Shutter speed yog ntev npaum li cas lub koob yees duab kaw tau qhib kom lub teeb nkag tau los ntawm lub lens mus rau zaj duab xis lossis digital sensor. Kev sib xyaw ua ke ntawm kev nthuav tawm (nthuav tawm) uas yog qhov tseeb-uas suav nrog kev kaw nrawm, lub lens qhov siab (lub lens qhov siab), thiab ISO qhov nkag siab-yuav ua kom pom lub ntsej muag ci thiab zoo ib yam. Txoj kev ceev nrawm yuav muab cov duab zoo nkauj rau koj uas koj xav tau.
Kauj ruam
Ntu 1 ntawm 2: Nkag Siab Lub Koob Yees Duab Shutter Basics
Kauj Ruam 1. Nkag siab qhov shutter thiab shutter speed
Qhov kaw yog ib feem ntawm lub koob yees duab uas thaiv lub teeb nkag los ntawm lub sensor. Thaum lub koob yees duab thaij duab, lub qhov rooj qhib sai kom nthuav tawm lub koob yees duab sensor mus rau qhov tswj tau lub teeb. Lub qhov rooj kaw dua kom thaiv lub teeb.
Shutter speed yog qhov ntev ntawm lub sijhawm qhib lub qhov rooj. Qhov no txhais tau tias lub sijhawm ntev npaum li cas lub koob yees duab sensor pom qhov xwm txheej uas koj xav ntes. Feem ntau, lub sijhawm sijhawm no tsuas yog ib feem ntawm ib pliag
Kauj Ruam 2. Paub ntsuas ntsuas qhov ntsuas qhov ntsuas
Shutter speed tau ntsuas hauv feem me me, suav txij li 1/80000 txog rau ob peb feeb ntev. Ceev ceev ntawm 1/60 thiab siab dua feem ntau yog siv nrawm tshaj plaws.
- Ceev hauv qab 1/60 tuaj yeem ua rau lub koob yees duab co, uas ua rau cov duab pom tsis meej. Koj yuav xav tau lub tswg (tripod) yog tias koj xav siv qhov kaw qhov nrawm dua.
- Feem ntau tsuas yog qhov sib faib tau sau rau ntawm lub koob yees duab. Piv txwv, "125" txhais tau tias yog 1/125 thib ob.
- Qee lub koob yees duab tuaj yeem thaij duab puv vib nas this, piv txwv li 1, 2, lossis 10 vib nas this. Qhov no yog siv rau kev yees duab qis thiab thaum muaj kev txav mus los ntau.
Kauj Ruam 3. Kawm qhov sib txawv ntawm qhov nrawm thiab qeeb qeeb
Txhawm rau paub qhov ntsuas qhov nrawm koj yuav tsum siv nyob rau hauv ib qho xwm txheej twg, koj yuav tsum xub nkag siab qhov kaw qhov nrawm nrawm thiab qhov twg qeeb. Feem ntau, 1/60 yog tus ciam teb ntawm nrawm thiab qeeb.
- Ib feem ntawm ntau dua 60, xws li 1/125, 1/500, lossis 1/2000, yog qhov nrawm nrawm. Cov cim hauv qab 60, xws li 1/30 thiab 1/15 yog qhov nrawm nrawm.
- Qhov kaw nrawm ntawm puv vib nas this, xws li 1 lossis 2 vib nas this, yog qhov kaw nrawm heev.
Kauj Ruam 4. Ua kom paub koj lub hom phiaj qhov tseem ceeb tua hom
Feem ntau cov koob yees duab feem ntau muaj hom kev tua uas ua ntej qhov nrawm. Nrog rau hom no, koj tsuas yog yuav tsum xaiv lub nrawm nrawm raws li cov duab koj xav coj, thaum lub koob yees duab yuav hloov kho qhov siab kom koj thiaj li tau txais qhov raug.
- Ntawm cov koob yees duab feem ntau, hom kev kaw qhov tseem ceeb tau sau tias "S". Ntawm qee lub koob yees duab, xws li Canon lub koob yees duab, hom no tau sau tias "Tv."
- Koj tuaj yeem tua siv hom aperture thiab cia lub koob yees duab xaiv qhov nrawm rau koj, thaum koj tsuas yog yuav tsum xaiv lub lens qhov siab.
- Hauv phau ntawv hom, uas tau sau lo lus "M", koj yuav tsum xaiv qhov nrawm thiab qhov siab.
Kauj Ruam 5. Them sai sai rau qhov focal ntev
Qhov focal ntev ntawm koj lub lens tuaj yeem ua rau lub koob yees duab co. Vim li no, koj yuav tsum xav txog koj lub focal ntev thaum xaiv qhov nrawm. Yog tias koj muaj focal ntev ntev, koj yuav xav tau siv qhov nrawm nrawm dua.
Qhov sib faib ntawm qhov nrawm yuav tsum yog yam tsawg sib npaug rau, lossis ntau dua, qhov ntev focal. Piv txwv li, 50mm lub lens yuav tsum siv lub nrawm nrawm tsawg kawg 1/50 thib ob yog lub koob yees duab tuav ntawm tes, thaum lub lens 200mm yuav tsum siv lub nrawm nrawm tsawg kawg 1/200
Ntu 2 ntawm 2: Xaiv Shutter Speed
Kauj Ruam 1. Thaum tua cov khoom tseem ceeb, xaiv qhov nrawm uas yuav tsis ua rau cov duab tsis meej
Qhov tseem ceeb tshaj plaws thaum tua yog tias koj yuav tsum zam lub koob yees duab. Siv qhov nrawm nrawm kom tsis txhob muaj lub koob yees duab co thiab cov duab tsis meej. Xaiv qhov nrawm nrawm tsawg kawg 1/60 rau hom duab no. Yog tias koj txhais tes tsis co co yooj yim, 1/30 kuj tseem yuav txaus.
