Dab tsi yog aFisheye lens? Lub fisheye lens yog hom koob yees duab lub ntsiab uas yog tsim los tsim kom muaj qhov dav-lub ntsej muag pom ntawm ib qho scene, nrog lub cev muaj zog thiab muaj zog thiab sib txawv ntawm kev pom kev. Fisheye lo ntsiab muag tuaj yeem ntes qhov dav dav dav dav ntawm kev pom, ntau zaus txog 180 degrees lossis ntau dua, uas tso cai rau tus kws yees duab kom ntes ib thaj tsam loj heev ntawm qhov chaw.

Lub fisheye lens

Fisheye lo ntsiab muag tau muaj npe tom qab lawv cov kev cuam tshuam distortion, uas tsim ib daim duab sib txawv lossis lub thoob khib nyiab uas tuaj yeem yog qhov tseem ceeb thiab stylized. Lub distortion nyhuv nyas yog tshwm sim los ntawm txoj kev uas lub ntsiab muag rov ua kom lub teeb ua kom sov thaum nws dhau cov iav nkhaus ntawm lub lens. Cov nyhuv no tuaj yeem siv tau los ntawm cov kws thaij duab los tsim cov cim tshwj xeeb thiab zoo nkauj, tab sis nws tseem tuaj yeem yog ib qho kev txwv yog tias muaj kev xav tau cov duab ntau.

Fisheye lo ntsiab muag los rau ntau hom sib txawv, suav nrog cov plaub caug fishee lenses, cropped-voj fisheye lo ntsiab muag, thiab cov nqaij ntsa puv ntoob fisheye lo ntsiab muag. Txhua cov filleee lo lus qhia muaj nws tus kheej cov yam ntxwv tshwj xeeb thiab haum rau ntau hom kev yees duab.

Tsis zoo li resilinear lo ntsiab muag,Fisheye lo ntsiab muagyog tsis muaj tseeb ntawm focal ntev thiab aperture ib leeg. Lub kaum sab xis ntawm saib, duab dep, Projection hom, thiab sensor cov kev pab them nqi txhua tus sib txawv ntawm cov no.

Cov hom ntawm kev siv hom

Fisheye lo ntsiab muag

Thawj hom Filleye lo tau tsim yog "Vacular" lo ntsiab muag uas tuaj yeem tsim cov duab ncig nrog 180-degree teb. Lawv muaj luv luv focal ntev, feem ntau xws li los ntawm 7mm mus rau 10mm, uas ua rau lawv ntes qhov tsis tshua pom dav-kaum-lub kaum sab xis ntawm qhov chaw.

Khij Fisheye lens

Fisheye lo ntsiab muag yog tsim los tsim cov duab ncig ntawm lub koob yees duab lub sensor lossis zaj duab xis. Qhov no txhais tau tias cov duab tshwm sim muaj cov duab sib txawv nrog cov ciam teb ib puag ncig ntawm thaj chaw ncig, tsim ib qho tshwj xeeb "Fillowl" nyhuv. Cov ces kaum ntawm ib daim duab ntses Fisheye yuav muaj xim dub. Cov xim dub no txawv ntawm cov yaj me me ntawm cov txheej ci ntsa iab thiab teeb tsa ntawm sai. Cov duab ncig yuav tuaj yeem siv los tsim cov khoom nthuav thiab muaj tswv yim. Cov no muaj 180 ° Ntsug, kab rov tav thiab kab pheeb ces kaum ntawm saib. Tab sis nws tseem tuaj yeem yog qhov kev txwv yog tias tus kws yees duab xav tau cov duab plaub hau sib piv.

Voj voogFisheye lo ntsiab muagyog feem ntau yog siv nyob rau hauv kev muaj tswv yim thiab kos duab thaij duab, xws li hauv cov kws kos duab kos duab, paub daws teeb duab, thiab cov kev ua si tshaj plaws duab thaij duab. Lawv kuj tseem siv tau rau kev tshawb fawb thiab kev siv cov tswv yim uas xav txog qhov dav dav, xws li ua hnub qub lossis me me.

Kab pheeb ces kaum Fisheye lo ntsiab muag (aka puv-thav duab lossis duab plaub)

Raws li Fisheye lo ntsiab muag tau nrov npe hauv cov tuam txhab kev yees duab, cov cuab yeej tsim duab los ntawm cov duab ntsej muag nrog cov duab sib dhos. Lawv hu ua kab pheeb ces kaum, lossis qee zaum "plaub hau" lossis "puv-ncej", ntses.

