I-aperture yelensi, eyaziwa ngokuba yi "diaphragm" okanye "iris", kukuvula apho ukukhanya kungena kwikhamera. Ukuphazamisa oku kuvulwa, isixa esikhulu sokukhanya sinokufikelela kwi-sensor yekhamera, ngaloo ndlela siphembelela ekubonakalisweni komfanekiso.
I-aperture ebanzi (i-F-inombolo encinci) ivumela ukukhanya ngakumbi ukuba kudlule, kukhokelela kubunzulu bentsimi engaphantsi komhlaba. Kwelinye icala, i-aperrerture encinci (i-F-Inani elikhulu le-F inciphisa inani lokukhanya okungena kwilensi, ekhokelela kubunzulu bentsimi enkulu.
Ubungakanani bexabiso le-aperture imelwe linani le-F. Inqaku elikhulu le-F ngokuchaseneyo, kokukhulu kwenani lokukhanya. Umzekelo, ngokuhlengahlengisa i-aperture yekhamera ye-CCTV ukusuka kwi-F2.0 ukuya kwi-F1.0, i-sensor ifumene amaxesha amane okukhanya kunangaphambili. Oku kunyuka ngokuthe ngqo kwinani lokukhanya kunokuba neempembelelo eziluncedo kumgangatho wemifanekiso iyonke. Ezinye zezi zibonelelo zibandakanya ukuncitshiswa kwentshukumo ye-blur, ezincinci ezincinci, kunye nolunye uphuculo lwentsebenzo ephantsi.
Uninzi lweekhamera zokundwendwela, i-aperture ibukhulu obuzinzileyo kwaye ayinakulungiswa ukuze iguqule ukwanda okanye ukwehla kokukhanya. Injongo kukunciphisa ububanzi besixhobo kunye nokusika iindleko. Ngenxa yoko, ezi khamera ze-CCTV zihlala zidibana nobunzima obukhulu ekudubeni kwiimeko ezinqabileyo kunakwimeko entle kakhulu. Ukubuyisela le nto, iikhamera zihlala zikhanyisekile, zisebenzisa iifilitha ze-infrared, zilungelelanise isantya seShutter, okanye sebenzisa uthotho lwesoftware. Ezi zinto zongezelelekileyo zinezinto abaziphethe kakuhle; Nangona kunjalo, xa kuziwa kwintsebenzo yokukhanya ephantsi, akukho ndlela inokuthathela ingqalelo ngokupheleleyo i-aperture enkulu.
Emarikeni, iintlobo ezahlukeneyo ze-lensed yekhamera yekhamera, ezinje nge-IRIS yeBhodi ye-IRIS, i-IRIS ye-IRIS ye-IRIS, kunye ne-IRIS iRis i-Iris, i-IRIS ye-IRIS i-IRIS, i-IRIS i-IRIS, kunye ne-IRIS Iris. Unokwenza ukhetho ngokusekwe kwiimfuno zakho kwaye ufumane ikowuti yokhuphiswano.
I-Post Time: Aug-28-2024