Q-See QSC13212D - Manual (Page 16)

12
5.1 Exposure
When the cursor stops on "exposure", press “Ok” button to enter "exposure" to set the
parameters.

Lens
There are two kinds of options, automatic or manual; depending on the specific type
of the lens.

Lens Brightness
User can adjust image brightness from 0 to 100, depending on the lightness of
surroundings. The default value is 35.

Electronic Shutter
Electronic shutter is to set the camera shutter speed, that is, the video output per
second (1 / 50, means the camera can output 25 pictures per second). User can set
both slow and high-speed shutter. ( The speed can be set as auto, from 1 / 50 ~ 1 /
100000. The user can set the specific speed according to the specific surroundings.
The default value is auto. )

AGC (Auto Gain Control)
This function not only increases the brightness of camera images, but also increases
the image noise, users can adjust it from 12DB-33DB or shut it down according to
actual situation.

Exit
When the setup is complete, click "Up", "Down" to move the cursor to "return", then
press "OK", "Exit" dialog will appear, select" Exit "(Exit menu, do not save the
settings of parameters) or "factory original settings" (it means to reset to factory
settings ) or "Save & Exit" (save the changes of parameters and then exit the menu)
and then press "OK" to perform the corresponding return functions.
Please refer to the above description to operate "exit".