Auto Exposure
Auto exposure automatically sets the amount of light detected by the camera sensor based on settings for light control, exposure compensation, and the day and night exposure times.
Light Control: Sets the mechanism that controls the exposure time of the camera. Light control settings include Digital Exposure and
When Light Control is set to Digital Exposure, the camera controls the exposure time. This setting automatically adjusts the exposure time depending on the light level of the viewed scene, up to the maximum exposure time setting. Digital Exposure is the default setting.
When Light Control is set to
NOTES:
•Select Digital Exposure if a fixed iris or manual iris lens is used.
•Select
Exposure Compensation: In
Max Exposure Time (msec): Available only with color cameras, this setting is the maximum time (in milliseconds) that an image is exposed. Increase the exposure time to increase light sensitivity in the scene. The exposure time range is 1 to 500 msec; the default setting is 33.3 msec.
Day Exposure Time (msec): Available only with day/night cameras, this setting is the maximum time (in milliseconds) that an image is exposed during daytime (color) conditions. Decreasing exposure time decreases the light sensitivity of the scene and reduces the streaking of fast moving objects (motion blur); however, it also increases the amount of noise in the scene. The day maximum exposure time range is 1 to 500 msec; the default setting is 33.3 msec.
Night Exposure Time (msec): Available only with day/night cameras, this setting is the maximum time (in milliseconds) that an image is exposed during nighttime
NOTE: Exposure time settings do not affect the image rate setting (refer to Image Rate on page 41).
31 |