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Orion/2 Outdoor
23
3.3.5 AE MODE
The exposure is the amount of light received by the image sensor and is determined
by how wide you open the lens diaphragm (iris adjustment), by how long you keep
the sensor exposed (shutter speed), and other exposure parameters. With this item,
users can define how the Auto Exposure (AE) function works.
26x Model:
• AUTO
In this mode, the camera’s IRIS and AGC (Auto Gain Control) control circuits
work together automatically to adjust the light exposure of Image sensor in order
to get consistent video output level. At this condition the shutter speed is fixed at
1/60 (NTSC) or 1/50 (PAL). Users can offset the 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. value <7> is equal
to gain value 0 dB. The camera will not compensate for 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 adjusts 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.