Ithelevishini yesekethe evaliwe (i-CCTV), eyaziwa nangokuthi ukubhekwa kwevidiyo, isetshenziselwa ukudlulisa izimpawu zevidiyo kuma-remote monitors. Akukho mehluko okhethekile phakathi kokusebenza kwelensi yekhamera engaguquki kanye nelensi yekhamera ye-CCTV. Amalensi ekhamera ye-CCTV aqinile noma angashintshaniswa, kuye ngezici ezidingekayo, njengobude be-focal, i-aperture, i-angle yokubuka, ukufakwa noma ezinye izici ezinjalo. Uma kuqhathaniswa nelensi yekhamera yendabuko engalawula ukuvezwa ngesivinini se-shutter kanye nokuvulwa kwe-iris, ilensi ye-CCTV inesikhathi sokuvezwa esinqunyiwe, futhi inani lokukhanya elidlula kudivayisi yokuthwebula lilungiswa kuphela ngokuvulwa kwe-iris. Izici ezimbili ezibalulekile okufanele uzicabangele lapho ukhetha amalensi ubude be-focal obucacisiwe ngumsebenzisi kanye nohlobo lokulawula i-iris. Amasu ahlukene okufaka asetshenziswa ukufaka ilensi ukuze kulondolozwe ukunemba kwekhwalithi yevidiyo.
Amakhamera e-CCTV amaningi asetshenziswa ngezinjongo zokuphepha nokuqapha, okunomthelela omuhle ekukhuleni kwemakethe yamalensi e-CCTV. Eminyakeni embalwa edlule, kube nokwanda kwesidingo samakhamera e-CCTV muva nje njengoba izinhlaka ezilawulayo zikhiphe imithetho ephoqelekile yokufaka amakhamera e-CCTV ezitolo zokuthengisa, amayunithi okukhiqiza kanye nezinye izimboni eziqondile ukuze zigcine ukuqapha ubusuku nemini futhi zigweme imisebenzi engekho emthethweni. Njengoba ukwanda kokukhathazeka ngokuphepha mayelana nokufakwa kwamakhamera ethelevishini avaliwe ezinsizeni zasekhaya, ukufakwa kwamakhamera ethelevishini avaliwe nakho kukhule kakhulu. Kodwa-ke, ukukhula kwemakethe kwelensi ye-CCTV kuncike emikhawulweni eyahlukahlukene, okuhlanganisa nokukhawulelwa kwendawo yokubuka. Akunakwenzeka ukuchaza ubude bokugxila kanye nokuvezwa njengamakhamera endabuko. Ukufakwa kwamakhamera e-CCTV kuye kwasetshenziswa kabanzi e-United States, eBrithani, eShayina, eJapan, eNingizimu Asia nakwezinye izifunda ezinkulu, okulethe izici zokukhula okunamathuba emakethe yamalensi e-CCTV.
