Articles How to choose a Network Camera All about digital CCTV How to choose CCTV Software Why use IP CCTV Systems Benefits of Network CCTV Systems CCTV Systems for Educational and Medical Establishments What are Day/Night Cameras? What is Video Compression? What is Power Over Ethernet (PoE)? What does Lux (light levels) mean? What are the various types of CCTV lenses? What are the different types of Video Sensor? What are the various Video/Exposure Controls?	What are the various Video/Exposure Controls? here are a large number of video and exposure controls available on CCTV cameras, most of them are acronyms. The most common are: AES – Automatic Electronic Shutter - the ability of the camera to compensate for moderate light changes by adjusting the camera shutter without the use of auto iris lenses. AWB – Automatic White Balance – A feature of CCD cameras used to automatically maintain the white balance of the image. BLC – Back Light Compensation - a feature on CCD cameras which electronically compensates for high background lighting to give detail which would normally be silhouetted AGC – Automatic Gain Control – Used to control the intensity of the image when light levels change without amplifying ‘noise’ at the same time. Image Quality – this is used to define the degree of compression in the images, as the quality increases the network transmission also increases.
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