Yuav Ua Li Cas Tshem Tawm Chromatic Aberration

Cov txheej txheem:

Yuav Ua Li Cas Tshem Tawm Chromatic Aberration
Yuav Ua Li Cas Tshem Tawm Chromatic Aberration

Video: Yuav Ua Li Cas Tshem Tawm Chromatic Aberration

Video: Yuav Ua Li Cas Tshem Tawm Chromatic Aberration
Video: When Good Lenses Go Bad - Chromatic Aberration - How to Test u0026 Fix 2024, Hlis ntuj nqeg
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Chromatic aberration yog qhov kho qhov muag tsis pom qhov twg los ntawm lub teeb uas dhau ntawm lub lens system yog qee cov rhuav tshem mus rau hauv cov txheej txheem spectral. Qhov no zoo heev rau duab thaum tsom kwm los ntawm kev tsom iav hauv tsev lossis tsom iav tsom. Tus kawm poob nws qhov tseeb thiab zoo nkaus li iridescent.

Yuav ua li cas tshem tawm chromatic aberration
Yuav ua li cas tshem tawm chromatic aberration

Nws yog qhov tsim nyog

  • - cov cuab yeej kho qhov muag nrog chromatic aberration;
  • - daim ntawv;
  • - txiab;
  • - txheej txheej lim;
  • - ntsuas ntsuas;
  • - achromatic lens.

Cov Lus Qhia

Kauj ruam 1

Saib xyuas cov khoom koj xav tau los ntawm lub teeb lim. Feem ntau, nyob rau hauv cov cuab yeej siv kho qhov muag muaj qhov yooj yim loj-txoj kab uas hla teeb. Txhawm rau tshem tawm ntawm qhov tsis xws luag, nws yog qhov yuav tsum tau nqaim qhov ntau ntawm cov xim. Siv ZhS17 lossis ZhS12 lub teeb lim rau qhov no. Lawv tuaj yeem coj los ntawm photosets. Lawv yog daj hauv lub teeb. Tso lawv mus rau sab xub ntiag ntawm lub lens lossis tom qab qhov muag pom. Qhov kev xaiv thawj yog qhov zoo dua, tab sis nws nyob ntawm qhov loj me ntawm lub taub lim thiab lo ntsiab muag. Daim duab yuav coj ua rau lub ntsej muag daj, tab sis yuav dhau mus ua qhov muag. Txoj kev no, koj tuaj yeem saib cov khoom ci ci - piv txwv, lub hli.

Kauj ruam 2

Txo cov kwv tij qhov ntsuas ntawm lub ntsuas qhov ntsuas. Qhov tseeb yog tias qhov loj dua lub lens lub cev, lub ntau dua chromatic aberration. Tab sis muaj qee qhov sib piv ntawm lub lens lens thiab lub focal ntev, ntawm qhov uas nws tsis tshua pom. Txiav lub voj voog tawm ntawm cov duab los qhia uas yog lub taub tib yam li sab hauv qhov taub ntawm koj cov khoom lag luam lossis tsom iav. Hauv nruab nrab ntawm nws, ua lub qhov puag ncig nrog lub taub 1.5-2 npaug me dua li ntawm txoj kab ntawm lub lens. Pleev qhov txiaj ntsig diaphragm dub. Tso nws sab hauv lub raj kom nrug deb ntawm lub lens. Saib xyuas los ntawm cov khoom siv kho qhov muag, xaiv xws li qhov kev ncua deb ntawm lub voj voog mus rau lub lens, ntawm qhov kev rho tawm yuav tsawg heev. Koj tuaj yeem sim nrog lub cheeb ntawm lub qhov qhib. Ntawm no nws yog qhov yuav tsum tau coj mus rau hauv tus account tias qhov deb dua los ntawm lub lens ntawm lub aperture yog, qhov me dua ntawm txoj kab uas hla ntawm lub qhov yuav tsum yog.

Kauj ruam 3

Txoj hauv kev tshaj tawm rau tshwj xeeb rau kev tiv thaiv chromatic aberration yog siv cov lo ntsiab muag achromatic. Qhov yooj yim, xws li lub lens muaj ob lo ntsiab muag ua los ntawm ntau hom iav. Qhov ntsuas tsis yooj yim ntawm ntau cov teeb meem sib txawv ntawm lub teeb tau rov qab rau lawv, thiab tag nrho cov focal ntev tau sib haum rau qhov uas yuav tsum tau muaj nyob rau hauv cov khoom siv kho qhov muag. Xws li cov lo ntsiab muag pom nyob hauv cov koob yees duab tsom iav, tsom iav, theodolites thiab lub koob yees duab kws tshaj lij. Sim siv lub lens telephoto nrog lub ntsej muag ntev ntev siv koj lub lens lens. Chromatic aberration hauv xws li cov khoom siv yuav tsum xyaum tsis txhob hnov mob.

Kauj ruam 4

Yog tias ua tau, hloov lub lens kho qhov muag nrog ib tsom iav. Lawv siv nyob rau hauv cov cuab yeej zoo tshaj lij astronomical. Yog tias koj hla MTO lub koob yees duab duab, sim ua lub tsom iav raws nws. Ua li no, koj tsuas yog xav tau ntxiv qhov muag rau nws. Cov lo ntsiab muag no muaj ntau heev nyob rau hauv cov khw muag khoom thrift. Nws tsuas yog siv tsom iav-lens system. Lub cuab yeej yuav muab pub dawb los ntawm txhua hom kev ntxub ntxaug.

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