- Txog cov xwm txheej zoo li no, hloov qhov nrawm nrawm yuav luag tsis muaj kev cuam tshuam dab tsi (tshwj tsis yog kev nthuav dav dav) tshwj tsis yog cov khoom koj tab tom tua tam sim txav me ntsis, uas tuaj yeem ua rau cov duab tsis meej los ntawm ntau lub pixels. Tab sis txawm hais tias qhov no yuav tshwm sim, nws tsuas yog ua kom cov duab saib me ntsis ntse dua, tshwj tsis yog cov khoom txav mus ib puag ncig txaus uas nws tuaj yeem pom qhov muag plooj hla ntau lub pixels.
- Yog tias koj siv lub lens lossis lub koob yees duab nrog thev naus laus zis thev naus laus zis, koj tuaj yeem xaiv qhov nrawm nrawm ib lossis ob qib qeeb dua. Koj kuj tuaj yeem ua qhov no yog tias koj tuav koj lub koob yees duab kom zoo.
- Muab koj lub koob yees duab tso rau ib yam uas ruaj khov, xws li lub koob yees duab, tuaj yeem txo lub koob yees duab co, tshwj xeeb tshaj yog tias koj xaiv qeeb qeeb.
Kauj Ruam 2. Xaiv qhov nrawm nrawm yog tias koj xav kom khov suab
Kev txiav txim siab seb lub hom phiaj koj xav tua yog puas tseem los yog txav mus los tuaj yeem pab koj hauv kev xaiv qhov nrawm. Yog tias koj xav tua qee yam txav mus, koj xav tau nrawm nrawm dua.
- Siv 1/500 rau cov duab dav dav ntawm cov haujlwm niaj hnub, kev ua kis las, thiab lwm yam kev kawm.
- Siv 1/1000-1/4000 thaum tua nrawm thiab kaw cov ncauj lus. 1/1000-1/2000 zoo heev rau kev thaij duab noog. 1/1000 yog qhov zoo rau thaij duab tsheb.
Kauj Ruam 3. Siv qhov nrawm nrawm kom tau txais cov lus tsa suab plooj (qhov muag plooj tshwm sim los ntawm kev txav)
Thaum koj tua ib yam dab tsi hauv kev txav, qeeb qeeb yuav ntes cov lus tsa suab tsis meej. Qhov no tuaj yeem yog qhov ua tau zoo tshaj plaws rau cov duab ncaws pob thiab cov duab uas koom nrog ntau qhov kev nqis tes ua. Kev kaw lub suab qeeb yuav ua rau koj pom qhov muag tsis pom.
- Koj kuj tseem tuaj yeem siv txoj hauv kev no los tsim qhov ua kom pom tseeb, qhov twg koj lub hom phiaj yuav tshwm sim tseem tiv thaiv keeb kwm yav dhau los. Txhawm rau ua tiav cov txiaj ntsig no, siv qhov ceev ntawm 1/15. Ua raws qhov kev txav ntawm koj lub ncauj lus kom lub keeb kwm yav dhau thiab tsis yog cov ntsiab lus txav mus rau lub koob yees duab thiab ua qhov muag tsis pom.
- Siv qhov nrawm nrawm dua thaum koj tab tom tua cov dej uas koj xav kom pom qhov muag tsis pom.
Kauj Ruam 4. Txiav txim siab qhov ceev raws li qhov raug
Tus nqi ntawm lub teeb cuam tshuam rau qhov pom ntawm koj daim duab. Lub teeb pom kev txiav txim siab qhov nrawm koj yuav tsum xaiv. Yog tias koj tso lub teeb ci ntau dhau, koj daim duab yuav dhau mus. Ntawm qhov tod tes, yog tias koj tsis tso lub teeb txaus rau hauv koj lub koob yees duab, koj cov duab yuav tsaus ntuj heev.
- Qhov nrawm nrawm dua yog qhov tsim nyog thaum muaj lub teeb ci ntau.
- Kev kaw lub suab qeeb qeeb tau siv hauv qhov pom kev qis, yog li lub teeb ntau tuaj yeem nkag mus rau lub koob yees duab thiab ua kom pom koj cov duab. Hauv cov xwm txheej uas koj muaj lub teeb pom kev tsawg heev, tej zaum koj yuav tsum tau siv lub nrawm nrawm li ob peb feeb. Rau qhov no koj yuav xav tau lub tsaj lossis lwm yam kom koj lub koob yees duab ruaj khov.
- Kev kaw qhov nrawm tuaj yeem siv hmo ntuj. Qhov no yuav ua rau muaj kev cuam tshuam ntawm lub teeb ci, zoo li koj tau thaij duab lub tsheb lossis foob pob hluav taws. Sim kaw qhov nrawm ntawm 2-30 vib nas this yog tias koj xav tau qhov txiaj ntsig no.
- Txhawm rau tua cov lus tsa suab hauv thaj chaw tsaus ntuj, nce koj li ISO rhiab heev thiab xaiv qhov kaw nrawm dua. Siv lub flash sab nraud. Ua ke nrog qhov kaw qhov nrawm nrawm (piv txwv li 1/250), koj yuav tuaj yeem khov cov lus tsa suab.
Lub tswv yim
- Qhov teeb tsa ISO yuav xav tau hloov kho thaum thaij duab. Kev teeb lub qhov taub kuj tseem yuav tsum tau kho.
- Yog tias koj lub koob yees duab feem ntau siv qhov raug tsis raug, txawm tias koj tau teeb tsa lawv kom raug thiab teeb pom kev zoo ib txwm muaj, koj yuav xav hloov koj lub koob yees duab kaw.