Kab pheeb ces kaum fisheye lenses yog ib hom fisheye lens uas tuaj yeem tsim cov kab phev ntawm kev pom ntawm 180 txog 190 cov ces kaum thiab ntsug ntawm kev pom yuav me dua. Cov lenses tsim cov kev xav tau zoo thiab exaggerated lub zeem muag fishee lenses, lawv puv tag nrho cov duab plaub ntawm lub koob yees duab lossis yeeb yaj kiab lub dav hlau. Txhawm rau kom tau txais tib cov nyhuv ntawm digital cov koob yees duab nrog cov sensors me me, Focal Focal ntev yuav tsum muaj.

Lub distortion cuam tshuam ntawm kab pheeb ces kaumFisheye lensTsim ib qho tshwj xeeb thiab zoo heev saib uas tuaj yeem siv tau los ntawm cov kws thaij duab kom ntes cov duab zoo thiab qhov muag-ntes cov duab. Qhov kev pom zoo tshaj plaws tuaj yeem tsim kev nkag siab ntawm qhov tob thiab txav hauv qhov xwm txheej, thiab tseem siv tau los tsim cov ntawv paub daws teeb thiab muaj surreal.

Kab pheeb ces kaum Fisheye lens

Portrait lossis cropped-voj voog fisheye lo ntsiab muag

Cropped-VajvoogFisheye lo ntsiab muagPuas yog lwm hom fisheye lens uas muaj, ntxiv rau cov ntses ncig thiab cov ntses fisheye fisheye thiab cov ntsiab lus uas kuv tau hais ua ntej. Ib nrab ntawm kab pheeb ces kaum thiab ib daim duab ntses ncig thiab cov duab ncig ua kom zoo rau qhov dav ntawm cov yeeb yaj kiab ntawm zaj duab xis es tsis yog qhov siab. Raws li qhov tshwm sim, ntawm ib hom tsis yog-square duab yuav tau cog qoob loo rau sab saum toj thiab hauv qab, tab sis tseem qhia cov npoo sab laug ntawm sab laug thiab sab xis. Hom ntawv no hu ua "Portrait" fisheye.

Cropped-voj Fisheye Lens

Cov lenses no feem ntau muaj lub focal ntev ntawm ib ncig ntawm 10-13mm thiab thaj chaw ntawm pom ntawm kwv yees li ntawm 180 degrees ntawm cov qoob loo-sensor koob yees duab.

Cropped-voj Fisheye lo ntsiab muag tau yog ib qho kev pheej yig dua piv rau cov lenses puv ntoob, thiab lawv muab ib qho kev pom zoo nrog cov nyhuv sib txawv.

Tej yam me me Fisheye lo ntsiab muag

Tej yam me me digital koob yees duab, tshwj xeeb tshaj yog siv raws li cov koob yees duab kev ruaj ntseg, feem ntau yuav muaj fisheye lo ntsiab muag kom ua rau muaj kev fajseeb fisheye. Tej yam me me fisheye lo ntsiab muag, xws li M12 fisheye lo ntsiab muag thiab m8 fisheye lo lus qhia thiab yog tsim rau cov duab kev ruaj ntseg thiab cov duab muaj fisheye, yog tsim rau cov duab me me, yog tsim rau cov duab me me, yog tsim rau cov duab me me, yog tsim rau cov duab me me, yog tsim rau cov duab me me, yog tsim rau cov duab me me, yog tsim rau cov duab me me thiab yog 1/3 ", thiab 1/2" Cov. Ua raws li thaj tsam ntawm cov duab sensor, tib lub lens tuaj yeem tsim cov duab ncig ntawm cov duab loj dua (piv txwv li ntawm ib qho me dua (piv txwv li 1/4 ").

Qauv duab ntes los ntawm Chancctv's M12Fisheye lo ntsiab muag:

Qauv Duab ntes los ntawm Chanancctv's M12 Fisheye locees-01

Qauv duab ntes los ntawm Chanancctv's M12 Fisheye locees-02

Qauv Duab ntes los ntawm Chanancctv's M12 Fisheye locees-03