Understandably, not everyone is a security or technical expert, thus know everything about CCTV terminology, and that is why companies get in expert help from IDtek. We are able to not only provide designs, plans, and installation of security products, but also provide training on such to ensure that the security operators know exactly how the equipment functions. One of the CCTV terms that you will come across when browsing the best systems for surveillance is that of ICR. It stands for Infrared Cutfilter Removal. With this feature, the filter of colour is removed ensuring a higher level of camera light sensitivity. Another CCTV term is that of Day & Night – referring to the light conditions under which a camera can operate effectively. Back Light Compensation is yet another phrase that you will encounter. It refers to the compensation built into a CCTV system to handle the effects of a bright light at the back of a subject under surveillance.