Fotograferingsbegrepp

Hur bländarinställning, slutarhastighet och ISO-känslighet kontrollerar exponeringen

Inställning för bländare, slutarhastighet och ISO-känslighet har ett nära samband inom fotografering. Bländarinställningen kontrollerar öppningen som reglerar ljuset som går in i kameran, medan slutarhastigheten bestämmer tiden som ljuset släpps in. ISO-känslighet avgör hastigheten som kameran reagerar på ljus. Tillsammans beskrivs dessa tre aspekter som exponeringstriangeln.

En förändring av slutarhastighet, bländarvärde eller ISO-känslighet kan kompenseras genom justeringar av de andra för att behålla rätt ljusmängd. Resultaten ändras emellertid enligt inställningarna. Till exempel används slutarhastigheten för att uttrycka rörelse, bländaren kan kontrollera skärpedjupet och ISO-känsligheten kan kontrollera fotots kornighet.

Bländare

Inställningar

Resultat

 

 

Stor bländare = mer ljus Liten bländare = mindre ljus

Bred = litet skärpedjup

Smal = stort skärpedjup

Inställningar

Resultat

 

 

ISO-känslighet

Hög känslighet = mer ljuskänslig Låg känslighet

= mindre ljuskänslig

Slutarhastighet

Snabb hastighet

=mindre ljus Långsam hastighet

=mer ljus

Hög = mer kornigt Låg = mindre kornigt

Snabb = stilla Långsam = suddig

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Samsung EV-NX100ZBABSE, EV-NX100ZBABDE, EV-NX100ZBAWDK, EV-NX100ZBABDK, EV-NX100ZBAWSE, EV-NX100ZBBBSE manual ISO-känslighet

EV-NX100ZBABSE, EV-NX100ZBAWSE, EV-NX100ZBABDK, EV-NX100ZBBBSE, EV-NX100ZBAWDK specifications

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