Lub koob yees duab tsis muaj iav, lossis lub koob yees duab tsis pom kev hloov pauv lub lens (MILC), zoo ib yam li lub koob yees duab DSLR, nrog qhov sib txawv tseem ceeb. Cov optics hauv lub koob yees duab tsis muaj iav tsis suav nrog daim iav reflex lossis pentaprism. Hloov chaw, lub teeb yog pub ncaj qha mus rau cov duab sensor hauv lub koob yees duab, qhov twg qhov kev txiav txim siab ntawm daim duab. Nws kuj yog li cas tus kws yees duab pom qhov saib ua ntej ntawm daim duab.
Yuav ua li cas Mirrorless Digital Lub Koob Yees Duab Ua Haujlwm
Yog tias koj paub txog DSLR (digital single lens reflex) lub koob yees duab, ces koj paub tias lawv muaj qhov muag pom qhov muag - ib qho uas koj saib nrog koj lub qhov muag los ua rau koj cov duab. Qhov ntawd yog ua tiav los ntawm kev muaj daim iav thiab lub pentaprism hauv lub cev ntawm lub koob yees duab. Lub teeb dhau los ntawm lub lens, bounces ntawm daim iav mus rau pentaprism, thiab tom qab ntawd los ntawm qhov pom.
Sib piv DSLR nrog lub koob yees duab tsis muaj iav, lub koob yees duab tsis muaj iav ua haujlwm li cas yog tias koj tshem daim iav thiab pentaprism? Es tsis txhob lub teeb bouncing nyob ib ncig ntawm mus txog lub viewfinder, nyob rau hauv ib tug mirrorless lub koob yees duab, nws kis tau los ntawm lub lens ncaj nraim mus rau lub digital duab sensor. Cov duab digital sensor ces muab saib ua ntej ntawm cov duab uas tus kws yees duab tab tom npaj. Hauv qee lub koob yees duab mirrorless, qhov no yog los ntawm digital viewfinder. Hauv lwm tus, nws dhau los ntawm lub vijtsam digital LCD nyob tom qab lub koob yees duab.
txiaj ntsig ntawm lub koob yees duab iav
Tus qauv tsim ntawm lub koob yees duab tsis muaj iav muaj qhov txiaj ntsig thib ob; nws ua rau lub koob yees duab sib dua. Nws yuav tsis zoo li tshem daim iav thiab lub pentaprism yuav ua rau qhov sib txawv ntawm qhov hnyav, tab sis rau cov kws yees duab uas nqa lub koob yees duab nyob ib puag ncig txhua hnub, nws ua.
Tau kawg, qhov hnyav yog ib qho txiaj ntsig tsawg dua. Ib qho tseem ceeb tshaj plaws rau cov kws yees duab tshaj lij yog lub peev xwm los siv ntau hom lo ntsiab muag nrog lub cev tsis muaj lub koob yees duab digital. Lub lens mount ntawm lub koob yees duab tsis muaj iav muaj qhov sib txawv me ntsis, uas ua rau nws muaj peev xwm ntxiv adapters (los ntawm cov tuam txhab xws li Fotodiox thiab Metabones) siv lo ntsiab muag los ntawm Sony, Canon, Fuji, thiab ntau lwm lub tuam txhab. Rau cov kws yees duab uas tau nqis peev ntau rau hauv lo ntsiab muag, nws txhais tau tias koj tsis tas yuav pib nrog kev teeb tsa tshiab tag nrho.
Txawm tias koj tsis yog tus kws yees duab tshaj lij, lub koob yees duab tsis muaj iav tuaj yeem ua tau zoo. Koj xav kom muaj lub koob yees duab uas yuav tsim cov duab hauv ntau qhov xwm txheej, thiab muaj lub koob yees duab hloov pauv tau yog qhov kev xaiv zoo rau qhov ntawd. Mirrorless koob yees duab muab tsis tau tsuas yog lub teeb yuag, tab sis qee qhov kuj muaj cov duab zoo digital sensors. Piv txwv li, Fuji GFX 50s muaj qhov nruab nrab hom sensor (uas loj dua li 35 hli puv npo tab sis me dua qhov loj hom sensor). Qhov no yog qhov tseem ceeb vim tias cov duab sensor yog qhov koj tso siab rau kom ntseeg tau tias koj tau thaij duab zoo.
Kev poob ntawm Mirrorless koob yees duab
Cov koob yees duab iav tsis zoo yog qhov zoo hauv qee qhov, tab sis lwm tus, lawv tsis ua tau zoo li DSL koob yees duab. Piv txwv li, vim tias lub koob yees duab tsis muaj iav tso siab rau cov duab digital sensor, nws muaj lub roj teeb luv dua li lub koob yees duab DSLR.
Yog tias koj thaij duab ntau hauv cov teeb pom kev tsis zoo, lub autofocus ntawm lub koob yees duab tsis muaj iav kuj tuaj yeem ua pov thawj tias muaj teeb meem. Qhov ntawd yog vim tias feem ntau lub koob yees duab tsis muaj iav siv qhov sib piv kom pom tseeb. Lub koob yees duab pom qhov tsaus ntuj tshaj plaws hauv daim duab thiab siv qhov ntawd ua qhov tseem ceeb focal point. Nyob rau hauv cov xwm txheej uas tsis muaj teeb pom kev zoo, lub teeb txaus yuav tsis taug kev los ntawm lub lens mus rau cov duab sensor kom tau txais cov duab meej thiab ntse.
Lub Koob Yees Duab Tsis Muaj Nqi Them Dab Tsi?
Yog tias koj cia siab tias yuav txo cov nqi los ntawm kev yuav lub koob yees duab tsis muaj iav, koj yuav poob siab. Cov koob yees duab hloov pauv hloov tau lub lens tuaj yeem raug nqi ntau npaum li lub koob yees duab DSLR. Txawm li cas los xij, yog tias koj tsis ntseeg tias koj xav tau lub lens hloov pauv tau, lub koob yees duab tsis muaj duab thaij duab yuav yog qhov kev xaiv zoo dua. Koj yuav muaj qee qhov kev hloov pauv ntawm DSLR yam tsis muaj lub lens hloov tau, tab sis feem ntau cov koob yees duab choj muaj ntau yam, kho lub lens uas haum rau cov kev xav tau ntawm ntau tus kws yees duab xws li. Thiab feem ntau koj tuaj yeem pom ib qho ntawm sab qis ntawm tus nqi teev.
