Cov iav dav davmuab qhov chaw pom dav dav, ua rau lawv pom tau dav dua ntawm qhov chaw. Txawm li cas los xij, vim muaj teeb pom kev tsawg hauv kev thaij duab hmo ntuj, lawv tsim cov kev cai nruj rau kev teeb tsa qhov chaw thiab xav tau kev siv cov txuj ci tshwj xeeb.
1.Kev teeb tsa qhov qhib
Kev teeb tsa lub qhov (aperture) yuav tsum tau sib npaug qhov tob ntawm daim teb thiab qhov zoo ntawm daim duab; kom ua tiav qhov tob ntawm daim teb thiab qhov "starburst" effect los ntawm cov teeb pom kev zoo, nws raug pom zoo kom siv lub qhov (aperture) hauv qhov ntau ntawm f/8 txog f/16. Feem ntau cov lens muab lawv qhov kev daws teeb meem zoo tshaj plaws thiab qhov ntse ntawm f/8 txog f/11; thaum lub qhov (aperture) raug txo qis mus rau f/11 lossis me dua (piv txwv li, f/16), cov teeb pom kev zoo hauv qhov chaw - xws li teeb ntawm txoj kev - yuav dhau los ua diffraction los tsim cov teebmeem zoo nkauj ntawm lub hnub qub.
Piv txwv li, thaum thaij duab nroog thaum hmo ntuj, teeb lub qhov (aperture) rau f/8–f/11 ua kom pom tseeb tias ob qho tib si pem hauv ntej thiab tom qab tseem ntse; txawm li cas los xij, rau cov xwm txheej tshwj xeeb xws li kev thaij duab hnub qub lossis cov hnub qub taug kev, yuav tsum muaj qhov chaw teeb tsa dav dua—tshwj xeeb yog qhov loj dua ntawm f/2.8 thiab f/4—kom ntes tau lub teeb txaus.
2.Kev teeb tsa lub qhov rai
Qhov ceev ntawm lub Shutter txiav txim siab lub sijhawm ntawm lub teeb raug thiab qhov ua rau muaj kev txav mus los; feem ntau, nws yuav tsum tau kho raws li qhov xwm txheej ntawm lub teeb pom kev zoo, nrog rau cov chaw teeb tsa tus qauv xws li 2 txog 10 vib nas this. Lub shutter qhib ntev npaum li cas, lub teeb nkag mus rau hauv lub koob yees duab ntau npaum li cas, ua rau daim duab ci dua; yog li ntawd, kev ncua lub sijhawm ntawm lub shutter tuaj yeem pab txhim kho cov ntsiab lus hauv qhov ntxoov ntxoo.
Piv txwv li, yog xav thaij cov kab kev ntawm cov tsheb khiav lossis cov teeb ci ntsa iab, koj yuav tsum ncua qhov ceev ntawm lub koob yees duab mus rau ntawm 10 thiab 30 vib nas this. Ntawm qhov tod tes, yog tias lub teeb nyob ib puag ncig ci ntsa iab (xws li hauv thaj chaw ua lag luam uas muaj neeg coob coob), qhov ceev ntawm lub koob yees duab tuaj yeem luv dua li 1-2 vib nas this kom tiv thaiv kev raug tshav ntau dhau hauv cov chaw ci ntsa iab.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias yuav tsum siv lub tripod thaum lub sijhawm thaij duab. Txawm hais tiascov iav dav davmuab qhov pom dav dav, txawm tias lub koob yees duab co me ntsis thaum lub sijhawm ntev kuj tseem tuaj yeem ua rau daim duab tsis meej, ua rau kev thaij duab tes tsis yooj yim.
Cov iav lo ntsiab muag dav dav yuav tsum tau ua tib zoo saib xyuas qhov aperture thiab shutter speed settings
3.Kev teeb tsa qhov rhiab heev ISO
ISO yog tus ua rau muaj suab nrov tshaj plaws hauv daim duab; thaum qhov chaw ISO siab tuaj yeem ua rau lub teeb ci ntsa iab dua, nws kuj ua rau suab nrov dua. Yog tias koj tswj tau qhov kaj kom zoo, koj yuav tsum siv lub koob yees duab lub hauv paus ISO (feem ntau yog ISO 100) kom tau cov duab huv tshaj plaws thiab tsis muaj suab nrov ntau tshaj plaws.
Tsuas yog xav txog kev tsa ISO - piv txwv li, mus rau 800 lossis 1600 - thaum ob qho tib si qhov aperture thiab shutter speed twb raug thawb mus rau lawv cov kev txwv, tab sis daim duab tseem tsaus dhau.
4.Kev teeb tsa tsom xam
Nyob rau hauv cov xwm txheej uas tsis muaj teeb pom kev zoo, kev tsom mus rau lub koob yees duab yuav tsis raug tag nrho. Yog li ntawd, rau kev thaij duab hmo ntuj, nws raug pom zoo kom muab qhov tseem ceeb ntawm kev tsom mus rau tes thiab teeb tsa qhov chaw tsom mus rau infinity (∞) lossis tsom ncaj qha rau lub hnub qub ci ntsa iab.
