ISO: Dab tsi yog Hauv Lub Koob Yees Duab?
ISO, ib cov ntawv acr muab los ntawm International Organization for Standardization, yog ib qho tseem ceeb ntsuas ntawm lub koob yees duab rhiab heev rau lub teeb. Raws li peb siv digital imaging technology hauv cov koob yees duab Niaj hnub no, nws yuav pab tau kom nkag siab tias ISO txhais li cas hauv cov ntsiab lus no.
Lo lus tsuas piav qhia seb lub teeb tuaj cuam tshuam li cas rau txoj kev koj lub koob yees duab pom tej yam - hauv lwm lo lus, lub teeb yuav tsum tau "pom" ib qho chaw. Tus lej ISO siab dua qhia tias lub koob yees duab tuaj yeem pom lub teeb ntau dua; tus lej ISO qis dua qhia tau tias muaj kev nkag siab tsawg dua thiab yog li lub teeb xav tau tsawg dua los ntawm lub koob yees duab.
- Tus lej ISO siab dua qhia tau tias lub koob yees duab tuaj yeem pom lub teeb ntau dua.
- Tus lej ISO qis dua qhia tias muaj kev nkag siab tsawg dua thiab yog li lub teeb xav tau tsawg dua los ntawm lub koob yees duab.
Lub tswv yim no tuaj yeem ua rau muaj qhov sib txawv loj heev thaum tua hauv lub teeb qis lossis thaum xav tau sai dua shutter speeds nyob rau hauv nruab hnub nrig - li no nws tseem ceeb rau cov kws yees duab. Los ntawm kev kho koj cov teeb tsa ISO koj tuaj yeem nce lossis txo qhov ci ntsa iab nyob ntawm qhov xwm txheej.
Hauv kab ntawv no peb yuav npog:
ISO yog dab tsi?
ISO stands rau International Organization rau standardization thiab yog qhov chaw kho tau ntawm lub koob yees duab uas txiav txim siab qhov rhiab heev ntawm lub sensor. Cov qib ISO feem ntau yog qhia raws li cov lej xws li 100, 200, 400 thiab tuaj yeem nyob ntawm 50 mus rau siab li 12800 lossis siab dua nyob ntawm lub koob yees duab. ISO nqis cuam tshuam qhov ci ntawm koj cov duab thiab cov suab nrov uas koj yuav muaj nyob rau hauv lawv. Cia peb ua tib zoo saib seb nws ua haujlwm li cas.
- ISO sawv cev rau International Organization for Standardization
- ISO nqis cuam tshuam qhov ci ntawm koj cov duab thiab cov suab nrov uas koj yuav muaj nyob rau hauv lawv
- Cov qib ISO feem ntau yog qhia raws li cov lej xws li 100, 200, 400 thiab tuaj yeem nyob ntawm 50 mus rau siab li 12800 lossis siab dua nyob ntawm lub koob yees duab.
- Cia peb ua tib zoo saib seb nws ua haujlwm li cas.
Kev txhais ntawm ISO
ISO, uas sawv cev rau International Organization for Standardization, yog ib tug lej siv rau lub koob yees duab rhiab heev rau lub teeb. Qhov siab dua tus lej ISO, lub koob yees duab rhiab ntau dua, tso cai rau koj los txhaj tshuaj hauv dimmer teeb pom kev zoo tej yam kev mob. Thaum koj tua nyob rau hauv qhov teeb meem tsis tshua muaj teeb meem nrog lub koob yees duab digital, nws yog ib qho tseem ceeb uas yuav tau xaiv qhov zoo ISO teeb tsa kom ntes cov duab zoo.
Thaum xaiv qhov teeb tsa ISO rau koj lub koob yees duab muaj ntau yam yuav tsum xav txog:
- Hom teeb pom kev zoo li cas koj tua nyob rau hauv thiab nws puas yog dag lossis ntuj?
- Yuav ceev npaum li cas koj xav tau koj kaw hluav taws xob (lub sij hawm npaum li cas uas koj lub shutter yuav qhib) yuav?
- Ntau npaum li cas suab nrov (graininess tshwm sim los ntawm nce cov duab sensor rhiab heev) koj tuaj yeem zam tau hauv qhov chaw tsaus?
