Ploj mus yog hnub thaum nws tsim nyog los tig ib pawg ntawm cov tshuaj thiab ntau yam khoom siv kom tau ib daim duab - lub ntiaj teb xa mus rau digital photography. Qhov no yooj yim thiab yooj yim txoj kev tau txais ib daim duab zoo li qub rau ntawm daim ntawv ua kom yooj yim rau kev ntes cov txheej xwm tseem ceeb hauv lub neej los yog lub sij hawm zoo nkauj xwb. Niaj hnub no, yuav luag txhua tus neeg muaj cov koob yees duab digital. Txawm li cas los xij, tsis yog txhua leej txhua tus paub txog cov me nyuam me me uas cia koj coj daim duab ntawm daim duab yooj yim. Photography yog lub ntiaj teb tiag tiag nrog koj ob lub qhov muag.
Yuav ua li cas xaiv ib lub koob yees duab?
Yuav pib nrog, lub koob yees duab yog qhov zoo tshaj plaws los xaiv. Ua ntej tshaj plaws, them nyiaj rau lub ntsiab parameter - pes tsawg tus pixels ntawm daim duab. Ntawm no yog nyob ntawm qhov zoo thiab loj ntawm daim duab luam hauv yav tom ntej. Piv txwv, rau ib tug zoo 10 x 15 duab, koj yuav tsum muaj lub koob yees duab loj ntawm 1200 x 1800 pixels, uas yog kwv yees li 2.2 megapixels. Yuav kom luam tau ib daim duab 13x18, koj xav tau lub koob yees duab nrog qhov loj ntawm 3.5 Diam duab Megapixels (kwv yees li 1600 x 2200 pixels). Muaj ntau lub tuam txhab ntawm cov koob yees duab qhia tias tsis yog qhov loj ntawm lub cim, tiam sis qhov loj me me uas yog lub peev xwm ntawm kev nce, siv hom tshwj xeeb. Qhov tseeb, yuav tsis muaj kev siv ntau los ntawm qhov loj no. Cov coob ntawm Megapixels yuav tsis lav tias cov duab yuav zoo siab. Nws nyob ntawm ntau lwm yam tsis muaj, nrog rau qhov zoo ntawm daim phiaj.
Tsis muaj tsawg tus parameter tseem yog cov zoom (Zoom). Nws cov nqi yog txiav txim tau los ntawm qhov sib txawv ntawm qhov tsawg kawg nkaus thiab qhov ntev ntawm lub focal ntev. Cov zis tuaj yeem ua qhov muag (vim yog lo ntsiab muag) thiab digital (vim ua haujlwm software). Qhov zoo tshaj plaws yog tau nrog cov duab nrog optical magnification.
Daim iav.
Txhua leej txhua tus tau hnov txog lub npe hu ua "tsom iav". Xws li cov koob yees duab tso cai rau koj pom ib qho snapshot tsis yog ntawm lub cim xwb, nws tseem nyob ntawm ib qho screen tshwj xeeb, uas yog, nrog koj lub qhov muag. Txawm li cas los xij, yog tias koj tsis nyiam kev ua kom pom tseeb thiab siv tas li, qhov no tsis yog qhov zoo rau koj. Tsis tas li ntawd, cov "SLRs" pub koj ua kom zoo dua ntawm lwm qhov ntxiv - cov lens sib pauv. Tab sis yog tias koj muaj kev txwv rau hauv thiab txhais tau tias tsis muaj lub siab xav pom zoo rau tag nrho cov subtleties ntawm professional photography, koj yuav kaw koj tus kheej mus rau ib lub koob yees duab zoo tib yam.
Focal ntev.
Thawj qhov uas ciav koj lub qhov muag ntawm cov duab pib xyaum yog lub focal ntev tsis ncaj ncees lawm. Yog tias yuav kom tshem tawm ib yam khoom, koj yuav tsum tsiv tawm, qhov no txhais tau hais tias koj lub koob yees duab muaj lub focal ntev. Xws li cov koob yees duab yooj yim tua cov khoom siv nyob deb. Nrog lub focal ntev, qhov no parameter yog ze ze rau lub koob yees duab, raws li qhov tseem ceeb ntawm lub aperture. Thaum teev no hom no manually, nws yog ib qhov tsim nyog yuav tsum paub tias xaiv ib qho khoom nyob rau hauv lub foreground, xaiv tus nqi me me ntawm qhov me me. Ntawm tus nqi siab tshaj tus nqi siab, qhov ntxeev yuav siv rau txhua tus ncej. Cov ciaj ciam no feem ntau yog siv los tua shooting duab los yog ib qho khoom siv, uas koj xav kom xyuam xim.