Koj siv tau lub Live View function los ua kom daim duab loj dua thiab xyuas kom meej tias qhov focus raug, yog li ntawd thiaj li ua kom ob qho tib si pem hauv ntej thiab tom qab tseem ntse. Yog tias koj lub koob yees duab txhawb nqa qhov on-screen magnification rau kev tsom mus rau qhov screen, koj tuaj yeem zoom rau hauv daim duab kom paub tseeb tias qhov focus raug.
Cov ISO thiab qhov chaw teeb tsa rau cov lens dav dav kuj tseem ceeb heev
5.Kev teeb tsa kev them nyiaj rau qhov raug
Thaum thaij duab cov nroog hauv nroog thaum hmo ntuj, feem ntau cov teeb pom kev zoo hauv zos xws li teeb ntawm txoj kev lossis cov paib neon yuav tshwm sim. Hauv cov xwm txheej no, lub koob yees duab lub tshuab ntsuas feem ntau nyiam qhov tsaus ntuj tag nrho, uas tuaj yeem ua rau cov chaw ci ntsa iab ntawm daim duab dhau los ua overexposed.
Yuav kom daws tau qhov teeb meem no, nws yog ib qho tsim nyog los siv kev them nyiaj rau qhov raug teeb meem kom tsim nyog—feem ntau yog los ntawm kev txo qhov raug teeb meem los ntawm 0.3 txog 0.7 EV—kom tiv thaiv kev poob ntawm cov ntsiab lus tseem ceeb hauv cov ntsiab lus tseem ceeb; lossis, kev hloov kho qhov raug teeb meem tuaj yeem ua tau thaum lub sijhawm ua tiav tom qab.
6.Kev teeb tsa hom ntawv thaij duab
Thaum thaij duab hmo ntuj nrog lub koob yees duablub lens dav dav, nws raug pom zoo kom siv hom ntawv RAW; qhov no khaws cia qhov siab tshaj plaws ntawm dynamic range, pab txhawb kev rov qab tau cov ntsiab lus tseem ceeb thiab cov duab ntxoov ntxoo, nrog rau kev hloov kho qhov sib npaug dawb, thaum lub sijhawm ua tiav tom qab.
Thaum thaij duab hmo ntuj nrog lub lens dav dav, ua tib zoo saib xyuas qhov chaw teeb tsa kev them nyiaj rau qhov raug
7.Kev teeb tsa hom kev ntsuas
Nyob rau hauv cov xwm txheej ntawm lub teeb pom kev zoo sib xws, hom Evaluative Metering siv tau los ntsuas qhov kev pom tag nrho ntawm qhov chaw. Hom no suav nrog ob qho tib si qhov kaj thiab qhov tsaus ntuj ntawm tus ncej kom muab tus nqi pom kev sib npaug.
Yog tias qhov chaw ntawd muaj qhov sib txawv ntau heev—xws li thaum thaij duab vaj tse uas cov chaw ci ntsa iab sawv ntsug sib txawv heev rau cov duab ntxoov ntxoo tob—koj tuaj yeem xaiv Center-weighted Average lossis Spot Metering. Los ntawm kev coj cov metering mus rau qhov ci dua lossis tsaus dua ntawm tus ncej, koj tuaj yeem ua kom ntseeg tau tias qhov kev nthuav tawm rau cov chaw tshwj xeeb ntawd yog qhov tseeb.
Ntxiv mus, txij li thaumcov iav dav davYog tias koj thaij tau ntau yam duab, yuav tsum tau saib xyuas kom meej txog kev tswj qhov kaj ntawm ntug ntawm daim duab. Dhau li ntawm qhov chaw teeb tsa qhov kaj, kev paub txog qee yam kev thaij duab—xws li kev xaiv thaij duab thaum lub sijhawm "golden hour"—yuav ua rau cov ntsiab lus pom zoo dua thiab ua rau daim duab kawg zoo dua.
Hauv kev xaus lus, los ntawm kev kho kom raug cov yam ntxwv xws li qhov aperture, qhov ceev ntawm lub shutter, thiab ISO rhiab heev—ua ke nrog cov txheej txheem tua tshwj xeeb—ib tus neeg tuaj yeem tswj tau qhov kaj thiab thaij tau cov duab zoo thaum hmo ntuj.
Cov Lus Xaus:
Los ntawm kev ua haujlwm nrog cov kws tshaj lij ntawm ChuangAn, ob qho tib si tsim thiab tsim khoom yog ua los ntawm cov kws ua haujlwm txawj ntse. Raws li ib feem ntawm cov txheej txheem yuav khoom, tus neeg sawv cev ntawm lub tuam txhab tuaj yeem piav qhia ntxiv txog cov ntaub ntawv tshwj xeeb txog hom lens uas koj xav yuav. ChuangAn cov khoom siv lens siv rau ntau yam kev siv, los ntawm kev saib xyuas, kev luam theej duab, drones, tsheb mus rau cov tsev ntse, thiab lwm yam. ChuangAn muaj ntau hom lens tiav lawm, uas kuj tuaj yeem hloov kho lossis kho raws li koj xav tau. Tiv tauj peb sai li sai tau.
Lub sijhawm tshaj tawm: Plaub Hlis-17-2026