Tag nrho cov xwm txheej no yuav tsum tau ntsuas ua ntej kev xaiv qhov chaw.
Cov txheej txheem ntau ntawm ISO qhov chaw siv feem ntau yog nyob nruab nrab ntawm 100 thiab 200. Kev nce koj cov ISO ntau dhau qhov no yuav tso cai rau koj tua hauv cov teeb pom kev qis tab sis tuaj yeem ntxiv cov suab nrov lossis graininess yog li nws yuav tsum feem ntau tsuas yog ua thaum tsim nyog kiag li. Thaum tua sab nraum zoov hauv lub hnub ci ci lossis teeb pom kev zoo nyob sab hauv tsev nrog lub teeb txaus thiab tsis muaj kev hloov pauv, nws qhov zoo tshaj plaws kom koj cov ISO ntawm nws theem pib uas feem ntau yog 100 lossis tsawg dua nyob ntawm kev tsim thiab qauv ntawm koj lub koob yees duab. Nws yog ib qho tseem ceeb uas cov neeg ua yeeb yaj kiab thiab cov kws yees duab tau yooj yim siv lawv lub koob yees duab ntawm ISOs sib txawv vim qhov no yuav ua rau lawv tau txais txiaj ntsig zoo txawm tias thaum ntsib teeb meem teeb pom kev zoo xws li kab tshoob kev kos lossis kev ua kis las.
Yuav ua li cas ISO cuam tshuam qhov raug
Hauv lub ntiaj teb ntawm kev yees duab digital, ISO yog siv los kho lub koob yees duab rhiab npaum li cas rau lub teeb. Lub sij hawm Ameslikas xa mus rau cov koob yees duab zaj duab xis, uas ua haujlwm ntawm lub hauv paus ntsiab lus zoo sib xws - tso siab rau qhov rhiab heev ntawm zaj duab xis cov txheej txheem photosensitive, los yog emulsion, kom nthuav dav thiab tsim cov duab.
Cov kauj ruam hauv qab no piav qhia txog yuav ua li cas ISO cuam tshuam rau qhov raug rau cov koob yees duab digital:
Pib nrog koj tus kheej nres cov lus tsa suab storyboards
Sau npe yuav mus rau peb tsab ntawv xov xwm thiab tau txais koj dawb download nrog peb storyboards. Pib nrog coj koj cov dab neeg ciaj sia!
Peb tsuas yog siv koj li email chaw nyob rau peb tsab ntawv xov xwm thiab hwm koj tus kheej
- Lub koob yees duab lub teeb ntsuas lub teeb nyeem lub teeb muaj nyob hauv qhov chaw thiab teeb tsa lub hauv paus ISO nqi.
- Los ntawm kev kho cov ISO nce lossis nqis los ntawm kev nyeem ntawv hauv qab no, koj tuaj yeem ua tiav ntau theem ntawm kev nthuav tawm hauv koj daim duab.
- Nce lub ISO yuav cia koj thaij duab nrog lub teeb tsawg dua li qhov xav tau ntawm qhov qis dua ISO tus nqi - muab rau koj tswj ntau ntawm koj qhov chaw teeb pom kev zoo yam tsis muaj kev siv lwm yam kev ntsuas xws li nce shutter ceev lossis qhib koj lub aperture ntau dua li qhov xav tau.
- Nce koj ISO siab dhau yuav ua rau graininess thiab suab nrov hauv koj daim duab; conversely, txo qis nws ntau dhau tuaj yeem tsim qhov kev txhaj tshuaj tsis zoo nrog cov ntsiab lus me me lossis qhov sib txawv hauv cov duab ntxoov ntxoo thiab cov ntsiab lus zoo ib yam. Nws yog ib qho tseem ceeb kom nrhiav tau 'qhov chaw qab zib' rau koj lub koob yees duab tshwj xeeb raws li nws haiv neeg ISO kev teeb tsa piv rau lub peev xwm ntawm lub lens thiab ambient lub teeb tam sim no thaum thaij duab.
