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12x PTZ Outdoor Camera User Manual
SECTION 4: USING THE OSD MENUS
c.
Click
IRIS+
button to save the settings.
•
Setting the focus limit
.
This function is used to limit the minimum focus distance. You can configure the focus limit to a
longer distance when the target is at a distance to prevent the camera from focusing on the objects close to it; or configure the
focus limit to a shorter distance when the target is near the camera to prevent it from focusing on objects father away. You can
set the
FOCUS LIMIT
to 1CM, 30CM, 1M, 3M or AUTO.
4.3.2 TASK 2. Configure iris, gain and shutter speed
•
Setting the AE mode
. AE mode defines the priority of the iris, shutter and gain when the camera adjusts the brightness of
the video. The options in AE MODE are as follows:
AUTO
: Auto iris, auto shutter and auto gain. The camera adjusts these values automatically responding to the lighting
conditions. This is the default mode.
HAUTO
: You can adjust the video brightness with
IRIS+
and
IRIS-
when you select this mode.
IRIS
: Selects iris-priority mode to set the iris value manually. The shutter and gain values will be adjusted automatically
according to the lighting conditions.
SHUTTER
: Select shutter-priority mode set the shutter value manually. The iris and gain values will be adjusted
automatically according to the lighting conditions.
MANUAL
: Select this setting to adjust the shutter, iris and gain values manually.
•
Setting the iris value
. To adjust the iris size for light entering the lens, you can set the IRIS value manually according to light
conditions. The iris value ranges from 0 (closed) to 17 (fully open).
•
Setting the gain
. The value of gain indicates the degree of amplification of the original light signal. You can set the value
from 0 to 15.
•
Setting the shutter speed
. The speed of the electronic shutter controls the amount of light entering the lens in a unit
of time (a second). You can manually configure the shutter speed for the camera, and you can also enable the slow shutter
function for low lighting circumstances.
a.
Shutter speed
. If you set the SHUTTER value larger, the shutter speed is faster. The value indicates the inverse of the
shutter speed (1/value seconds). At faster speeds, the amount of light entering the lens is less causing the image to be
darker. You can set the shutter value to 1, 2, 4, 8, 15, 30, 50, 125, 180, 250, 500, 1000, 2000, 4000 or 10000.
b.
Slow shutter
. You can set the SLOW SHUTTER value to 0, 1, 2, 3, 4 and 5.
