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Exposure Settings

Open the Exposure Settings dialog to adjust the exposure settings of the camera and to optimize it for the current lighting condition.

The MOBOTIX camera is equipped with several automatic features so that the best possible images can be created under all weather and lighting conditions. Normally, only extreme conditions call for manual modifications of the exposure settings.

When modifying settings manually, you should always start with the factory default settings.

Notes:


Description of Parameters

Automatic Contrast It is recommended that this setting always has the value Auto in order to create high-contrast images under all lighting conditions.
Brightness

Changing the Brightness parameter will adjust the entire image area.

Notes:

  • Configure the Exposure Windows first (see below). This is usually sufficient to achieve good image exposure.
  • If setting the exposure windows does not produce satisfying images, you may want to use the Brightness parameter for fine tuning.
  • Selecting high values for this parameter that are too high may lead to overexposure of bright image areas.
Backlight

This parameter also is used for adjusting the brightness of an image. However, it only affects the darker portions of an image.

Notes:

  • Configure the Exposure Windows first (see below). This is usually sufficient to achieve good image exposure.
  • If setting the exposure windows does not produce satisfying images, you may want to use the Backlight Correction parameter for fine tuning.
Night Improvement

This setting improves contrast in dark scenes or in scenes lacking contrast. The Auto default setting will only use night improvement, if MxPEG has been activated in the JPEG Settings dialog.

Note: Activating this parameter may result in an increase of image noise.
Lens F-Number Select a an F-stop number in order to correct the exposure of the camera.
Exposure Window

Exposure windows are defined image areas that are used for exposure and color adjustments. To facilitate exposure window positioning, you can select from a number of pre-defined exposure windows.

Notes:

  • If your camera is a dual lens model, you can define different exposure windows for each lens.
  • You may also use the exposure windows to perform the automatic White Balance adjustment.

Pre-defined Exposure Windows:

All Uses the complete image area for exposure control.
Quarter An exposure window at the image center that covers a quarter of the viewable image area.
Center An exposure window at the image center with a size of 220x160 pixels.
Spot An exposure window at the image center with a size of 90x65 pixels.
Top An exposure window at the top of the image with a size of 570x234 pixels.
Middle An exposure window at the image center with a size of 570x234 pixels.
Bottom An exposure window at the bottom of the image with a size of 570x234 pixels.
Right An exposure window at the right side of the image with a size of 210x410 pixels.
Vertical An exposure window at the image center with a size of 210x410 pixels.
Left An exposure window at the left side of the image with a size of 210x410 pixels.
Right & Left Two exposure windows at the left and right sides of the image with a size of 155x410 pixels each.
Extra Select this value if you would like to define customized exposure windows in the configuration file.
Exposure Weighting

Using this parameter, you can define how much the exposure windows are to be considered for exposure control--relative to the remainder of the image.
Values: Total .. 0% .. 100%

The factory default setting is 100% which means that only the exposure windows are used for exposure control.

White Balance Weighting

Using this parameter, you can define how much the exposure windows are to be considered for white balancing--relative to the remainder of the image.
Values: Total .. 0% .. 100%

The factory default setting is Total which means that the entire image is used for white balance.

Average Brightness

Using this parameter, you can influence the average brightness within the exposure windows. Note, that too high a value may affect the exposure time.
The factory default setting is 40%.

Show Window

on: Shows exposure window(s) as green box(es).

The other options (Histo Raw Inside, Histo Raw Outside, ...) show additional histograms with parameters of specific image processing features.

Max. Exposure Time Set the maximum exposure time in seconds.
Min. Exposure Time Set the minimum exposure time in seconds.
Frequency of Power Supply

This parameter sets the camera to the power supply frequency of the respective country to prevent interference.

The factory default setting for Europe is 50 Hz. For Canada, the U.S.A. and Japan, set the power supply frequency to 60 Hz.

Note: In the lower part of the dialog, the current exposure settings of the image sensors are displayed.

Storing the Configuration

Click on the Set button to activate your settings and to save them until the camera is rebooted.

Click on the Close button to close the dialog. While closing the dialog, the system checks the entire configuration for changes. If changes are detected, you will be asked if you would like to store the entire configuration permanently.

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