avoid instable switching.)