Hauv qhov tseem ceeb, nrhiav pom qhov chaw qab zib yog txhua yam hais txog kev ua tiav qhov kev pom zoo ntawm lub suab nrov tsawg thiab raug txaus - ua kom txhua yam hauv ib qho duab yog qhov ntse li koj xav yam tsis muaj kev cuam tshuam qhov ci ntsa iab thiab cov duab ntxoov ntxoo cov ntsiab lus uas tej zaum yuav poob nrog. siab dua ISO cov los yog tsawg kawg lo ntsiab muag tuaj yeem xav tau qee qhov kev sim-thiab-yuam kev sim nrog cov chaw sib txawv; Hmoov zoo niaj hnub DSLRs muaj qhov dav dav dav thaum nws los txog lawv lub peev xwm ntsuas kev ntsuas siab dua yog li koj tsis zoo li xav tau rau kev xaiv!
ISO hauv Digital Cameras
ISO stands rau International Organization for Standardization thiab yog ib qho kev ntsuas ntawm rhiab heev ntawm cov duab sensor nyob rau hauv lub koob yees duab digital. Txij li ISO yog qhov ntsuas ntawm qhov rhiab heev, nws tuaj yeem cuam tshuam rau lub teeb uas koj lub koob yees duab ntes thaum thaij duab. Kev paub siv thiab kho ISO yuav pab tau koj kom tau txais kev txhaj tshuaj zoo txawm tias qhov teeb pom kev zoo li cas. Cia peb saib qee yam ntawm ISO:
- ISO Ceev
- ISO khwv
- ISO Chaw
Yuav ua li cas kho ISO hauv Digital Cameras
ISO, los yog International Standards Organization, yog ib tug lej ntsuas qhov system siv los ntsuas rhiab heev rau lub teeb. Feem ntau, tus lej qis (50-125) yuav tsim cov duab ci dua nrog cov nplej thiab suab nrov tsawg. Raws li cov lej nce mus rau ntau pua thiab ntau txhiab, cov duab yuav tshwm tsaus dua tab sis muaj ntau yam nthuav dav. Qhov qis ISO ceev xws li 50 lossis 100 feem ntau yog tshwj tseg rau kev tua hauv nruab hnub nrig, thaum siab dua ISOs xws li 400 lossis 800 yuav haum rau huab cua / sab hauv tsev.
Thaum koj tab tom tua digitally nrog lub koob yees duab digital SLR (DSLR) lossis lub koob yees duab tsis muaj iav, kho koj lub ISO yog qhov yooj yim zoo nkauj - tsuas yog tig ib qho ntawm nws cov pob qhov rooj lossis kais nws cov ntawv qhia zaub mov kom pom koj qhov kev xav tau teeb tsa. Koj tuaj yeem tswj ISO manually los ntawm kev teeb tsa ua ntej txhua qhov kev txhaj tshuaj thaum thaij duab hauv phau ntawv hom ntawm full-size DSLRs.
Thaum nws los txog rau taw tes-thiab-tua cov koob yees duab digital, koj tuaj yeem pom lub pob sau "ISO" uas hloov lub koob yees duab rhiab npaum li cas rau lub teeb thaum koj nias nws. Txhawm rau kho ISO ntawm cov koob yees duab no, tsuas yog tuav lub pob no kom txog thaum cov ntawv qhia zaub mov tshwm nyob rau hauv - los ntawm qhov ntawd koj tuaj yeem voj voog los ntawm cov teeb tsa ISO kom txog rau thaum koj pom ib qho uas ua haujlwm rau koj qhov xwm txheej tam sim no.
- 50-125 - cov duab ci dua nrog cov nplej tsawg thiab suab nrov
- 400-800 - haum rau huab cua / sab hauv tsev scenarios
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias tsis yog txhua lub koob yees duab digital compact muaj qhov hloov kho ISO - yog li xyuas kom koj li ua ntej sim kho nws qhov rhiab heev!
Cov txiaj ntsig ntawm Kev Kho ISO hauv Cov Koob Yees Duab Digital
Kho cov Kev teeb tsa ISO hauv koj lub koob yees duab digital tuaj yeem cuam tshuam zoo rau koj cov duab. Feem ntau hu ua zaj duab xis ceev, qhov teeb tsa no cuam tshuam rau lub koob yees duab rhiab npaum li cas thaum kaw lub teeb. Kev teeb tsa ISO siab dua yuav ua rau lub koob yees duab rhiab heev rau lub teeb thiab tso cai rau lub shutter ceev, thaum lub ISO qis dua yuav ua rau cov duab zoo dua, tab sis yuav xav tau ntev dua los yog lwm yam kev ntsuas xws li teeb pom kev zoo ntxiv.
