Lub koob yees duab yog qhov tsim nyog thiab pab tau yam. Cov txheej txheem no tam sim no muaj rau yuav luag txhua tus, tab sis qhov tseem ceeb tsis yog ua kom yuam kev nrog txoj kev xaiv, vim tias muaj cov koob yees duab ntau heev thiab koj yuav tsum mus cuag qhov teeb meem no tiag.
Cov Lus Qhia
Kauj ruam 1
Ua ntej tshaj plaws, koj yuav tsum txiav txim siab rau lub hom phiaj dab tsi koj thiaj li yuav lub koob yees duab. Yog tias koj xav tau nws rau kev tua "tsev neeg", lossis "tua koj tus kheej", tom qab ntawd nws yog qhov tsim nyog txaus kom tau txais cov khoom hu ua "xab npum". Xws li lub koob yees duab yooj yim heev. Nws yog qhov me me, yooj yim rau nqa thiab thauj, thiab tseem ua tau txhua yam ntawd uas tsim nyog rau kev niaj hnub tua.
Kauj ruam 2
Thaum xaiv lub koob yees duab, tsis txhob tsom rau tus naj npawb ntawm megapixels. Tus yam ntxwv tseem ceeb ntawm lub koob yees duab tseem yog lub lens. Yog lawm, hauv cov koob yees duab kev tshaj lij nws loj dua thiab zoo dua, tab sis qhov no tsis txhais tau tias koj tsis tuaj yeem nrhiav pom lub "xab npum" zoo. Lo ntsiab muag yog siv los kom tau txais cov duab khov ntawm cov hauv matrix. Nov yog qhov pib yooj yim thiab kim tshaj plaws hauv lub koob yees duab. Qhov loj dua nws cov taub, qhov zoo dua daim duab yuav. Xaiv ib lub koob yees duab nrog qhov loj.
Kauj ruam 3
Raws li rau hauv matrix, qhov loj tshaj plaws tsis yog tus naj npawb ntawm pixels, tab sis qhov tsis zoo ntawm matrix. Muaj ntau ntau hom kev txhoj, rau "xab npum thawv" nws yog "CCD matrix". Yog tias koj tseem txiav txim siab ntawm tus txheej txheem cov kws tshaj lij, tom qab ntawd nws yog qhov zoo dua los muab qhov kev nyiam ua rau lub koob yees duab nrog CMOS txhom.
CMOS yog qhov piv txwv ntawm koj lub computer lub RAM, qhov twg nyeem tuaj yeem nqa los ntawm txhua qhov chaw, koj tsuas yog yuav tsum teev tus lej xov tooj thiab tus lej xov tooj.
Kauj ruam 4
Thaum xaiv lub koob yees duab, nws yog ib qho tseem ceeb kom tsis txhob hnov qab txog nws txoj haujlwm zoom. Tus nqi "zoom" yog ib qho txiaj ntsig los, txhais raws li qhov sib txawv ntawm qhov siab tshaj plaws thiab tsawg kawg focal ntev. Rau cov koob yees duab "point-and-shoot", qhov no yog digital ncab, uas yog, kev nthuav dav ntawm daim duab uas twb ua tiav lawm, thaum siv koob yees duab tshaj lij, qhov kev ncab no yog qhov kho qhov muag, uas muab cov duab zoo dua.
Kauj ruam 5
Kev kawm tau zoo dua hauv kev xyaum. Qhov zoo tshaj plaws kom pom lub koob yees duab zoo yog mus rau tom khw thiab coj ob peb xeem kev txhaj tshuaj. Qhov no yuav ua rau koj pom qhov zoo ntawm cov duab, qhov ci ci ntawm cov duab tshwm sim thiab lawv qhov pom tseeb. Thaum siv lub koob yees duab, thaij ob peb daim duab ntawm qhov siab tshaj plaws kom pom tseeb cov duab pom meej. Ntau zaus, thaum muaj qhov siab, daim duab pib "ntab".
Kauj Ruam 6
Ntxiv rau qhov saum toj no, xyuam xim rau hom kev tua, kev pib kho tsheb feem ntau siv, tab sis cov koob yees duab niaj hnub tau nruab nrog lwm yam kev tua, nrog rau cov duab thaij sab nrauv, uas yog, rau kev tua koj tus kheej.
