Umabonakude wesekethe evaliwe (CCTV), owaziwa nangokuthi ukubhekwa kwevidiyo, usetshenziselwa ukudlulisa amasignali evidiyo kumamonitha akude. Awukho umehluko okhethekile phakathi kokusebenza kwelensi yekhamera emile kanye nelensi yekhamera ye-CCTV. Amalensi ekhamera ye-CCTV ayalungiswa noma ayashintshana, kuye ngezicaciso ezidingekayo, njengobude bokugxila, indawo yokuvula, i-engeli yokubuka, ukufakwa noma ezinye izici ezinjalo. Uma kuqhathaniswa nelensi yekhamera evamile ekwazi ukulawula ukuvezwa ngesivinini sokuvala nokuvuleka kweiris, ilensi ye-CCTV inesikhathi sokuchayeka esinqunyiwe, futhi inani lokukhanya elidlula kudivayisi yokuthwebula lilungiswa kuphela ngokuvula iris. Izici ezimbili ezibalulekile okufanele zicatshangelwe lapho kukhethwa amalensi ubude bendawo obucacisiwe bomsebenzisi kanye nohlobo lokulawula iris. Kusetshenziswa izindlela ezihlukene zokukhweza ukukhweza ilensi ukuze kugcinwe ukunemba kwekhwalithi yevidiyo.
Aya ngokwanda amakhamera e-CCTV asetshenziselwa izinjongo zokuphepha nokugadwa, okunomthelela omuhle ekukhuleni kwemakethe yamalensi e-CCTV. Eminyakeni embalwa edlule, kube nokukhuphuka kwesidingo sakamuva samakhamera e-CCTV njengoba izikhungo ezilawulayo zenze imithetho eyimpoqo yokufakwa kwamakhamera e-CCTV ezitolo zezitolo, amayunithi okukhiqiza nezinye izimboni ezime mpo ukuze kuqashwe ubusuku nemini futhi kugwenywe imisebenzi engekho emthethweni. . Ngokukhula kokukhathazeka kwezokuphepha mayelana nokufakwa kwamakhamera kamabonakude avaliwe ezinsizeni zasendlini, ukufakwa kwamakhamera kamabonakude avaliwe nakho kuye kwanda kakhulu. Kodwa-ke, ukukhula kwemakethe kwelensi ye-CCTV kungaphansi kwemikhawulo eyahlukene, okuhlanganisa nokukhawulelwa kwenkundla yokubuka. Akunakwenzeka ukuchaza ubude bokugxila nokuchayeka njengamakhamera endabuko. Ukuthunyelwa kwamakhamera e-CCTV sekusetshenziswe kabanzi e-United States, Britain, China, Japan, South Asia nakwezinye izifunda ezinkulu, okulethe izici zokukhula okungosomathuba emakethe yamalensi eCCTV.