What effect does lowering the minimum illumination rating of a camera have?

Lowering the minimum illumination rating of a camera effectively increases its sensitivity in low-light conditions. This means that the camera can capture images under darker environments more effectively. A lower minimum illumination rating suggests that the camera can still produce an acceptable quality image when the available light is less than higher-rated cameras can manage.

In practical terms, this capability is crucial for applications such as surveillance at night or in dimly lit areas, where capturing clear images is essential for identification and monitoring purposes. This increased sensitivity allows for better performance in challenging light conditions, helping to ensure that important details are not lost due to inadequate lighting.