Lub teeb muaj xim sib txawv, nyob ntawm lub sijhawm ntawm hnub thiab hom teeb pom kev zoo. Qhov chaw dawb tshuav ntawm koj lub koob yees duab DSLR them nyiaj rau cov hloov pauv no thiab tshem tawm cov xim uas lawv ua rau.
Xim kub
Lub teeb ntsuas hauv kelvins (K). Lub teeb nruab nrab yog tsim los ntawm 5000K, uas yog qhov sib npaug ntawm lub teeb nyob rau hnub ci, tshav ntuj.
Cov xim kub uas tsim los ntawm lwm qhov chaw ntawm lub teeb yog raws li hauv qab no:
- 1000-2000K - Teebmeem
- 2500-3500K - Tungsten teeb (ib txwm teeb hauv tsev teeb)
- 3000-4000K - Sunrise/sunset (hnub ntuj ntshiab)
- 4000-5000K - Fluorescent light
- 5000-5500K - Electronic flash
- 5000-6500K - Hnub kaj (ntuj ntshiab nrog lub hnub saum taub hau)
- 6500-8000K - skis skies (nruab nrab)
- 9000-10000K - Huab cua daj cua dub thiab ntxoov ntxoo
Vim li cas xim kub tseem ceeb
Koj tuaj yeem pom txoj kev sib npaug ntawm cov xim cuam tshuam rau cov duab hauv cov duab thaij hauv qab lub teeb los ntawm qhov muag teeb, piv txwv li. Cov qij no muab lub teeb sov, daj rau txiv kab ntxwv lub teeb uas nyiam lub qhov muag tab sis tsis ua haujlwm zoo ntawm lub koob yees duab.
Saib cov duab qub ntawm tsev neeg los ntawm hnub ua yeeb yaj kiab, thiab koj yuav pom tias feem ntau ntawm lawv coj yam tsis muaj flash muaj tag nrho cov xim daj. Qhov no yog vim feem ntau cov yeeb yaj kiab xim tau sib npaug rau nruab hnub thiab, tsis muaj cov ntxaij lim dej tshwj xeeb lossis luam ntawv, cov duab tsis tuaj yeem hloov kho kom tshem tawm cov cam daj ntawd.
Nyob rau hauv lub hnub nyoog ntawm kev yees duab digital, txhua yam tau hloov pauv. Feem ntau cov koob yees duab digital, txawm tias cov hauv xov tooj, muaj qhov sib npaug ntawm nws pib xim. Nws sim kho thiab them nyiaj rau ntau yam xim kub hauv ib daim duab kom coj tag nrho lub suab rov qab mus rau qhov chaw nruab nrab uas zoo ib yam li tib neeg qhov muag pom.
Lub koob yees duab kho xim kub los ntawm kev ntsuas qhov chaw dawb (qhov nruab nrab tones) ntawm daim duab. Piv txwv li, yog tias ib yam khoom dawb muaj lub suab daj los ntawm lub teeb tungsten, lub koob yees duab kho cov xim kub kom nws muaj tseeb dua los ntawm kev ntxiv rau cov kab xiav.
Raws li thev naus laus zis zoo, cov koob yees duab tseem muaj teeb meem kho qhov nyiaj dawb kom zoo. Tias yog vim li cas kev nkag siab yuav ua li cas siv ntau hom kev tshuav dawb muaj nyob ntawm DSLR yog qhov tseem ceeb heev.
White Balance Modes
DSLR koob yees duab feem ntau suav nrog ntau hom kev tshuav dawb uas tso cai rau koj los kho cov xim sib npaug raws li xav tau. Cov cim siv rau txhua tus yog tus qauv thiab universal ntawm DSLRs. Xyuas koj lub koob yees duab phau ntawv kom paub koj tus kheej nrog cov cim.
Qee yam ntawm cov qauv no tau siab dua li lwm tus thiab tej zaum yuav xav tau kev kawm ntxiv thiab xyaum. Lwm hom yog cov presets rau cov teeb pom kev zoo uas kho cov xim sib npaug raws li qhov nruab nrab xim kub tau muab rau hauv daim duab saum toj no. Lub hom phiaj ntawm txhua tus yog kom tsis txhob muaj xim kub rov qab rau nruab hnub.
khoom plig muaj xws li:
- Auto White Balance (AWB) tau nce siab heev hauv kev ntseeg tau, thiab nws yuav tsum teeb xim kub kom raug rau txhua qhov tab sis qhov teeb meem nyuaj tshaj plaws.
- Hnub / tshav ntuj (cim: lub hnub nrog lub teeb rays) yog siv rau hauv cov teeb pom kev zoo thiab sib npaug rau cov xim xim feem ntau siv.
- Cloudy (cim: huab) tuaj yeem siv rau hnub dhau los ua kom sov lub suab xim.
- Ntxoov ntxoo (cim: lub tsev nrog kab kab pheeb ces kaum ncab mus rau hauv av) zoo ib yam li huab cua preset thiab tuaj yeem siv los kho cov xim sib npaug thaum huab teeb tsis 'tsis tau zoo heev.
- Flash (cim: jagged xub taw tes) yog tsim los ntxiv qhov sov so thaum koj siv lub teeb.
- Tungsten (cim: lub teeb hauv tsev nrog lub teeb rays) tuaj yeem siv hauv tsev hauv qab lub teeb ci thaum AWB tsis tau tshem cov xim daj lossis txiv kab ntxwv pov tseg.
