Noma kunjalo, Ukunyakaza, Ukulandela Ukuhamba, noma Okuncane Kokubili, Kukhona i-AF Mode Yalokho
Amakhamera amaningi e- DSLR anezinhlobo ezintathu ezihlukene ezihlukile ze- autofocus (AF) ezenzelwe ukusiza abathwebuli bezithombe ezimweni ezahlukene. Lawa amathuluzi awusizo angasetshenziswa ukuthuthukisa izithombe futhi kubalulekile ukuqonda umehluko phakathi kwabo.
Abakhiqizi bekhamera ahlukahlukene basebenzisa amagama ahlukene ngayinye yalezi zindlela, kodwa bonke bakhonza inhloso efanayo.
I-Shot eyodwa / Shot Single / AF-S
I-Single Shot yimodi ye-autofocus iningi labathwebuli be-DSLR abasebenzisa ngamakhamera abo, futhi nakanjani okumele uqale njengoba ufunda ukusebenzisa i-DSLR yakho. Kungcono ukujwayela kule modeli ngenkathi usho izithombe ezithuthukile, njengezintambo noma namanje impilo.
Kumodi ye-Single Shot, ikhamera idinga ukugxila njalo uma uhambisa ikhamera, futhi - njengoba igama liphakamisa - lizodubula kuphela ukudubula okukodwa ngesikhathi.
Ukuze uyisebenzise, khetha iphuzu lokugxila bese ucindezela inkinobho ye-shutter isigamu kuze kube yilapho uzwa i-beep (uma unomsebenzi osebenziwe) noma uqaphele ukukhanya kokukhomba okubhekiselwe ku- viewfinder sekuqinile. Cindezela inkinobho ye-shutter ngokuphelele ukuthatha isithombe bese uphinda ngokudubula okulandelayo.
Qaphela ukuthi amakhamera amaningi ngeke akuvumele ukuthi uthathe isithombe kumodi ye-Single Shot kuze kube yilapho i-lens igxile ngokuphelele.
Amakhamera adijithali anomsila obomvu we-autofocus osiza ikhamera ukuthola ukugxila ezimweni eziphansi zokukhanya. Kwi-DSLRs eminingi, lokhu kuzosebenza kuphela kumodi ye-Single Shot. Okufanayo njalo kuvame ukusiza izigxobo ezakhiwe ezenzakalweni zangaphandle.
I-AI Servo / Okuqhubekayo / AF-C
I-AI Servo ( Canon ) noma i-AF-C (i- Nikon ) imodi yakhelwe ukusebenzisa ngezihloko ezihambayo futhi iyasiza ngempilo yasendle kanye nemidlalo yezithombe.
Inkinobho ye-shutter icindezelwe isigamu ukuze kusebenze ukugxila, njengokujwayelekile, kepha ngeke kube khona noma iyiphi i-beeps ekhamera noma izibani kusibukeli sokubuka. Kulo modi eqhubekayo, uma nje i-shutter icindezelwe isigamu, ungakwazi ukulandelela indaba yakho njengoba ihamba, futhi ikhamera izoqhubeka igxilise.
Thatha isikhathi sokudlala nale medi ngoba kungaba yinto ekhohlisayo ukujwayela. Ikhamera izobona into ofuna ukuyigxila, bese uzama ukubikezela ukunyakaza kwayo nokugxila lapho ucabanga ukuthi isihloko sizohamba ngokulandelayo.
Ngenkathi le modi ikhishwe okokuqala ayizange isebenze kahle. Kuye kwathuthuka kakhulu eminyakeni yamuva futhi abathwebuli bezithombe abaningi baye bakuthola kuwusizo kakhulu. Yiqiniso, i-high-end imodeli yekhamera, imodi eqhubekayo ehlelwe kahle futhi enembile iyaqhubeka.
I-AI Focus / AF-A
Le medi ihlanganisa kokubili izindlela zokugcina ze-autofocus zibe isici esisodwa esikahle.
Ku-AI Focus ( Canon ) noma i-AF-A (i- Nikon ), ikhamera ihlala kumodi ye-Single Shot ngaphandle kokuthi isihloko sihamba, lapho kwenzeka khona ngokuzenzakalelayo kumodi eqhubekayo. Ikhamera izothumela i-beep soft uma isihloko sigxile. Lokhu kungasiza kakhulu ukufotoza izingane, ezithandwayo ukuhamba kakhulu!