places less of the scene in focus. Larger f-numbers (negative EV) result in a smaller maximum
opening, placing more of the scene in focus. The camera will automatically correct for the
decreased light by using a higher gain or a longer exposure time.
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Preferred Iris:
You can set an ideal iris opening to give a well-exposed and well-focused
image in the most frequent lighting conditions. This value is an f-number. It is also given in EV
relative to the widest possible opening of the lens. This setting is only available when the
Iris
setting is set to
Automatic
.
Note:
The Preferred Iris value must be less than or the same as the Maximum Iris
value.
The smallest f-number (0 EV) sets the iris to the widest possible opening. This allows the most
light into the camera, but places less of the scene in focus. Larger f-numbers (negative EV)
result in smaller openings, placing more of the scene in focus. The camera will automatically
correct for the decreased light by using a higher gain or a longer exposure time.
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Backlight Compensation:
If your scene has areas of intense light that cause the overall image
to be too dark, change the Backlight Compensation value until you achieve a well-exposed
image.
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Iris:
You can allow the camera to control the iris by selecting
Automatic
, or you can manually
set it to
Open
or
Closed
.
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Maximum Gain:
You can limit the automatic gain setting by selecting a maximum gain level.
By setting the maximum gain level for low-light situations, you can maximize the detail of an
image without creating excessive noise in the images.
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Equalization:
This setting allows you to adjust the camera image to equalize the color
difference between warm and cold objects. A lower value will make the warm objects more
noticable. Increasing the value will result in a more balanced video image.
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Color Palette:
You can change how information captured from thermal cameras is represented
by selecting a Color Palette. This option is not available for H4 Thermal Elevated Temperature
Detection cameras. You can choose one of the following options:
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WhiteHot - Grayscale. White represents hot, black represents cold.
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BlackHot - Grayscale. Black represents hot, white represents cold.
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Rainbow - Multicolor. Red represents hot, blue represents cold.
7. If you are configuring an H5 or H4 PTZ dome camera, you can define additional settings in the
Advanced Filters area.
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Enable Digital Defog:
If your PTZ dome camera is installed in a foggy environment, select this
check box to increase the video contrast to help make objects more visible in the scene. From
the
Defog Level
drop-down list, select one of the available options:
Low
,
Medium
or
High
.
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Enable Image Stabilization:
If your PTZ dome camera is mounted to a pole or other surface
Image and Display
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