Alc - Bosch AUTODOME IP 4000i User Manual

AUTODOME IP 4000i/AUTODOME IP 5000i/
AUTODOME IP 5000i IR
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:
–
–
–
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.
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
Fixed exposure
Select to set a fixed shutter speed.
4
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.)
Bosch Security Systems
Fluorescent 50 Hz
Fluorescent 60 Hz
Standard
Field Option
ALC mode Fluorescent 50
Hz
Fluorescent 60
Hz
Standard
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.)
Select the shutter speed for fixed exposure. (The values available depend on the value set
for the ALC mode.)
Default values,
field "Min. frame
rate"
15 ips
15 ips
15 ips
User Manual
Camera | en
Default values, Default values,
field "Default field "Shutter
shutter"
1/100
1/60
1/60
29
time"
1/100
1/100
1/500
2018.05 | 1.1 |