Thaum xaiv cov koob yees duab digital, nws yog qhov nyuaj rau cov neeg yuav khoom los nrhiav, vim tias cov khoom siv ntawm cov khoom sib txawv thiab cov neeg siv khoom muaj cov yam ntxwv sib xws. Yuav ua li cas xaiv qhov pheej yig tab sis zoo lub koob yees duab?
Cov Lus Qhia
Kauj ruam 1
Kwv yees kev daws teeb meem ntawm lub koob yees duab matrix (megapixels). Raws li txoj cai, qhov no yog tus cwj pwm tseem ceeb uas tib neeg mloog thaum xaiv cov cuab yeej. Nws tsis cuam tshuam rau cov duab zoo, tab sis qhov ntau tshaj ntawm daim duab loj uas koj tuaj yeem luam tawm yam tsis muaj kev pom zoo. Yog tias koj tua rau koj tus kheej thiab cia siab tias yuav muaj cov duab zoo, 3-4 megapixels yuav txaus siab rau koj cov kev xav tau. Thiab rau kev tua cov duab toj roob hauv pes, lub koob yees duab nrog 1.5-2 megapixels yuav muaj txaus.
Kauj ruam 2
Them nyiaj rau ib qho ntawm cov cwj pwm tseem ceeb ntawm lub koob yees duab - optics. Tam sim no focal ntev lo ntsiab muag yog tam sim no muaj nyob rau hauv qis-kawg koob yees duab. Cov koob yees duab kim dua tau ua lub hauv paus loj uas tso cai rau koj los kho lub ntsej muag ntev.
Kauj ruam 3
Nug txog cov kev txwv ntawm lub zog ntawm lub koob yees duab. Cov cwj pwm no tsis cuam tshuam rau cov duab zoo, tab sis lawv yog qhov tseem ceeb rau kev siv tau ntawm lub cuab yeej. Cov zaub mov xa tuaj tsis muaj ntau yam sib txawv. Qee lub koob yees duab yog tsim los ntawm cov khoom lag luam kim kim lithium hlwb, thaum cov nqis pheej yig dua siv cov ntiv tes siv hlwb.
Kauj ruam 4
Qhov nyuaj tshaj plaws rau kev ntsuam xyuas yog qhov zoo ntawm cov khoom siv hluav taws xob hauv lub koob yees duab digital. Txog kev ua ntau dhau ntawm cov haujlwm, JPEG hom yog haum, nyob rau hauv uas yuav luag txhua lub koob yees duab tuaj yeem txuag cov ntaub ntawv. Yog tias lub koob yees duab txhawb nqa hom TIFF, qhov no yog ib qho laj thawj rau kev xaiv xws li lub koob yees duab. Kev them nyiaj yug ntawm hom ntawv no ua tim khawv rau qhov kev ua tau zoo ntawm software thiab khoom siv hluav taws xob ntawm lub cuab yeej.
Kauj ruam 5
Thaum xaiv lub koob yees duab, xyuam xim rau cov npe ntawm cov phiaj xwm kis, thiab tsis yog rau qhov tshaj tawm zoo tshaj ntawm kev txiav txim siab raug. Qee cov koob yees duab muaj lub luag haujlwm los tswj qhov teeb meem raug.
Kauj Ruam 6
Feem ntau, qhov kev sib piv cov koob yees duab pheej yig digital yog qhov nyuaj rau xaiv raws li tsuas yog saib cov cuab yeej ua haujlwm. Txoj hauv kev zoo tshaj plaws los xaiv yog los sib piv thiab tsis pom kev soj ntsuam cov duab coj los siv nrog cov khoom sib txawv thiab kawm cov lus pom zoo los ntawm cov neeg siv khoom dhau los.
