How to deal with dark image at night

  211   PTZ Cameras

【1】Product Model(Version)

Model: any model
Version: any version

【2】Description of the problem

Brightness of image at night is too low to detect objectives.

【3】Problem Processing (Root Cause)

1. Check if the IR light open or not (Set IR light mode to manual, and set the far/near light);
2. Increase exposure compensation as appropriate, to prevent image over exposure in daytime
3. Increase upper limit of gain as appropriate;
4. Decrease lower limit of shutter as appropriate, but not lower than 1/12, the before and after image shown as below: