Ib lub lens zoom yog cov khoom sib dhos ntawm cov ntsiab lus ntawm lub lens uas qhov focal ntev tuaj yeem sib txawv, tsis zoo li lub lens focal ntev. Lub lens zoom tiag tiag, tseem hu ua lub lens parfocal, yog ib qho uas tswj kom pom tseeb thaum nws qhov focal ntev hloov.
Dab tsi yog qhov sib txawv ntawm qhov zoom thiab qhov muag zoom?
Dab tsi yog qhov sib txawv tseem ceeb? Hauv luv luv, nrog kho qhov muag zoom koj thawj zaug tau txais cov ntsiab lus ze ua ntej koj ntes nws. Nrog digital zoom, koj lub koob yees duab siv ib feem ntawm cov duab thiab tom qab ntawd coj nws mus rau qhov loj me. Nrog digital zoom, koj thiaj li muaj feem ntau ntawm kev poob zoo.
Puas yog qhov zoom zoom zoom zoom zoom?
Optical zoom thaum kawg zoo dua, raws li nws nthuav cov duab kom sau tag nrho cov duab sensor - hais, 10 megapixels tsim nyog. Digital zoom tsuas yog siv qhov chaw nruab nrab ntawm qhov lo ntsiab muag pov rau ntawm lub sensor, ntes tsawg dua pixels, hais tias 6MP.
Dab tsi yog qhov zoom txhais tau tias?
Optical zoom suav nrog lub koob yees duab lub cev lub cev txav, uas hloov qhov pom meej ze ntawm cov duab kev kawm los ntawm kev ua kom qhov ntev focal. Txhawm rau kom zoom, lub lens txav deb ntawm cov duab sensor, thiab qhov xwm txheej tau nthuav dav. Nws yog qhov tsim nyog los xav txog digital zoom li kev yees duab ua software tsim rau hauv koj lub koob yees duab.
3X optical zoom txhais li cas?
Yog lub koob yees duab muaj 3X, zoom, nws txhais tau tias tias qhov ntev tshaj plaws focal ntev yog 3 zaug qhov luv tshaj. Hauv kev sib tham tom ntej kuv siv 35-mmsib npaug focal lengths. Ntau lub koob yees duab digital muaj 3X zoom, nrog lub focal ntev li ntawm 35 hli mus rau 105 hli. … 35 hli yog lub kaum sab xis dav, thiab 105 hli yog lub koob yees duab me me.
