Koj yuav tau pom ib qhov chaw ISO rau koj cov koob yees duab. Yog tias koj yog cov tshiab rau digital photography, koj zaum ignored nws, lub koob yees duab cia li tua ntawm qhov chaw teev automatic ISO. Tab sis raws li koj cov txuj ci photography ua ntej, koj yuav xav kawm los tswj cov ISO. Thiab ua li ntawd kom zoo, koj yuav tsum xav paub txog lo lus teb rau lo lus nug: ISO yog dab tsi?
To taub koj lub koob yees duab & ISO
ISO yog ib tug xov tooj uas siv los nthuav qhia lub teeb lub siab ntawm cov koob yees duab digital duab sensor. Cov chaw siab dua ISO tso cai rau koj tua cov duab hauv cov teeb meem uas tsis tshua pom kev, tab sis cov duab zoo li no raug suab nrov thiab grainy cov duab ntau dua li cov duab tua tsis dhau ISO. Txo ISO nqis txo qhov rhiab heev ntawm cov duab sensor mus rau lub teeb, tab sis lawv kuj tsis raug kev txom nyem los ntawm cov teeb meem nrog lub suab nrov.
Cov chaw teeb tsa ISO tsis tshua zoo siv nyob rau sab nraum zoov photography, qhov teeb pom kev zoo yog qhov zoo. Cov chaw siab dua ISO zoo tshaj nyob hauv tsev photography, qhov teeb pom kev zoo yog tsis zoo.
Yos rov qab thaij yees duab
ISO muaj nws keeb kwm nyob rau hauv zaj duab xis photography, qhov chaw ISO ntsuas cov rhiab heev ntawm ib qho kev yob ntawm zaj duab xis mus rau lub teeb. Txhua yob ntawm zaj duab xis yuav muaj qhov "kev ceev" kev ntsuam xyuas, uas yog tseem cim raws li ISO, xws li ISO 100 lossis ISO 400.
Koj yuav pom tau hais tias nrog lub koob yees duab digital, lub tshuab numbering ISO tau nqa los ntawm zaj duab xis. Qhov qis tshaj ISO teeb rau feem ntau lub koob yees duab yog ISO 100, uas yog sib npaug zos rau feem ntau siv zaj duab xis ceev. Yeej, koj yuav pom ISO qhov chaw ntawm lub koob yees duab digital uas tsawg dua ISO 100, tab sis lawv tsuas yog tshwm sim nyob rau hauv siab kawg DSLR koob yees duab.
ISO thiab Kuv Yuav Ua Li Cas?
Nrog koj cov koob yees duab, feem ntau koj tuaj yeem tua ntawm ntau qhov chaw ISO. Nrhiav ib qhov chaw ISO nyob rau hauv lub koob thaij duab, qhov twg txhua qhov chaw ISO yuav tsum teev cov zauv, nrog rau qhov pib Pib. Cia li xaiv tus xov tooj uas koj xav siv rau ISO. Los yog koj tuaj yeem tawm hauv ISO ntawm qhov chaw pib, thiab lub koob yees duab yuav xaiv qhov zoo tshaj plaws ISO siv, raws li kev ntsuas ntawm lub teeb pom kev zoo hauv qhov chaw.
Qee qhov yooj yim heev, laus taw tes thiab tua cov koob yees duab yuav tsis muab rau koj qhov kev xaiv ntawm qhov ISO koj tus kheej, hauv qhov xwm txheej uas koj yuav tsis pom qhov chaw ISO hauv cov ntawv teev khoom. Tab sis qhov no yog tsawg heev nrog rau cov koob yees duab tshiab, zoo li tej yam yooj yim digital koob yees duab, thiab ib txhia smartphone smartphone, muab koj lub peev xwm los teev cov ISO manually.
ISO feem ntau yog ob npaug thaum lawv nce. Yog li koj yuav pom ISO naj npawb mus ntawm 100 mus txog 200 mus rau 400 mus txog 800 thiab ntxiv rau. Txawm li cas los, qee cov koob yees duab digital, xws li qee qhov DSLRs zoo tshaj, yuav tso cai ntau dua ISO, xws li mus ntawm ISO 100 txog 125 mus rau 160 txog 200 thiab ntxiv rau. Lub doubling ntawm tus ISO naj npawb no yog xav ua tus ISO los ntawm ib qhov nres tag nrho, thaum qhov kev ntsuam ntau dua yog xav ua tus ISO los ntawm ib feem peb ntawm kev nres.
Qee lub koob yees duab zoo tshaj plaws txawm tias yuav siv cov lus hu ua ntev ISO, qhov chaw tso cai siab tshaj plaws hauv ISO yuav tsis raug qhia raws li tus nab npawb, tab sis txhais tau tias Siab 1 los yog Siab 2. Muaj txawm tias muaj tsawg dua 1 los yog Tsawg 2. Cov kev tso cai ncua ntawm ISO tsis pom zoo los ntawm lub tshuab foob pob kws siv, yuav cia siab rau hauv ntau yam kev phem uas koj tuaj yeem ntsib nrog tus kws yees duab. Siv dua qhov chaw siv ISO ntev hauv cov duab uas tsis tshua muaj duab, koj tuaj yeem siv lub flash .