- Fluorescent (cim: kab rov tav zoo li lub raj fluorescent nrog lub teeb rays) yog qhov tseem ceeb hauv lub teeb fluorescent thaum AWB tsis tshem cov xiav lossis ntsuab pov tseg.
Advanced White Balance Modes
- Kev cai dawb tshuav (cim: ob daim duab peb sab ntawm lawv sab nrog lub xwmfab hauv nruab nrab) tso cai rau koj los teeb tsa koj tus kheej qhov nyiaj dawb siv daim npav grey uas muaj kev nyeem ntawv 18 feem pua grey, qhov nruab nrab ntawm qhov tseeb dub thiab dawb dawb. Cov kws yees duab tshaj lij feem ntau siv cov qauv no thaum cov xim zoo meej yog qhov tseem ceeb.
- Kelvin (cim: K hauv daim duab plaub) tso cai rau koj los teeb tsa xim kub ntawm qhov xav tau, muab cov txiaj ntsig meej. Nws yog qhov muaj txiaj ntsig zoo thaum koj paub cov xim kub ntawm lub teeb ci thiab tso cai rau kev hloov pauv hloov pauv tau zoo.
Yuav ua li cas los teeb tsa tus nqi dawb li cas
Setting qhov kev cai dawb tshuav yog ib qho yooj yim, thiab yog tias koj yog tus kws yees duab loj, nws yog ib qho kev xyaum zoo tsim nyog kawm. Tom qab ib ntus, cov txheej txheem dhau los ua qhov thib ob, thiab kev tswj hwm xim yog tsim nyog rau kev siv zog.
Koj xav tau daim npav dawb lossis grey, uas koj tuaj yeem nrhiav hauv online lossis ntawm lub khw muag khoom. Cov ntawv teev lus no yog cov xim nruab nrab zoo kawg nkaus thiab muab koj cov xim sib npaug zoo tshaj plaws nyeem ntawv. Thaum tsis muaj daim npav dawb, xaiv daim ntawv dawb tshaj plaws uas koj tuaj yeem nrhiav tau, thiab ua qhov kev hloov kho kom zoo nrog Kelvin teeb tsa.
Txhawm rau teeb tsa tus nqi dawb:
- Set the camera to AWB.
- Muab daim npav dawb lossis grey rau pem hauv ntej ntawm qhov kev kawm kom nws muaj lub teeb tiag tiag los ntawm nws raws li qhov kev kawm ua.
- Hloov mus rau kev tsom xam ntawm phau ntawv (tsis tsim nyog ua kom pom tseeb) thiab tau ze kom daim npav sau tag nrho thaj chaw duab. Lwm yam cuam tshuam kev nyeem ntawv.
- thaij duab. Xyuas kom tseeb tias qhov kis tau zoo thiab daim npav sau tag nrho cov duab. Yog tsis yog, rov tua dua.
- Niag mus rau Kev Cai Dawb Tshuav hauv koj lub koob yees duab cov ntawv qhia zaub mov thiab xaiv daim npav kom raug. Lub koob yees duab nug seb qhov no yog cov duab nws yuav tsum siv los teeb tsa kev cai dawb: Xaiv Y es lossis OK.
- Rov qab rau saum lub koob yees duab, hloov qhov nyiaj tshuav dawb rau Kev Cai Dawb Tshuav.
- thaij duab ntawm koj qhov kev kawm (nco ntsoov tig autofocusrov qab rau) thiab pom qhov hloov xim. Yog tias nws tsis yog raws li koj nyiam, rov ua cov kauj ruam no.
Cov Lus Qhia Kawg rau Kev Siv Nyiaj Dawb
Raws li tau hais los saum no, koj tuaj yeem tso siab rau AWB feem ntau. Qhov no yog qhov tseeb tshwj xeeb thaum koj siv lub teeb pom kev sab nraud (xws li rab phom flash) vim tias lub teeb nruab nrab nws tawm feem ntau tshem tawm cov xim casts.
Qee yam kev kawm tuaj yeem ua rau muaj teeb meem rau AWB, txawm li cas los xij, tshwj xeeb, kev teeb tsa nrog lub ntuj tsim ntau ntawm cov suab nrov sov lossis txias. Lub koob yees duab tuaj yeem txhais cov ntsiab lus tsis raug raws li kev pleev xim rau ntawm daim duab, thiab AWB sim kho kom haum. Piv txwv li, nrog ib qho kev kawm uas muaj kev sov siab tshaj (liab lossis daj tones), lub koob yees duab tuaj yeem pov lub ntsej muag xiav rau ntawm daim duab hauv kev sim sib npaug qhov no. Tag nrho qhov no yog tso koj daim duab nrog cov xim txawv txawv.
Lub teeb pom kev sib xyaw (kev sib xyaw ua ke ntawm lub teeb ci thiab ntuj tsim) tuaj yeem ua rau AWB tsis meej pem, ib yam nkaus. Feem ntau, nws yog qhov zoo tshaj plaws los teeb tsa qhov sib npaug dawb rau lub teeb pom kev zoo ib puag ncig manually, uas muab txhua yam teeb pom kev los ntawm lub teeb ambient lub suab sov. Cov tones sov zoo li ntxim nyiam rau lub qhov muag ntau dua li cov suab txias tsis muaj menyuam.
