User’s Manual
27
3.3.5 AE
MODE
The exposure is the amount of light captured by the image sensor and is determined
by the width of lens diaphragm opening (iris adjustment), the amount of exposure by
the sensor (shutter speed) and other exposure parameters. This option allows users
to define how the Auto Exposure (AE) function works.
18×/26× Model:
•
EXPOSURE COMPENSATION
The exposure value ranges from -10.5dB ~ 10.5dB. Select <OFF> to disable
the function.
NOTE:
For 18× and 26× models, this function can be adjusted
through <Brightness>/<Iris> key on the control keyboard.
•
AE MODE
AUTO
In this mode, the camera’s Brightness, Shutter Speed, IRIS and AGC (Auto
Gain Control) control circuits work together automatically to get consistent
video output level.
NOTE:
For 18× and 26× models, if not in
AUTO
exposure mode, IR
cut filter cannot automatically switch to Day/Night mode.
BRIGHT
The brightness control function adjusts the IRIS and AGC gain using an
internal algorithm. Brightness is controlled by gain when the light condition is
dark and by iris when the light condition is bright. The bright value ranges
from 00 ~ 31.
SHUTTER
With this option, SHUTTER speed takes main control of exposure, and both
IRIS and AGC will function automatically in cooperation with shutter speed to
achieve consistent exposure output. The shutter speed ranges from 1/10000
~ 1.
IRIS
With this option, the IRIS function adjusts exposure in higher property.
SHUTTER speed and AGC circuit will function automatically in cooperating
with IRIS to get consistent exposure output. The opening of a lens controls
the amount of light reaching to the surface of the selected device. By
increasing the F-stop number (F1.6, F2, F2.4, etc.), less light is permitted to
Summary of Contents for ZC-PT series
Page 1: ...English Version 1 1 6 r4 ...
Page 73: ...User s Manual 72 ...