Axis Q6052 User Manual page 23

AXIS Q6052 PTZ Dome Network Camera
Video and Audio
Wide Dynamic Range
Wide Dynamic Range (WDR) processing balances the brightest and darkest sections of a scene to produce an image that is balanced
in lighting to provide more detail. Wide dynamic range can improve the exposure when there is a considerable contrast between light
and dark areas in the image. There are three different WDR modes:
WDR 1 - contrast
WDR 2 - double exposure
WDR 3 - contrast and double exposure
The different WDR settings adjust for various amounts of contrast in the image. Use a higher WDR number for a higher contrast.
Enable WDR in intense backlight conditions. Disable WDR in low light conditions for optimal exposure.
Exposure Settings
Exposure control - These settings is used to adapt to the amount of light used. Automatic is the default setting and it can be
used in most situations. The shutter speed is automatically set to produce optimum image quality. Use Manual if you have special
requirements for the exposure setting and wish to lock it. Select the desired exposure time from the drop-down list.
Max exposure time - Shutter speed, also called 'exposure time' stands for the length of time the camera shutter is open, thereby
exposing the camera sensor to light. If shutter speed is fast it can freeze action effectively. If shutter speed is slow, it can cause
moving objects to appear blurred. Decreasing the exposure time will reduce motion blur.
Allow slow shutter - Select Allow slow shutter to let the camera decrease the shutter speed in low light to improve image brightness.
Max gain - Measured in decibels (dB), gain describes the amount of amplification applied to a signal, in this case the visual
information in the image. A high level of amplification may provide a better image in very low light situations. A high gain will also
increase the amount of image noise.
Exposure zones - This setting determines which part of the image is used to calculate the exposure. For most situations, the Auto
setting can be used. For particular requirements, select a predefined area.
IR cut filter - The IR cut filter prevents infrared (IR) light from reaching the image sensor. In poor lighting conditions, or when
using an external IR lamp, set the IR cut filter to Off. This increases light sensitivity and allows the product to "see" infrared light.
The image is shown in black and white when the IR cut filter is off. Set the IR cut filter to Auto to automatically switch between
On and Off according to the lighting conditions.
Day/Night shift priority - Use the Day/Night shift priority bar to determine when the camera shifts into either day mode or night
mode. By default, the camera will automatically change from day to night mode at a pre-defined level which corresponds to light
conditions. By dragging the bar handle towards the sun, the camera will change to day mode earlier and change to night mode late.
Image Settings
Important
The autofocus behavior is affected by factors such as light conditions, contrasts in the scene, and objects moving in and out. In
these conditions or scenes, a manual focus could be preferable to enhance performance and allow the camera to focus faster.
Autofocus enabled - Autofocus enables the camera to focus although the distance to different objects of interest is constantly
changing. Whenever the camera's pan/tilt/zoom position is changed, the autofocus performs a search to find the ideal focus point.
Automatic focusing is enabled by default. If the focus position is changed manually using the focus bar, autofocus will be disabled
even if enabled in Image Settings. In this case, use the PTZ control panel to enable autofocus, see page 12. If required, the focus
control can be disabled under PTZ > Advanced > Controls.
Auto defog - The product will detect fog and automatically filter it out to get a clear image. Select the level of fog removal from the
drop-down list. High implies that maximum fog removal is applied and off implies no fog removal. Auto defog can be activated
incorrectly in scenes with low contrast, high light level variations or when auto focus is slightly off. This can affect the image quality
by for example, increasing image contrast. Also, too much brightness can negatively impact the image quality when defog is active.
Defog - Select this feature to counter the effects of foggy weather and get a clear image.
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