Yuav Siv Li Cas Ntsig Dawb rau DSLRs

Tswj cov xim ntawm Koj Cov Khoom nrog Kev Cai Dawb Tshuav

Lub teeb muaj xim txawv xim thiab nws hloov txhua hnub thiab ntawm cov khoom siv hluav taws xob. To taub kev tshuav dawb thiab yuav ua li cas nrog nws ntawm lub DSLR lub koob yees duab yog qhov tseem ceeb heev rau tshem cov xim nraub av thiab tsim cov xim zoo nkauj.

Yog tsis muaj lub koob thaij duab, peb tsis pom qhov txawv ntawm qhov hloov xim hauv xim. Qhov muag ntawm tib neeg yog qhov zoo dua ntawm kev ua xim thiab peb lub hlwb yuav kho kom paub tias dab tsi yuav tsum dawb hauv ib qhov chaw. Ib lub koob yees duab, ntawm qhov tod tes, xav tau kev pab!

Xim kub

Raws li tau hais los saum toj no, ntau zaus ntawm hnub thiab teeb pom kev sib txawv tsim xim txawv. Lub teeb yog ntsuas nyob rau hauv kelvins thiab nruab nrab lub teeb yog tsim ntawm 5000K (kelvins), qhov sib npaug rau ib hnub ci, hnub ci.

Cov npe nram qab no yog ib qho kev qhia rau cov xim kub tsim los ntawm ntau qhov chaw ntawm lub teeb.

• 1000-2000K: Ncaws tsom iav
• 2500-3500K: Tungsten Lub Teeb (cov khoom hnyav hnyuv)
• 3000-4000K: Sunrise / Sunset (meej skies)
• 4000-5000K: Fluorescent Light
• 5000-5500K: Hluav taws xob
• 5000-6500K: Hnub Nruab Nrab (pom tseeb ntawm lub hnub saum taub hau)
• 6500-8000K: Overcast Skies (qib nrab)
• 9000-10000K: Hnyav Overcast Skies los yog Ntxoov Ntxoo

Vim Li Cas Kub Xeeb Tseem Ceeb?

Ib qho piv txwv zoo tshaj plaws ntawm kev tshuav xim thiab nws cov duab ntawm cov duab tuaj yeem pom nyob hauv ib lub tsev uas siv cov qhov muag teeb loj dua qub. Cov qij no ua rau sov, daj rau txiv kab ntxwv lub teeb uas zoo siab rau lub qhov muag, tiam sis tsis ua haujlwm zoo nrog rau xim xim.

Saib cov laus hauv tsev neeg cov duab thiab koj yuav pom tias feem ntau ntawm cov neeg uas tsis siv lub eeb muaj hawj daj daj rau tag nrho cov duab. Qhov no yog vim cov yeeb yaj kiab feem ntau tau sib npaug rau nruab hnub nrig thiab, tsis muaj cov ntxaij lim dej tshwj xeeb lossis kev luam ntawv tshwj xeeb, cov duab yuav tsis raug kho kom tshem tawm cov xim daj.

Nyob rau lub hnub nyoog ntawm cov digital photography, yam hloov . Feem ntau cov koob yees duab, txawm tias peb cov xov tooj, muaj xim pib ua hom pib. Nws npaj siab kho thiab tsim kom muaj xim ntau xim nyob hauv ib qho duab kom coj tag nrho cov suab rov qab mus rau qhov chaw nruab nrab uas zoo ib yam li tib neeg qhov muag pom.

Lub koob yees duab kho cov xim kub thaum ntsuas cov cheeb tsam dawb (lub nruab nrab cov tones) ntawm daim duab. Piv txwv li, yog tias ib qho khoom dawb muaj lub suab daj daj los ntawm lub teeb taws tungsten, lub koob yees duab yuav kho cov xim kub kom nws ua ib qho dawb dawb ntxiv los ntawm kev ntxiv rau cov xias.

