Light
Backlight Compensation
It is also important to consider whether there are bright spots in the picture such as car headlights which can make identification of the vehicle registration or model impossible.
This can also be a major problem where it is necessary to identify persons who are moving from bright daylight into artificial light. Very often this will result in the subject becoming an unidentifiable silhouette. The problem is exacerbated where bright spots in the images cause vertical smearing.
The answer is to specify a camera which has effective backlight compensation. This can be operated automatically by Smart Control within the camera or, where the position of the subject is
It is helpful to be able to see how effective the backlight compensation is before making final camera selection.
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The Sony Guide to CCTV . Issue 3
