Dab tsi yog qhov opposite ntawm lub lens fisheye?
Dab tsi yog qhov opposite ntawm lub lens fisheye?

Video: Dab tsi yog qhov opposite ntawm lub lens fisheye?

Video: Dab tsi yog qhov opposite ntawm lub lens fisheye?
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Cov opposite ntawm ib tug fisheye yog rectilinear lens.

Distortion ntawm a fisheye lo ntsiab muag tsis yog barreldistortion, nws yog qhov sib txawv projection los yog daim ntawv qhia yog tau los ntawm kev tsim. Lub kaum sab xis feem ntau khaws cia tab sis tsis ncaj, tshwj tsis yog tias lawv dhau los ntawm qhov nruab nrab ntawm cov ncej.

Yog li ntawd, lub lens fisheye yog dab tsi zoo rau?

A fisheye lens yog ultra wide-angle lens uas ua rau muaj zog pom kev tsis sib haum xeeb npaj los tsim cov duab dav dav lossis hemispherical. Cov khoom tsim tawm ntses qhov muag rau kev yees duab thawj zaug tshwm sim nyob rau hauv thaum ntxov 1960s thiab feem ntau yog siv rau lawv cov cim, distorted tsos.

Tsis tas li ntawd, qhov txawv ntawm lub kaum sab xis dav yog dab tsi? Los ntawm kev sib piv, dav - lub kaum sab xis yog cov rov qab ntawm telephoto.

Dab tsi yog suav tias yog lub lens fisheye?

A fisheye lens yog tsim los rau kev tua ntau qhov dav, feem ntau yog 180 degrees. Lawv nyiam nyob rau hauv toj roob hauv pes, kev ua kis las, thiab kev yees duab kos duab. A fisheye lens , kuj hu ua "ultra wide" los yog "super wide" lens , yog hom wideangle lens uas tuaj yeem ntes cov duab dav dav, feem ntau nyob ib ncig ntawm 180 degrees.

Dab tsi yog diagonal fisheye lens?

Ntawm qhov tod tes, a kab pheeb ces kaum effectcaptures kwv yees li 180-degree kab pheeb ces kaum kaum-ntawm-saib thiab pom zoo distorted pom ntawm daim duab periphery. Cov nyhuv no tseem hu ua full-frame nuv ntses ” cov nyhuv vim tias cov duab tshwm sim npog tag nrho cov ncej.

Pom zoo: