avertX HD90IR, User Manual

Page: 33 / 37

31626AA 33
Video Mask
You can use the video mask page to define a privacy mask to keep
users from viewing parts of the image.
You can add two privacy masks and choose a color to obscure the live
view from users.
Camera
Exposure
The exposure is the amount of light received 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.
Full Auto Mode
•
In Full Auto mode, the camera’s Shutter Speed, IRIS and AGC
(Auto Gain Control) control circuits work together automatically
to set a consistent video output level. The maximum shutter
speed is adjustable from 1/30 to 1 sec.
Fixed Shutter Mode
•
In Fixed Shutter mode, the shutter speed is user selectable.
The shutter speed range is from 1/10000 to 1 sec. with 19
options. You can select suitable shutter speed according to the
environmental illumination.