A lub lens qhov muag ntsesyog ib hom lens dav dav tshwj xeeb uas tsim los nrog lub voj voog spherical uas zoo li lub lens spherical crystalline ntawm lub qhov muag ntses thiab lub dav hlau duab nyob ze rau cov ntsiab lus lens, ua raws li qhov luv luv ntawm lub lens ntses thiab nws lub retina.
Cov iav Fisheye muaj qhov pom kev uas tuaj yeem mus txog lossis tshaj 180 degrees. Vim yog qhov pom kev loj heev, qhov kev cuam tshuam kuj loj heev. Feem ntau, cov kab ncaj nraim nyob ib puag ncig ntug ntawm daim duab yuav raug khoov, thaum tsuas yog cov kab ncaj nraim hauv nruab nrab ntawm lub lens tuaj yeem khaws lawv lub xeev qub.
Lub hauv paus ntsiab lus thiab kev ua haujlwm ntawm lub lens fisheye
Cov tsom iav Fisheye ua tiav lawv cov txiaj ntsig tshwj xeeb los ntawm kev siv qhov ntev focal luv heev thiab cov ntsiab lus lens nkhaus heev. Nws feem ntau muaj ntau lub lens, txhua lub muaj qhov nkhaus loj, uas tso cai rau lub teeb nkag los ntawm ntau lub kaum sab xis thiab raug tso tawm rau ntawm zaj duab xis lossis lub sensor duab.
Vim tias lawv ntes tau ib thaj chaw pom uas tshaj qhov muag tib neeg pom, cov iav fisheye tuaj yeem nthuav dav qhov pom ntawm ib qho chaw.
Lub hauv paus ntsiab lus thiab kev ua haujlwm ntawm lub lens fisheye
Lub luag haujlwm loj tshaj plaws ntawm lub lens fisheye yog nws qhov pom dav, feem ntau ncav cuag 220° lossis 230°, uas tso cai rau kev thaij duab ze ntawm cov xwm txheej loj.
Thaum thaij duab ze ntawm tus neeg uas thaij duab, lub lens fisheye tuaj yeem tsim kom muaj qhov pom kev zoo heev, ua rau pom qhov sib txawv ntawm cov khoom ze thiab cov khoom deb, ua rau daim duab uas thaij tau muaj zog thiab txav mus los.
Cov tsom iav Fisheye kuj muaj qhov tob ntawm daim teb ntau heev, uas yog qhov zoo rau kev qhia txog qhov cuam tshuam ntawm qhov tob ntawm daim teb ntev hauv cov duab.
Cov iav Fisheye tsim ob hom duab: ib qho uas puv tag nrho lub thav duab—ib yam li cov iav txheem—thiab lwm qhov uas tshwm sim ua lub voj voog.
Txawm yog siv txoj kev thaij duab li cas los xij, cov duab uas thaij nrog lub lens fisheye muaj qhov tsis zoo thiab muaj kev sib tshuam zoo heev.
Yog li ntawd, lawv feem ntau siv rau cov teebmeem tshwj xeeb; piv txwv li, ib sab caj npab uas txuas mus rau lub lens yuav tshwm sim ob npaug ntawm nws qhov ntev tiag tiag.
Cov iav qhov muag ntsesmuaj ntau yam siv. Vim lawv qhov pom dav, lawv tuaj yeem ntes tau ntau qhov xwm txheej thiab hloov kho rau kev xav tau thaij duab hauv ntau qhov chaw nqaim.
Nrog rau kev nrov ntawm digitalization, fisheye lens tau ua rau nws yooj yim heev los ua kom pom 360 ° puag ncig, thiab lawv kuj yooj yim dua rau siv dua li cov lens ib txwm muaj.
Cov yam ntxwv ntawm kev thaij duab ntawm cov iav fisheye
Yuav tsum nco ntsoov tias txawm hais tias cov iav fisheye muaj qhov zoo dua hauv kev nthuav dav qhov pom kev, lawv kuj coj qee qhov teeb meem. Piv txwv li, nws pom tseeb tias muaj kev cuam tshuam ntawm ntug ntawm daim duab, thiab qhov cuam tshuam kev cuam tshuam yuav tsis haum rau cov duab ntawm qhov chaw tiag tiag.
Yog li ntawd, thaum siv lub lens fisheye rau kev thaij duab lossis videography, ib tug yuav tsum ua tib zoo tswj kev siv qhov tshwj xeeb no kom ua tiav qhov zoo ntawm daim duab.
