Nrhiav Lub Koob Yees Duab Saib Xyuas Kom Tau Raws Li Koj Xav Tau
Lub koob yees duab ntawm lub koob yees duab yog dab tsi pub rau koj pom cov duab uas koj yuav siv. Muaj ntau hom vis dis aus siv rau ntau lub koob yees duab digital uas muaj hnub no. Thaum muas ib lub koob yees duab tshiab , nws yog ib qho tseem ceeb kom paub seb koj nyiam dab tsi.
Dab tsi yog qhov Viewfinder?
Qhov kev ywjpheej yog nyob rau saum toj kawg ntawm cov koob yees duab, thiab koj saib los ntawm nws los ua ib qho chaw.
Nco ntsoov tias tsis yog txhua lub koob yees duab digital muaj qhov pom kev. Ib co taw tes thiab tua, cov koob yees duab compact tsis suav nrog lub viewfinder, lub ntsiab lus koj yuav tsum siv LCD npo rau tha duab.
Nrog cov koob yees duab nrog rau qhov pom kev, koj ib txwm muaj qhov kev xaiv ntawm qhov kev siv qhov pom tau los yog lub LCD rau tha duab koj. Rau qee qhov DSLR koob yees duab no tsis yog qhov kev xaiv.
Siv qhov pom kev es tsis txhob siv cov npo LCD muaj ob peb qhov zoo:
- Qhov kev ywj pheej tshuav tsawg dua ntawm lub hwj chim.
- Qhov kev pom zoo pub rau kev ruaj ntseg zoo dua vim tias koj tuav lub koob yees duab los ze zog rau koj lub cev.
- Qhov pom kev ua rau koj xav tias zoo li tus kws yees duab tiag!
Thaum koj tau siv los siv koj lub koob yees duab qhov viewfinder koj tuaj yeem hloov cov koob yees duab ntawm kev tswj ntawm instinctively tsis tau saib.
Nws muaj peb hom kev xaiv lub koob yees duab.
Optical Viewfinder (ntawm lub Digital Compact Camera)
Qhov no yog ib qho yooj yim zog qhov twg optical viewfinder zooms nyob rau tib lub sij hawm raws li lub ntsiab lens. Nws txoj kev kho qhov muag tau khiav mus rau lub lens tab sis nws tsis qhia koj raws nraim li cas nyob hauv cov duab thaij duab.
Viewfinders ntawm compact, taw tes thiab tua cov koob yees duab yuav tsum me me, thiab lawv feem ntau tsuas tso tawm ncig 90% ntawm dab tsi cov sensor yuav tau ntes. Qhov no yog hu ua "kev ua yuam kev parallax," thiab nws yog feem ntau pom tseeb tias cov ntsiab lus nyob ze rau lub koob yees duab.
Nyob rau ntau qhov xwm txheej, nws yog ntau tshaj yog siv cov npo LCD.
Optical Viewfinder (ntawm lub koob yees duab DSLR)
DSLRs siv daim iav thiab lub tswv yim thiab txhais tau hais tias tsis muaj qhov yuam kev lawm. Tus kho qhov muag sightfinder (OVF) qhia txog dab tsi yuav muab tso rau lub sensor. Qhov no hu ua "los ntawm kev siv tshuab", lossis TTL.
Qhov kev ywj pheej tseem qhia txog lub txheej xwm raws li hauv qab, uas qhia tau tias pom thiab muaj cov lus qhia txog lub koob yees duab. Hauv DSLR koob yees duab feem ntau koj yuav pom thiab muaj peev xwm xaiv tau los ntawm ntau yam ntsiab lus autofocus, uas tshwm sim ua cov square boxes nrog xaiv tus tseem ceeb.
Hluav taws xob Electronic
Qhov hluav taws xob siv hluav taws xob, feem ntau luv luv rau EVF, kuj yog ib lub tshuab TTL.
Nws ua haujlwm zoo ib yam li tus npo LCD hauv lub koob yees duab compact, thiab nws pom tias daim duab tau tso rau ntawm lub lens. Qhov no yog tshwm sim nyob rau ntawm lub sij hawm tab txawm yuav muaj qee qhov qeeb.
Technically, EVF yog ib lub me me LCD, tab sis nws rov ua rau cov nyhuv ntawm cov viewfinders pom hauv DSLRs. Ib qho EVF tseem tsis raug kev txom nyem los ntawm kev ua yuam kev.
Qee qhov EVF viewfinders tseem yuav muab koj kev pom rau ntau lub zog los yog kev kho kom lub koob yees duab yuav coj mus. Koj tuaj yeem pom cov chaw tseem ceeb uas txiav txim siab taw tes rau hauv lub koob yees duab uas yuav tsom mus rau lossis nws yuav sim tau cov suab lus nrov uas yuav ntes tau. Lub EVF kuj tseem tuaj yeem txhawb qhov ci ntsa iab hauv maub scenes thiab qhia tias ntawm qhov screen.