Calcolo della profondità di campo

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Al fine di calcolare la profondità di campo, bisogna prima di tutto decidere la dimensione del “Circolo di Confusione”, ovvero la minima granularità alla quale si vuole potere ancora distinguere i particolari. Il Circolo di Confusione è basato sulla dimensione del sensore, la distanza del soggetto o comunque di ciò che vogliamo fotografare (orientativa) e la dimensione della stampa che realizzeremo (Attenzione che all’aumentare dalla distanza dai nostri occhi, questi ultimi saranno capaci di percepire meno dettagli nella stampa). Sono inoltre richiesti il modello di macchina fotografica in uso (o meglio del sensore che la equipaggia, quest’ultimo è direttamente legato al fatto di ingrandimento necessario per adattare un’immagine alle dimensioni di stampa) nonché la lunghezza focale (quella relativa alla macchina in uso, non moltiplicatela per il fattore di crop!) e la distanza iperfocale.

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