Koj puas tau thaij duab uas cov kab ncaj hneev tawm thiab ua nkhaus ntawm ntug ntawm tus ncej? Tom qab ntawd koj yuav tsum kawm yuav ua li cas kho lub lens chim distortion hauv kev yees duab, uas yog ib qho teeb meem tshwm sim thaum siv lub lens wide-angle.
Thaum cov nyhuv no tuaj yeem txaus siab rau qee qhov xwm txheej - xws li nrog cov duab kos duab qhia ntawm no - muaj ntau zaus koj yuav xav zam nws thiab muaj cov kab zoo. Qhov no yog qhov tseeb tshwj xeeb thaum sau ib lub tsev, thiab koj xav tau cov kab ntawm cov architecture kom ncaj raws li lawv nyob hauv lub neej tiag tiag.
Cov xov xwm zoo yog qhov kev hloov pauv ntawm lub lens tuaj yeem kho tau, tab sis ua ntej, nws yog qhov tseem ceeb kom nkag siab tias vim li cas nws tshwm sim.
Tshwj xeeb Lens Distortion yog dab tsi?
Barrel lens distortion yog ib qho cuam tshuam nrog lub lens dav thiab, tshwj xeeb, zoom wide-angles.
Cov nyhuv no ua rau cov duab ua rau lub ntsej muag, uas txhais tau hais tias cov npoo ntawm daim duab zoo li nkhaus thiab hneev rau tib neeg lub qhov muag. Nws yuav luag zoo li cov duab duab tau qhwv ib ncig ntawm qhov chaw nkhaus. Nws pom tau ntau tshaj plaws hauv cov duab uas muaj kab ncaj nraim hauv lawv, raws li cov kab no tshwm sim rau hneev thiab nkhaus.
Barrel lens distortion tshwm sim vim qhov kev nthuav dav ntawm daim duab txo qis qhov deb ntawm cov khoom yog los ntawm optical axis ntawm lub lens. Lub ntsej muag dav dav suav nrog ntau daim iav uas nkhaus yog li cov feem ntawm cov duab uas nyob ntawm cov npoo ntawm tus ncej tuaj yeem ua skewed thiab yuav cuam tshuam qhov curvature.
Qee lo ntsiab muag, xws li cov lo ntsiab muag fisheye, sim coj kom zoo dua ntawm lub lens chim distortion los ntawm kev tsim ib lub hom phiaj nkhaus duab. Nws yog ib tug stunning nyhuv thaum siv rau txoj cai lub hom phiaj thiab nrog txoj cai hom kev kawm. Qee lub ntsej muag lub ntsej muag yog qhov hnyav heev uas qhov kev yees duab xaus rau hauv cov duab, ntau dua li cov duab plaub ib txwm muaj ntau dua.
Yuav ua li cas kho lub qhov txhab Lens Distortion
Barrel distortion tuaj yeem kho tau yooj yim hauv cov duab kho tshiab niaj hnub xws li Adobe Photoshop, uas muaj lub lens distortion kho lim. Ntau qhov kev pab cuam kho duab pub dawb kuj suav nrog kev daws teeb meem.
Raws li kev tsis sib haum xeeb yog tshwm sim los ntawm qhov cuam tshuam ntawm kev pom ntawm lub lens, tib txoj hauv kev los kho lub fwj lo ntsiab muag distortion hauv-lub koob yees duab yog siv lub lens tshwj xeeb "tilt thiab hloov", uas yog tsim los rau kev tsim vaj tsev. Txawm li cas los xij, cov lo ntsiab muag no kim heev, thiab tsuas yog ua kom nkag siab yog tias koj tshwj xeeb hauv daim teb no.
Yog tias koj tsis tuaj yeem tiv thaiv lub ntsej muag lens distortion nrog lub lens tshwj xeeb lossis yog tias koj tsis xav ua ntau qhov kev kho tom qab qhov tseeb, koj tuaj yeem sim txo qhov cuam tshuam ntawm lub lens distortion thaum thaij duab.
- sim kom tsis txhob tua cov tuam tsev lossis lwm yam khoomuas muaj cov kab huv si, qhov ncaj, qhov twg lub chim distortion yuav pom tseeb. Yam tsawg kawg sim kom tsis txhob tua lawv nrog lub lens dav dav. Thaub qab yog tias koj xav tau ntau yam ntawm cov ntsiab lus rau hauv daim duab.
- Kua kab ncaj nraim hauv daim duab kom ze rau qhov nruab nrab ntawm lub lens li sai tau. Yuav muaj kev cuam tshuam tsawg dua mus rau nruab nrab dua li ntawm ntug.
- Thaum koj tua ib yam khoom, thaij ob peb daim duab ntawm tib yam kev kawm, siv ntau yam zoom lens magnification theem. Qhov kev hloov pauv yuav zoo li tsis tshua pom tshwm sim ntawm ib qib zoom piv rau lwm qhov.
- Xaiv hom ntawv RAW kom koj tuaj yeem siv kev kho tsis siv neeg hauv cov haujlwm xws li Adobe Photoshop lossis Lightroom.
Kho lub lens chim distortion tsis yog qhov nyuaj npaum li nws suab ntev npaum li koj ua raws qee cov kauj ruam ntawm no. Tej zaum yuav muaj qee lub sij hawm uas koj tsis xav kho nws, yog li puag tus distortion! Thaum koj tsis tuaj yeem zam nws, mus nrog nws, thiab ua kom muaj txiaj ntsig zoo tshaj plaws. Lub curvature ntawm cov kab tuaj yeem txhim kho kom tsim tau qhov zoo ntawm koj daim duab.
FAQ
Lub lim twg kho lub koob yees duab lens flaws, xws li chim thiab pincushion distortion?
Nrog Lens Correction lim hauv Adobe Photoshop, koj tuaj yeem kho cov duab distortion tau los yog manually. Kev kho tsis siv neeg siv lub koob yees duab lub neej ntawd profile, thaum kev kho phau ntawv xav kom koj nkag mus rau koj lub koob yees duab tshwj xeeb. Cov cuab yeej kho Lens zoo sib xws muaj nyob hauv Adobe Lightroom.
pincushion distortion hauv kev yees duab yog dab tsi?
Pincushion distortion yog qhov ntxeev ntawm lub qhov muag lens distortion. Hloov cov kab sib npaug mus rau cov npoo ntawm cov duab, muaj cov nyhuv pinch hauv nruab nrab ntawm daim duab. Txhawm rau hloov kho qhov hloov pauv ntawm pincushion, siv Lens Correction lim hauv Adobe Photoshop lossis Lightroom. Pincushion distortion tshwm sim feem ntau nrog telephoto lo ntsiab muag.