Zoo li tshuab tau, lub koob yees duab tseem muaj teeb meem txog kev tshuav dawb kom zoo thiab yog vim li no nws yog ib qho tseem ceeb kom nkag siab siv ntau hom kev tshuav dawb muaj nyob rau ntawm DSLR.

Dawb tshuav nyiaj hom

Nws yog tus qauv rau DSLR cov koob yees duab kom muaj ntau hom kev tshuav dawb uas yuav cia koj kho cov xim tshuav raws li xav tau. Cov cim uas siv rau txhua tus yog cov qauv thiab universal ntawm tag nrho cov DSLRs (xyuas koj phau ntawv qhia lub koob yees duab kom paub zoo txog koj tus kheej nrog cov cim).

Qee hom kev no muaj ntau tshaj li lwm tus thiab tej zaum yuav tsum tau kawm ntxiv thiab xyaum. Lwm cov hom yog cov presets rau cov teeb meem pom dav dav uas yuav kho cov xim tshuav ntawm qhov nruab nrab kub uas tau muab hauv daim duab saum toj no. Lub hom phiaj ntawm txhua tus yog los ua kom cov xim kub rov qab rau 'daylight' seem.

Preset White Balance Hom:

• Pib Dawb Tshuav (cim - AWB) tau zoo heev hauv kev cia siab, thiab nws yuav tsum teev cov xim kub kom raug rau txhua qhov, tiam sis qhov teeb meem feem ntau teeb pom kev zoo.
• Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Nruab Hnub Nruab Nrab Nruab Nrab Suab Nruab Nrab .
• Pos huab (cim - huab) tuaj yeem siv rau hnub dhau hnub kom sov tuaj rau xim laus.
• Ntxoov ntxoo (cim - lub tsev nrog kab pheeb ces kaum sib dhos mus rau hauv av) zoo ib yam li 'cloudy' preset thiab tog twg los siv rau kev nplua xim yog tias ib qho tsis tau nws zoo.
• Flash (cim - jagged xub taw nqes) yog tsim los ntxiv sov so rau cov xim thaum siv lub eeb.
• Tungsten (lub cim - tsev neeg lub teeb nrig nrog lub teeb rays) yuav siv tau sab hauv qab hauv lub teeb pom kev thaum lub tsheb pib tsis tshua tau tshem tawm daj lossis txiv kab ntxwv nrum kiag li.
• Fluorescent (cim - kab rov tav li lub qhov cub tawg nrog lub teeb nrig) muaj txiaj ntsig nyob rau cov lag luam uas siv lub teeb ci hluav taws xob thaum lub tsheb dawb pib tsis tshem tawm xiav lossis ntsuab nrum kiag li.

Kev Tshaj Seem Dawb Tshaj Lij

• Kev Cai Dawb Qhov Nruab Nrab (cim - ob lub duab peb sab ntawm lawv sab ib lub xwmfab hauv nruab nrab) pub rau cov neeg siv los tsim lawv cov nyiaj tshuav dawb uas siv ib daim npav (uas muaj nyeem ntawv ntawm 18% grey, qhov nruab nrab ntawm qhov tseeb dub thiab dawb dawb) lossis dawb daim npav. Qhov no feem ntau siv los ntawm cov kws pab tswv yim nyob hauv ib qho chaw hauv studio thaum nws tseem ceeb heev kom muaj xim zoo nkauj (ntxiv rau hauv qab no).
• Kelvin (cim - K nyob rau hauv ib lub duab plaub) tso cai rau koj teem caij xim ntawm qhov yuav, muab ib qho kev qhia meej heev. Nws yog ib qho tseem ceeb thaum koj paub cov xim kub ntawm lub teeb ci thiab tso cai rau kev hloov nyiaj nplua kom zoo.

Yuav ua li cas los txhim kho tus Txheej Txheem Dawb Dawb

Qhov kev tsim kom muaj neeg dawb dawb yog yooj yim heev thiab yog ib qho kev xyaum uas cov kws yees duab loj yuav tsum yog tus cwj pwm ua. Tom qab ib ntu qhov txheej txheem thib ob yog qhov xwm txheej thib ob thiab qhov kev tswj ntawm xim yog tsim nyog rau kev koom tes.