Kev siv ISO siab dua feem ntau txhais tau tias muaj suab nrov nrov ntawm cov duab, tab sis nrog cov koob yees duab niaj hnub thiab cov tswv yim txo cov suab nrov no tuaj yeem txo qis dua yog tias cov chaw teeb tsa raug. Xaiv qhov zoo tshaj plaws ua ke ntawm kev teeb tsa raug thiab xaiv qhov tsim nyog ISO yog cov txuj ci tseem ceeb rau txhua tus kws yees duab digital.
Cov txiaj ntsig ntawm kev kho koj lub koob yees duab digital lub teeb tsa ISO suav nrog:
- Lub shutter ceev ceev rau kev ntes cov kev txhaj tshuaj thiab khov zog
- Txhim kho lowlight photography clarity los ntawm nce rhiab heev rau lub teeb
- Txhim kho kev yees duab nrawm xws li kev txhaj tshuaj hmo ntuj thiab hnub qub txoj kev
- Kev tswj kom zoo dua qhov tob ntawm thaj teb thaum thaij duab lossis kaw cov duab xwm txheej
xaus
ISO yog ib tug kev teeb tsa lub koob yees duab digital uas tso cai rau koj los tswj qhov rhiab heev ntawm koj lub koob yees duab sensor. Qhov qis dua qhov teeb tsa ISO, lub koob yees duab tsawg dua yuav ua rau lub teeb, thiab lub suab nrov tsawg nws yuav qhia rau koj cov duab. Ntawm qhov tod tes, cov teeb tsa ISO siab dua yog qhov nkag siab ntau dua rau lub teeb thiab tso cai rau koj thaij duab hauv lub teeb qis nrog lub sijhawm luv luv, tab sis ua rau muaj suab nrov dua.
Nws yog ib qho tseem ceeb rau kev sim nrog ISO chaw thiab kawm seb lawv ua haujlwm li cas vim tias lawv ua lub luag haujlwm tseem ceeb hauv kev tswj tsis tau lub teeb pom kev zoo nkaus xwb tab sis kuj tso cai rau koj los tsim ntau hom duab raws li qhov ceev ceev. Nrog qee qhov kev xyaum koj tuaj yeem paub siv ISO thiab paub ntau dua nrog kev siv koj lub koob yees duab phau ntawv hom.
- Cov teeb tsa ISO qis dua tsis tshua muaj siab rau lub teeb thiab tsim suab nrov tsawg.
- Kev teeb tsa ISO siab dua yog qhov nkag siab dua rau lub teeb thiab tso cai rau koj thaij duab hauv qhov chaw qis nrog lub sijhawm luv luv, tab sis ua rau muaj suab nrov dua.
- ISO teeb tsa ua lub luag haujlwm tseem ceeb hauv kev tswj lub teeb rhiab heev thiab tso cai rau koj los tsim ntau hom duab.
- Nrog kev xyaum, koj tuaj yeem paub siv ISO thiab paub ntau dua nrog kev siv koj lub koob yees duab phau ntawv hom.
Los xaus, mastering ISO nqis yog qhov tseem ceeb rau kev thaij duab zoo. Nrog qee qhov kev xyaum thiab kev sim, koj tuaj yeem siv ISO teeb tsa los tsim cov duab zoo nkauj thiab ua tau zoo dua nrog kev siv koj lub koob yees duab hom phau ntawv.
Nyob zoo, Kuv yog Kim, niam thiab ib tus neeg nyiam nres nrog keeb kwm yav dhau los hauv kev tshaj tawm thiab kev txhim kho lub vev xaib. Kuv muaj kev mob siab rau kev kos duab thiab kev ua yeeb yam, thiab tam sim no kuv tab tom dhia taub hau ua ntej mus rau hauv lub ntiaj teb nres. Nrog rau kuv qhov blog, Kuv tabtom qhia kuv cov kev kawm nrog koj.
