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Differenza Shutter/EV : GoPro Fotografia

Differenza Shutter/EV

Discussioni e usi creativi della fotografia con GoPro

Differenza Shutter/EV

Messaggioda lollo_169 » 12/10/2017, 15:25

Ciao a tutti ragazzi, stavo smanettando un po con la gp e leggendo parecchie cose e mi trovo di fronte a un dilemma. Ho letto che per fare foto notturne soprattutto, bisogna agire in particolare sull'esposizione(EV Comp) e sull'otturatore (shutter) se non vado errato. In che maniera di differenziano questi due parametri e perche quando leggo notizie sullo shutter spesso sono mostrate in secondi quindi ad esempio 20s, 30s ecc e altre volte 1/250, 1/20 ecc. ?
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Re: Differenza Shutter/EV

Messaggioda WestLele » 23/10/2017, 11:54

Shutter sarebbe quanto deve restare aperto l'otturatore mentre l'ev sarebbe la compensazione delle luci piu è alta e la luminosità delle luci nella foto sarà maggiore....ma in tutto questo dovrai ben equiparare i settaggi facendo delle prove all'inizio non ti verranno bene ma poi piano piano capirai


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Re: Differenza Shutter/EV

Messaggioda Mosfet » 23/10/2017, 13:56

L'EV non è la compensazione.
E' il modo insano per fare lavorare il sensore fuori specifiche andando a renderlo più sensibile se si sale in positivo ottenendo immagini più chiare oppure renderlo meno sensibile ottenendo immagini più scure. Questa seconda condizione è leggermente più sana della prima.
Per questo motivo è bene passare prima dallo shutter, che non esiste fisicamente, impostandolo correttamente.
I valori che vedi sono una forma intelligente per non scrivere valori con zero virgola tanti zeri quindi si usano le frazioni.
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poi metterò il secondo!
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