Koj yuav tsum tau daim npav dawb lossis daim npav, uas yuav tau them rau hauv khw muag khoom lub koob yees duab. Cov no yog tsim los kom tsis muaj kev cuam tshuam zoo thiab muab cov lus qhia rau koj tshaj plaws rau koj. Thaum tsis muaj daim npav dawb, xaiv cov ntawv dawb ntawm daim ntawv dawb uas koj tuaj yeem pom thiab ua rau txhua qhov kev hloov kho nrog Kelvin.

Txhim kho kev cai dawb dawb:

1. Teem lub koob yees duab rau AWB.
2. Muab daim dawb los sis grey tso rau ntawm lub xub ntiag ces nws muaj lub teeb pom kev zoo poob rau nws raws li qhov kev kawm.
3. Hloov mus rau kev ua kom pom tseeb (tsis yog qhov tseem ceeb yog tsis tsim nyog) thiab tau zoo tiag tiag ces daim ntawv nyob ntawm tag nrho cov duab cheeb tsam (txhua yam yuav tsum tawm ntawm kev nyeem ntawv).
4. Siv ib daim duab. Xyuas kom pom tseeb tias qhov zoo tau zoo thiab tias daim npav puv tag nrho cov duab. Yog tias nws tsis muaj tseeb, rov qhib dua.
5. Next mus rau Kev Cai Dawb Tshuav hauv koob yees duab lub tshuab raj thiab xaiv qhov tseeb daim duab. Lub koob yees duab yuav nug seb qhov no yog daim duab uas nws yuav tsum siv los txheeb kev cai dawb tshuav: xaiv 'yog' lossis 'ok.'
6. Rov qab nyob rau sab saum toj ntawm lub koob yees duab, pauv qhov kev tshuav dawb dawb mus rau Kev Cai Dawb Tshuav.
7. Nqa lwm daim duab ntawm koj qhov kev kawm (nco ntsoov qhib lub autofocus rov qab!) Thiab pom qhov kev hloov xim. Yog hais tias nws tsis yog rau koj li, rov ua dua tag nrho cov kauj ruam no dua.

Cov Tswv Yim Siv Yim Siv Los Siv Dawb Tshuav

Raws li tau hais los saum no, koj tuaj yeem tso siab rau AWB feem ntau. Qhov no yog qhov tseeb thaum siv lwm lub teeb nrig (xws li flashgun), raws li lub teeb nruab nrab ntawm nws yuav rho tawm cov xim qej.

Qee cov xev yuav ua rau muaj teeb meem rau AWB , tshwj xeeb, cov duab uas muaj ntau yam ntuj tso los ntawm kev sov los yog txias tones. Lub koob yees duab tau misinterpret cov ntsiab lus raws li casting xim dua tus duab thiab AWB yuav sim kho raws li. Piv txwv li, nrog ib qho kev kawm uas muaj ntau tshaj ntawm qhov sov so (xim liab los yog daj), lub koob yees duab kam muab xiav lub xauv xaim dhau ntawm daim duab kom sib npaug. Ntawm cov hoob kawm, tag nrho cov no yog tawm hauv koj lub koob yees duab nrog ib tug funny cam khwb cia!

Mixed lighting (ib qho kev sib txuas ntawm khoom neeg tsim thiab lub teeb ci, piv txwv) kuj tuaj yeem cuam tshuam rau AWB hauv cov koob yees duab. Feem ntau, nws yog qhov zoo tshaj plaws rau kev siv tus nqi ntsuas dawb rau lub teeb pom kev zoo, uas yuav muab txhua yam zes los ntawm lub teeb ntom sov lub suab sov. Cov tones sov yuav zoo nkauj tshaj rau lub qhov muag tshaj qhov txias thiab txias txias tones.