EverFocus EPN4230d User Manual page 66

Lens Settings:
Focus Mode: Select one from the three modes. You can click the Push button on the right side to
instruct the camera to the selected mode. This is like a "semi-automatic" way to adjust the focus
mode to suit the user.
One Push: Selecting this option will enable the one-push-trigger focus mode. This means the

lens will hold the same focal position until the next trigger command is received. This function
helps to prevent incorrect focusing in dark environments.
Auto: Auto focus mode automatically adjusts the camera's focal mechanism to maximize the
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quality by calculating the luminance and contrast areas.
Manual: Manual mode lets the user to adjust the camera focus manually using the PTZ focus
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buttons.
Digital Zoom: Select a value to enable the digital zoom function. Select OFF to disable the function.
The digital zoom function only starts working once you have adjusted the optical zoom to the
maximum value.
Focus Near Limit: Set the minimum distance for the camera's focus near function.
Exposure Settings (AE):
Mode:
Auto: Select this option to automatically apply the optimal iris value and shutter speed. By

default, the Auto Exposure is set to Auto.
AES (Iris Priority): Select this option to manually set up the Iris value and turn off the Shutter

Speed.
ALC (Shutter Priority): Select this option to manually set up the shutter speed. The Iris value is
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automatically set up by default.
Fix: Use this configuration option if you have special requirements for the exposure setting. It
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allows you to specify the Iris position and Shutter speed.
IRIS: Manually adjust the Iris value. This option is only functional when you select Iris Priority or Fix
for AE Mode setting.
Shutter (Manual): Manually adjust the shutter speed. This option is only functional when you
select Shutter Priority or Fix for AE Mode setting. The lower the value, the more the amount of
light is received.
AGC (Manual): This option is only functional when you select Fix for AE Mode setting. The lower
the AGC level, the lower the video signal and the noise. However, the image will be darker under
low-light condition with IR-off if you set up the Iris to the maximum level.
Slow Shutter: This option is only functional when you select Auto or Iris Priority for AE Mode
setting.
AGC Limit: Set up the AGC limit level. This option is not available when you select Fix for AE Mode
setting.
Brightness: Set up the brightness value.
AE Response: Set up the Auto Exposure Response time.
Defog: Select On/Off to turn on/off the defog function.
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