Axis 0942-001 User Manual

AXIS Q6055-C PTZ Network CameraAbout video settingsWhite balance is used to make colors in the image appear the same regardless of the color temperature of the light source. The Axisproduct can be set to automatically identify the light source and compensate for its color. Alternatively, select the type of lightsource from the drop-down list. For a description of each available setting, see the online help .About wide dynamic rangeWide Dynamic Range (WDR) processing balances the brightest and darkest sections of a scene to produce an image that is balancedin lighting to provide more detail. Wide dynamic range can improve the exposure when there is a considerable contrast between lightand dark areas in the image. There are three different WDR modes:WDR 1 - double exposure low effectWDR 2 - double exposure medium effectWDR 3 - double exposure high effectThe 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. Check which settingworks best.About exposure settingsExposure control - These settings is used to adapt to the amount of light used. Automatic is the default setting and it can beused in most situations. The shutter speed is automatically set to produce optimum image quality. Use Manual if you have specialrequirements 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, therebyexposing the camera sensor to light. If shutter speed is fast it can freeze action effectively. If shutter speed is slow, it can causemoving 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.Enable Highlight compensation - This setting detects bright lights from a source such as a torch or car headlights and masks thatimage area. The feature is useful when the camera operates in a very dark area where a bright light may overexpose part of the imageand prevent the operator from seeing other parts of the scene.Max gain - Measured in decibels (dB), gain describes the amount of amplification applied to a signal, in this case the visualinformation in the image. A high level of amplification may provide a better image in very low light situations. A high gain will alsoincrease 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 Autosetting 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 whenusing 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 betweenOn 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 nightmode. By default, the camera will automatically change from day to night mode at a pre-defined level which corresponds to lightconditions. By dragging the bar handle towards the sun, the camera will change to day mode earlier and change to night mode late.About image settingsImportantThe autofocus behavior is affected by factors such as light conditions, contrasts in the scene, and objects moving in and out. Inthese 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 constantlychanging. Whenever the camera’s pan/tilt/zoom position is changed, the autofocus performs a search to find the ideal focus point.22