What is an auto iris lens?
An automatic iris lens is a lens with a motorized iris that automatically adjusts to only allow a specific amount of light to reach the image sensor. When there is too much light, the iris will close to reduce the amount of light let in. Auto iris lenses are primarily used in applications where light levels vary and it would be impracticable to manually adjust the lens. Automatic iris lenses are generally more efficient than the electronic shutter since they actually control the amount of light reaching the sensor as opposed to simply adjusting the shutter speed. [Back To Top] • What is Automatica Gain Control(AGC)? Most cameras come with an AGC circuit. This circuit examines brightness level of the video signal to keep it at a consistent level. For example, if the video signal is dark, it will attempt to increase the gain to bring the brightness up to a normal level. [Back To Top] • What is “Lux” for cameras? LUX is defined as “Relative amount of light that will produce a viewable ima
