Aperture Priority Mode yog dab tsi?

Cov txheej txheem:

Aperture Priority Mode yog dab tsi?
Aperture Priority Mode yog dab tsi?
Anonim

Ib qho ntawm txoj hauv kev yooj yim tshaj plaws los txhim kho koj cov duab thaij duab yog kom paub qhov tob ntawm qhov chaw. Lub tswv yim no muaj feem xyuam rau cov txheeb ze nyob deb ntawm koj daim duab ntawm qhov ze tshaj plaws hauv kev tsom xam thiab qhov deb tshaj plaws. Cov duab nrog qhov tob tob-ntawm-qhov chaw teeb tsa nthuav tawm lub foreground crisply nrog cov keeb kwm yav dhau ploj mus thiab qhov muag plooj.

Aperture qhov tseem ceeb hom ntawm lub koob yees duab ib leeg-lens reflex txiav txim siab qhov tob.

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Aperture yog dab tsi?

Qhov chaw aperture tswj ntau npaum li cas koj lub koob yees duab lens qhib kom ntes cov duab koj tab tom tua. Nws ua haujlwm zoo li cov menyuam kawm ntawv ntawm lub qhov muag: qhov ntau tus menyuam kawm ntawv dilates, ntau lub teeb thiab cov duab info tau nkag mus rau hauv lub hlwb rau kev ua haujlwm.

Cov kws yees duab ntsuas qhov loj ntawm aperture hauv f-stops-piv txwv li, f/2, f/4, thiab lwm yam. Raws li qhov koj xav tau, tus lej loj dua hauv f-stop yog, qhov me dua qhov aperture. Yog li, f/2 txhais tau hais tias lub lens loj dua qhib dua f/4.

Xav txog tus naj npawb f-stop raws li tus lej kaw: Tus lej siab dua txhais tau tias kaw ntau dua.

Siv Aperture Priority Mode los tswj qhov tob ntawm thaj teb

Aperture loj ua haujlwm nrog shutter ceev los txiav txim qhov tob ntawm thaj teb. Xav txog cov duab toj roob hauv pes uas tsuas yog thawj ob peb ntiv tes ntawm daim duab yog qhov ntse lossis daim duab ntawm lub rooj zaum uas nws thiab nws keeb kwm yav dhau yog sib npaug.

Txhawm rau xaiv aperture qhov tseem ceeb hom, saib rau A lossis AV ntawm hom hu rau sab saum toj ntawm koj lub DSLR lossis qib siab- thiab tua lub koob yees duab. Hauv hom no, xaiv qhov aperture, thiab lub koob yees duab tom qab ntawd yuav teeb tsa qhov nrawm nrawm.

Tswv yim rau kev tua hauv Aperture Priority Mode

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Thaum koj tab tom tua toj roob hauv pes (uas yuav tsum muaj qhov dav lossis qhov tob ntawm thaj teb) xaiv qhov aperture ntawm f16/22. Thaum koj tab tom tua ib yam khoom me me xws li cov hniav nyiaj hniav kub, txawm li cas los xij, qhov tob ntawm qhov chaw yuav pab kom plam tom qab thiab tshem tawm cov ntsiab lus cuam tshuam. Ib qhov tob me me kuj tuaj yeem pab rub ib daim duab lossis khoom tawm ntawm pawg neeg. Qhov aperture ntawm f1.2 thiab f4/5.6, nyob ntawm seb qhov khoom me me, yuav yog qhov kev xaiv zoo.

Tsis txhob hnov qab txog lub shutter ceev thaum koj tab tom tsom rau koj qhov aperture. Feem ntau, lub koob yees duab yuav tsis muaj teeb meem nrhiav qhov nrawm, tab sis muaj teeb meem tshwm sim thaum koj siv qhov dav dav ntawm qhov chaw tsis muaj teeb pom kev zoo, vim tias qhov dav dav ntawm qhov chaw siv lub aperture me me (xws li f16/22), uas. cia me ntsis teeb rau hauv lub lens. Txhawm rau them nyiaj, lub koob yees duab xaiv lub kaw lus qeeb qeeb kom tso lub teeb ntau rau hauv lub koob yees duab.

Nyob rau hauv lub teeb qis, lub koob yees duab yuav xaiv lub shutter ceev uas qeeb dhau rau koj tuav lub koob yees duab ntawm tes yam tsis ua rau qhov muag tsis pom. Hauv cov xwm txheej no, kev daws teeb meem tshaj plaws yog siv lub koob thaij duab. Yog tias koj tsis muaj lub koob yees duab nrog koj, nce koj cov ISO kom them nyiaj rau qhov tsis muaj lub teeb, uas yuav ua rau koj lub shutter ceev. Txawm li cas los xij, qhov ntau koj thawb koj cov ISO, ntau lub suab nrov koj cov duab qhia.

FAQ

    Thaum twg koj yuav tsum siv Aperture Priority Mode?

    Aperture Priority Mode yog qhov zoo rau lub sijhawm thaum koj xav tau qhov tob ntawm qhov chaw, xws li thaum koj thaij duab lossis toj roob hauv pes. Yog tias koj tab tom sim ntes cov ntsiab lus txav, Shutter Priority yog qhov kev xaiv zoo dua. Aperture Priority kuj yog ib qho zoo nce los ntawm Automatic rau cov neeg pib tshiab uas tsis yooj yim siv phau ntawv xwb.

    Vim li cas tib neeg siv phau ntawv hloov pauv Aperture Priority?

    Ntau tus kws yees duab tshaj lij nyiam tua hauv Manual Mode vim tias nws muab kev tswj hwm zoo tshaj plaws ntawm cov duab uas lawv ntes. ISO, aperture, thiab shutter ceev yuav tsum tau hloov kho los ntawm tus kws yees duab, thaum Aperture Priority saib xyuas qee qhov ntawm cov teeb tsa tau txais.

    Vim li cas cov duab tau ntev ntev hauv Aperture Priority hom?

    Yog tias koj lub shutter ceev qeeb thaum siv Aperture Priority, tej zaum yuav tsis muaj lub teeb txaus rau koj qhov kev kawm. Txawm li cas los xij nrhiav lwm qhov teeb pom kev zoo lossis sim ua kom koj lub koob yees duab ISO kom txog thaum koj tau txais kev kaw nrawm dua.

    Koj siv flash li cas hauv Aperture Priority hom?

    Ib lub flash sab nraud tuaj yeem siv hauv Aperture Priority hom. Lub koob yees duab yuav tsum tau kho qhov aperture thiab shutter ceev kom haum nws. Lub flash hluav taws kub thaum koj nias lub shutter tso khawm. Yog tias daim duab nyob hauv qab lossis dhau qhov pom, koj yuav tsum tau kho qhov chaw aperture manually.

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