UbuchwephesheElectronics

Exposure ikhamera

Noma yimuphi umthwebuli sifisa kufanele wazi ukuthi yesivalo isivinini ikhamera, njengoba lesi sici kuthinta ikhwalithi yesithombe. Lokhu esiningiliziwe esihlokweni.

Yini ngcaphuno

Kuyaziwa ukuthi isithombe etholwe umphumela ukukhanya oku matrix ikhamera. Amasango lapho ukukhanya kungena matrix, kuyinto wawo wokuvula yesivalo nokuvala sibonga inkinobho yokucina. Isikhathi okuyiwona ivuliwe, futhi ubizwa ngokuthi ukuchayeka. Ukushintsha inani layo, ungalungisa umthamo wokukhanya ukuthi ifinyelela matrix ikhamera.

izindawo noma kakhulu Anombala noma elimhlophe Ngokuvamile izithombe etholwe yilezo ngenxa yokuthi ukuthi yesivalo we khamera zivezwe kabi. Khanyisa, uma kakhulu, ishisa ku array amaphikiseli, futhi ukuntula kwayo amaqabunga ekukhanyeni black. Ikhwalithi yesithombe kuncike ijubane yokucina. Ukuze idlulisele umphumela ukufiphala amanzi, ungakhetha isivinini yokushutha 1 yesibili futhi kuze kube ingunaphakade.

Canon Amakhamera

electronics Digital for bezithombe emelelwa amaqembu amabili: okubizwa ngokuthi "Insipho" eziningi ezahlukahlukene abalandeli, futhi "SLR" amakhamera for ochwepheshe. Canon - brand adumile waziphatha ukukhiqizwa electronics for ekhaya kanye nehhovisi, kuhlanganise izithombe. izici Technical we amakhamera, yebo, ziyahlukahluka. Ngakho, Canon isivinini ikhamera yesivalo can kube imizuzwana 1/500.

Kunezindlela ezimbili ukudala izithombe kwezobuciko. Ukuze wenze lokhu, kukhona izindlela ezimbili: Imbobo Priority (AV) kanye Ukuvala Priority (TV). Ukukhethwa yesivalo yokuqala ikhamera isethwe ngokuzenzakalelayo. Lokhu kufanelekile ekumeni sokudubula, Macro futhi yimuphi izinhlobo izithombe. Ngo kwathatha Priority Ukuvala (TV), ungakhetha inani layo, futhi beso akhethwe ikhamera. Le modi ikuvumela ukuba alobe ezinyakazayo in the ifremu.

Ngaphezu izimfanelo undoubted omuhle Canon imikhiqizo, has izinkinga zalo, enye yazo exposure imodi eside isetshenziswa nge-flash-AV, okuholela izithombe ezimnyama. Kubalulekile kakhulu ngaphambi kokusebenzisa ikhamera ukuba ufunde imiyalelo ngokucophelela. Zishintshe "reflex" imodi ngokuthi "beso igunya» (AV) iziphatha ngendlela ehlukile. Kwamanye onobuhle abanalo izikhalazo, kanye nezinye njalo ithola izikhalazo.

Canon ikhamera uma usebenzisa i-flash egumbini elimnyama, okwenza izithombe ezilufifi ngenxa slow isivinini yokucina. Kuqhamuka yokuthi Phiko e yayo, hhayi kucatshangelwa khona flash. Ukuze izakhiwo, njengoba umthetho, isethwe yesivalo kancane -1/15 imizuzwana. Ngesikhathi esifanayo izinga izithombe kuthintwa ijubane yesivalo ikhamera bese flash ingxenye incane.

Ngokusho imiyalelo ikhamera kumele ogibele tripod. Kodwa empeleni, ukuvivinya umzimba akuyona into njalo kungenzeka. Ikakhulukazi lapho isihloko enezithombe siyahamba. Ngakho, ikhamera yesivalo yesivinini 1/15 yomzuzwana wokubamba abantu isikhathi eside kakhulu.

Le modi ubizwa ngokuthi "Ukuvumelanisa kancane". It "SLR» Canon ingena AV mode, ukulungiselelwa endaweni yokukhanda. Kodwa uma udala isifinyezo, lo mphumela isikhathi akusebenzi. Indlela yokugwema ukufakwa okuzenzakalelayo "Ukuvumelanisa kancane"? Omunye ikhambi lenkinga kungaba isikhalo izilungiselelo lapho kuyadingeka ukuba ubheke inkinobho flash futhi adalule isikhundla sakhe 1/200. Kodwa ukuchayeka of ikhamera uma akwanele ukudala izithombe eliphezulu, ngoba akukho ukukhanya okwanele. Ngakho, ukugwema ngomshado isithombe, kubalulekile ukuba banakekele ezengeziwe ukukhanyisa emagcekeni noma ukukhetha phezu imodi yekhamera M. Kulokhu, owanquma isivinini yesivalo akuyona isikhathi eside kakhulu futhi asifinyeziwe. Lokhu kuzosiza ugweme izithombe bungacaci amnyama ngemuva.

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