Muaj ntau tus kws yees duab tau pom tias tsis yog txhua qhov chaw hauv lawv lub koob yees duab tsuas yog tom qab siv sijhawm tom qab yuav khoom thiab siv lub koob yees duab. Nov yog pov thawj tias tus kws yees duab tab tom pib ua tiav cov txiaj ntsig ntau hauv kev yees duab. Ib qho ntawm qhov kho tau cov tes taw ntawm tes yog qhov nrawm kaw. Cia peb xam seb nws yog dab tsi thiab nws yog rau.
Raug Tawm - Lub sijhawm uas lub shutter nyob qis qis thaum qhib qhov kev txhaj tshuaj tau yog ib qho ntawm cov ntsiab lus tseem ceeb hauv kev yees duab. Peb tuaj yeem hais lub ntsiab lus thiab hais tias qhov no yog qhov tshwj xeeb rau lub nrawm nrawm uas lub tshuab kaw ua haujlwm. Tus nqi ntawm lub teeb uas ntog hauv matrix ntawm lub sijhawm tua yog nyob ntawm nws.
Raws li, yog tias lub ntsuas hluav taws xob nrawm yog luv (lub tshuab hluav taws xob ua kom nrawm nrawm), tom qab ntawd lub teeb me me poob ntawm lub lev thiab tus ncej hloov tawm mus rau qhov tsaus ntuj. Hloov siab, yog tias koj tso tus nqi loj (qeeb qeeb qeeb ceev), tom qab ntawd muaj lub teeb txaus thiab lub thav duab yuav ci dua.
Yog li ntawd, tus kws yees duab pib xav nco txog ib qho yooj yim. Thawj qhov nws yuav tsum ua thaum coj mus yees duab yog ntsuas qhov khoom ci hauv qhov chaw nws nyob. Yog tias koj tab tom tua hluav taws hauv tsev thiab tsis muaj lub teeb pom kev txaus, nws yog qhov zoo tshaj plaws los sim nyiam ib lub teeb ntxiv. Piv txwv li, taws teeb lossis qhib cov kab hlau. Thiab tsuas yog tias tseem muaj tsis txaus lub teeb, hloov cov duab hluav taws xob kom nrawm dua.
Yog tias muaj lub teeb pom kev txaus (sab hauv lossis sab nraum zoov), tom qab ntawd lub tshuab hluav taws xob ceev tuaj yeem qeeb, tom qab ntawd daim duab yuav tig los ua kom pom kev txawv dua thiab muaj lub ntsej muag. Txhawm rau kawm qhov ntsiab cai yooj yim no, xyaum. Coj mus txhaj tshuaj ntau yam teeb pom kev zoo sib txawv.
Kev ceev qeeb qeeb yog suav tias yog qhov tseem ceeb ntawm 1 txog 1/30, lub ntsuas hluav taws xob nruab nrab qeeb - 1/125 - 1/500, thiab cov tso tawm qeeb qeeb - 1/500 thiab siab dua.
Vim li cas koj yuav tsum siv txoj kab hluav taws xob ceev nrog ceev faj? Tus nqi siab dua qub muab cov blurry effect. Xav txog qhov ntuj co ntawm kev tuav tes thaum tua, koj yuav tau txais tsis muaj duab ntshiab. Yog li no, thaum tua ntawm lub qeeb qeeb qeeb, nws yog qhov zoo uas siv lub kos.
Cov nyhuv no tuaj yeem siv tau zoo, tab sis tsuas yog tus kws yees duab tau ua cov txuj ci ntawm kev ua haujlwm nrog cov parameter no ib puas feem pua. Nco ntsoov cov duab qhia txog kis las, uas lub tsheb ciav hlau zoo nkauj tau tso tseg tom qab kev dhia, dhia, ncaws pob neeg ncaws pob. Los yog tua lub nroog thaum hmo ntuj, uas cov taws teeb ua ke nkag mus rau hauv ib txoj kab teeb ci ib zaug. Tag nrho cov no yog kev qhia txog kev tuaj yeem ua siab ntev, lub ntsiab yog kawm paub siv lawv kom raug.
