internal brightness reference level through auto Exposure Comp. to control the brightness of camera. The value of Exposure Comp. is selectable from <0> to <16> and the gain varies from -10.5 dB to 10.5 dB. Each step is 1.5 dB; the Exposure Comp. vaue <7> is equal to gain value 0 dB. The camera will not compensate brightness when the Exposure Comp. is set to <OFF>. The default setting is <OFF>.

BRIGHT

The brightness control function adjusts IRIS and AGC gain using an internal algorithm. The brightness is controlled by gain when the light condition is dark and by iris when the light condition is bright.

SHUTTER

With this option, the SHUTTER speed takes main control of the exposure, and both IRIS and AGC will function automatically in cooperation with shutter speed to achieve consistent exposure output.

GAIN

The auto GAIN control function takes main control of exposure with priority over SHUTTER and IRIS. The internal circuit will function automatically to get consistent exposure.

IRIS

With this option, the IRIS function adjust the exposure in higher property. SHUTTER speed and AGC circuit will function automatically in cooperating with IRIS to get consistent exposure output. The opening of a lens controls the amount of light reaching the surface of the selected device. By increasing the F-stop number (F/1.6, F/2, F/2.4, etc.), less light is permitted to pass.

¾22x MODEL / 23x MODEL AUTO

In this mode, the camera’s Shutter, IRIS and AGC control function work automatically to compensate the light exposure of image sensor for consistent video output level. IRIS OFF SET is used to set the level of IRIS variation.

SHUTTER

With this option, the SHUTTER priority is higher than IRIS and AGC; IRIS and AGC circuit will function automatically in cooperating with SHUTTER

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ACTiSYS CAM-6500 user manual Bright, Shutter, Gain, Iris