Bosch NDP-5523-Z30L - Page 27

AUTODOME IP starlight 5100i IR Camera | en 27
Bosch Security Systems
User Manual
2023-01 | 1.2 |
– Standard
ALC level
Adjust the video output level.
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.
ALC - average vs. peak
The ALC - average vs. peak slider configures the ALC level so that it controls mainly on scene
average level (slider position - 15) or on scene peak level (slider position +15). Scene peak
level is useful for capturing images that contain car headlights.
ALC speed
Select Slow, Medium, Fast to adjust the speed of the video level control loop. For most
scenes, it should remain at the default value.
Maximum gain [dB]
Use the slider to adjust the maximum gain.
Exposure
Select the appropriate exposure speed.
– Select Automatic exposure to allow the device to set the optimum shutter speed
automatically. The device tries to maintain the default shutter speed as long as the light
level of the scene permits.
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 Fixed exposure to set a fixed shutter speed.
Select the shutter speed for fixed exposure. (The values available depend on the value set
for the ALC mode.)
Maximum shutter [s]
Select a value in this field as the maximum speed of the shutter when the camera is in
Automatic exposure mode. The limit on the shutter speeds improves the motion performance.
A lower value increases sensitivity at the expense of increased motion blur.
This option is only available when Automatic exposure is selected.
Default shutter [s]
Select a default shutter speed. The default shutter improves the motion performance in auto
exposure mode.
The camera maintains the selected default shutter speed as long as the light level of the scene
allows it.
This option is only available when Automatic exposure is selected.
Select the Fixed shutter [s] for fixed exposure. (The values available depend on the value set
for the ALC mode).
Iris priority - open vs. closed
Use the slider to adjust the iris opening to the specific requirements of the scene.
– Iris open increases local sharpness and/or increases sensitivity.
– Iris close increases depth of field, which allows you to keep objects of interest in focus.
In scenes where a change of the iris opening affects the gain, closing the iris causes more
video noise and increases bandwidth. Increased motion blur may also occur when the iris
is more closed.
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.