Pelco C2953M-B manual Selecting Auto Exposure Settings

SELECTING AUTO EXPOSURE SETTINGS

Figure 22. Auto Exposure Page

1.Place your mouse pointer over the Imaging tab.

2.Select Exposure from the drop-down menu.

3.Select the Auto mode.

4.Select the Light Control mechanism that controls the exposure time of the camera.

Digital Exposure: The camera controls the exposure time. This setting automatically adjusts the exposure time depending on the light level of the scene, up to the maximum exposure time setting. Select Digital Exposure if a fixed iris or manual iris lens is used. Digital Exposure is the default setting.

Auto-Iris:The lens controls the exposure time. These exposure times are absolute settings and do not adjust if the light level of the scene changes. Select Auto-Iris if flickering (a stereoscopic effect or streaking on fast-moving objects) is observed in the scene.

5.Set the Exposure Compensation setting. Move the slider bar to the right to brighten the picture, or move it to the left to darken the image. The exposure compensation range is –100 to 100; the default setting is 0 (zero).

6.Color cameras only: Set the Max Exposure Time. This setting is the maximum time in milliseconds that an image is exposed. Move the slider to the right to increase the exposure time and the light sensitivity in the scene. Move the slider to the left to decrease the exposure time. The exposure time range is 1 to 500 msec; the default setting is 33.3 msec.

34 C2953M-B (10/09)