Cov lus qhia rauuhu nkaujfisheyelcov enses
Tseem muaj qee txoj kev uas yuav tsum nco ntsoov thaum siv lub lens fisheye:
1.Ua tib zoo saib qhov deb ntawm kev tua
Kev tua phom ze ze ua rau pom qhov cuam tshuam ntawm kev cuam tshuam ntawm alub lens qhov muag ntses—thaum koj nyob ze, qhov cuam tshuam yuav pom tseeb dua; kev tua ntawm qhov deb ib txwm ua tsis tau qhov zoo li ntawd.
Hauv kev thaij duab portrait, kev mus ze ze ua rau muaj qhov "big-head" (lossis "bobblehead") uas pom tseeb dua. Dhau li ntawm cov duab ntawm tib neeg lossis tsiaj, cov txheej txheem no kuj tseem siv tau rau kev thaij duab still-life kom ntxiv kev lom zem.
2.Ceev faj kom nws nyob theem
Qhov no tseem ceeb heev thaum thaij duab toj roob hauv pes, vim tias qhov kev cuam tshuam uas muaj nyob hauv cov iav fisheye ua rau nws nyuaj rau txiav txim siab qhov sib phim ntawm lub qhov muag, uas yuav tsum tau ceev faj ntxiv. Yog tias daim duab tsis raug thaij ntawm qhov chaw tiaj tus, qhov cuam tshuam ntawm qhov tsis sib npaug yuav pom tseeb heev.
Tsis tas li ntawd xwb, thaum thaij duab cov tsev siab siab, kev thaij duab los ntawm lub kaum qis saib mus rau saum ntuj yog ib txoj kev siv ntau; qhov no tso cai rau koj thaij tau tag nrho lub tsev hauv daim duab, tsim kom muaj ib daim duab zoo nkauj dua.
Cov iav Fisheye siv tau los thaij cov tsev los ntawm lub kaum sab qis
3.Ua kom pom tseeb txog qhov tseem ceeb ntawm zaj lus
Qhov nruab nrab ntawm lub lens fisheye ntes tau qhov kaj tshaj plaws thiab ntse tshaj plaws ntawm daim duab; yog li ntawd, txhawm rau kom pom qhov fisheye effect, koj yuav tsum tso koj tus neeg kom ze rau nruab nrab li sai tau.
Thaum koj teeb tsa daim duab, sim ua kom pom tseeb txog lub ntsiab lus tseem ceeb thiab tsis txhob muab ntau yam khoom tso rau hauv daim duab. Kev teeb tsa uas tsis zoo yuav ua rau pom tsis meej, ua rau lub ntsiab lus tsis meej thiab ua rau daim duab tsis pom qhov tseem ceeb.
Tsis tas li ntawd xwb, vim tias cov iav fisheye ua rau cov ntsiab lus tsis meej - tshwj xeeb tshaj yog hauv kev thaij duab portrait - koj tuaj yeem coj koj tus neeg mus rau cov qauv tshwj xeeb kom ua rau pom qhov cuam tshuam ntxiv.
4.Yuav tsum ceev faj txog kev cuam tshuam
Cov iav qhov muag ntsesua kom cov duab ntawm ntug ntawm tus ncej tsis zoo. Thaum thaij duab neeg, tus neeg yuav tsum tso ze rau nruab nrab ntawm tus ncej li sai tau, tsis txhob tso rau ntawm ib sab, txwv tsis pub nws yuav tsis zoo li tib neeg.
Yog li ntawd, thaum thaij duab nrog lub lens fisheye, tus neeg yuav tsum tso rau hauv nruab nrab ntawm daim duab; txwv tsis pub, qhov kev cuam tshuam yuav tshwm sim. Piv txwv li, yog tias tus neeg tso rau ob sab ntawm daim duab, lawv lub cev yuav tsis sib npaug.
Tsis txhob muaj kev cuam tshuam thaum thaij duab nrog lub lens fisheye
5.Ua tib zoo saib rau pem hauv ntej thiab tom qab
Vim tias cov iav fisheye thaij tau ob qho tib si dav dav, koj yuav tsum tau sib npaug thaum koj teeb tsa koj daim duab. Sim tso cov khoom nthuav pem hauv ntej ze rau lub koob yees duab thiab xyuas kom meej tias cov khoom keeb kwm yav dhau los kuj zoo nkauj.
6.Ua tib zoo saib xyuas kev ua tiav tom qab
Cov teebmeem ntawm kev hloov pauv thiab kev hloov pauv ntawm ib qholub lens qhov muag ntsestej zaum yuav xav tau kev kho thaum lub sijhawm ua tiav. Kev siv software kho duab tso cai rau koj kho qhov kev cuam tshuam lossis txiav daim duab kom ua tiav qhov tshwm sim zoo dua.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-06-2026
