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VPC600 Displays Double Images

Publication Date:  2019-04-04 Views:  155 Downloads:  0

Issue Description

At a newly deployed site, the VPC600 camera displays double images, as shown in the following figure:

Alarm Information


Handling Process

Replace the camera and cables. It is found that the problem occurs on the camera. Onsite engineers confirm that the light environment is relatively dark in the conference room. Log in to the web interface of the endpoint and find that the exposure mode of the camera is automatic. Adjust the exposure mode to manual and decrease the shutter value. The problem is then solved.

Root Cause

The onsite light is insufficient. The camera's shutter value is too large, requiring a very long exposure time. As a result, double images appear.


Change the shutter value.


Generally, the camera's automatic mode can adapt to onsite environment conditions. In special environment, you can change the shutter value as required in the actual environment.

The shutter value affects the exposure time. A smaller value indicates a shorter exposure time, and a larger shutter value indicates a longer exposure time. A white object or moving object may have the problem of double images or smearing.

In a dark environment, you can increase the exposure time of the camera. However, an overlong exposure time may cause the problem of double images or smearing.