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74 | HDZ Series IP PTZ User Manual
Exposure
The exposure is the amount of light received by the image sensor and is determined by the
width of the lens iris opening, the amount of exposure by the sensor (shutter speed) and other
exposure parameters. With these parameters, users can define how the auto exposure function
works. Users can select the best exposure mode for their operating environment. You can select
a specific Max Gain value, as needed. Select one of the following exposure modes to optimize
the video output for your operating environment:
Table 5-1 Exposure Modes
Mode Description
Full Auto The camera’s shutter speed, iris, and auto gain control (AGC) circuits work
together automatically to produce a consistent video output.
Shutter Priority The shutter speed has priority in setting the camera exposure.
P-Iris The camera will automatically detect the best iris size for the environment, where
the minimum iris size is limited to affect the exposure. This setting will provide a
good depth of field, where objects at different distances from the camera are in
focus simultaneously.
Note This feature is only supported by the HDZ PTZ models: HDZ20HD(X),
HDZ20HDE(X), HDZ30HD, and HDZ30HDE.
Iris Priority The iris has priority (instead of the shutter having priority) in setting the camera
exposure. Mini shutter speed limitation setting.
Manual Mode The shutter speed, iris, and gain are set manually by the user.
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