Qhov ntxiv parameter uas muaj nuj nqis thaum rov qab tau cov duab yog qhov tseem ceeb tshaj plaws. Nws tso cai rau koj mus xauj ib qho khoom tsiv ntawm qhov loj lossis muab qhov kev kawm tshwj xeeb ntawm kev tawm suab. Nyob rau hauv qhov no, koj yuav tsum xyaum ua kom muaj kev ceev ceev ntawm 60 thiab ntev dua.
Lwm yog ISO los sis lub siab ntawm qhov kev sib tw. Qhov ntau dua no tus naj npawb, qhov me me lub teeb rau ntawm qhov kev kawm rau shooting. Koj tuaj yeem teem caij qeeb qeeb qeeb qeeb. Txawm li cas los, nws yuav tsum tau nyob rau hauv lub siab hais tias nrog zoo siab, cov duab ua "grainy", thiaj li tsis tau nqa deb nrog shooting ntawm ib tug loj ISO.
Eeb.
Tsis yog qhov kev pabcuam tshiab rau qhov tau txais cov duab zoo hauv cov teeb uas tsis tshua pom yoojyim yog flash. Hmoov tsis, lub eeb ua rau cov duab nyob hauv cov duab ntau tiaj. Hauv qhov no, koj tuaj yeem sim tua ntawm lub kaum ntse ntse, uas yuav cia koj pom cov duab ntxoov ntxoo. Ntau tus neeg thaum thaij duab nrog lub iav los ntawm qhov muag tsis raug kaw nws tes, ces koj yuav tsum ua raws nraim li thiab tsis txhob ua yuam kev.
Lwm qhov chaw.
Muaj ntau ntau yam tsis muaj, ua tsaug uas koj tuaj yeem ua rau ob peb yam thiab ua kom zoo dua qub. Piv txwv, hauv cov koob yees duab digital tam sim no muaj xws li cov kev ua ub ua no kom dawb. Tsaug rau nws, koj tuaj yeem txhim kho duab zoo nyob rau hauv kev sib txawv shooting, piv txwv, tawm sab nraud, sab hauv tsev nrog cov roj teeb lossis cov roj fluorescent. Feem ntau hom tsis tuaj yeem. Txawm li cas los xij, yog tias koj xav kom ua tiav cov teebmeem tshwj xeeb, sim sim nrog qhov chaw no.
Yog tias koj tseem tsis tau paub txog qhov "ntawm phau ntawv" ntawm koj lub koob yees duab, koj yuav tsum tau saib xyuas qhov tseeb tias lawv feem ntau muaj kev xaiv ua ntej shooting rau qee yam, xws li "puam", "snow", "party", "plants". Qhov no tso cai rau koj los ua tus yees duab zoo tshaj plaws nyob rau hauv kev txiav txim siab ua ntej. Thaum koj tau ntsib, dab tsi yog kev yees duab, thiab lub ntiaj teb yuav ua si nrog cov xim tshiab.
Rau ib tug zoo yees duab nws yog ib qho tseem ceeb uas xaiv txoj cai muaj pes tsawg ntawm kablus, uas yog, dab tsi koj yuav tua, piv txwv li, lub ntuj tiag tiag. Piv txwv li, yog tias qhov khoom ntawm koj admiration yog monument ntawm architecture, sim npaj nws kom tag nrho nws cov ntsiab lus nthuav yuav pom, qhov khoom ntawd yog nyob hauv nruab nrab ntawm tus ncej los yog sawv tawm tsam zoo rau cov keeb kwm ntawm cov uas nyob ib sab. Nws yog ntshaw uas nyob rau hauv lub thav duab tsis tau txais neeg, koj tsis npaj siab yuav tua.
Kev kawm.
Tsis txhob poob siab yog tias thawj daim duab uas koj tau txais yog tsis xav ua. Lub ntiaj teb tiag tiag hauv cov duab tsis yog dab tsi nws yuav zoo li. Tag nrho cov kev pib yooj yim tuaj nrog kev paub, yog li qhov tseem ceeb tshaj plaws uas koj yuav tsum tau ua yog muab cov duab. Muab cov duab hauv cov forums, amateurs thiab cov tub txawg, koj yeej yuav tau txais tswv yim zoo thiab cov ntsiab lus zoo. Koj tuaj yeem ua kom koj cov txuj ci tsis yog ntawm koj tus kheej xwb, tab sis kuj tseem ceeb rau cov kev kawm tshwj xeeb. Cov kws yees duab yuav paub txog koj cov kev yees duab ntawm kev yees duab thiab yuav kawm kom tau cov duab zoo uas yuav ntev ntev tsis yog koj, tab sis koj cov txheeb ze thiab cov phooj ywg.