Ciao,ho estratto questo dal data sheet,spero possa aiutarti:
Adjustments for Long and Short ExposuresNo filter correction or exposure compensation is required
for PORTRA 160NC, 160VC, 400NC, 400VC, or 800 Films
for exposures from 1⁄10,000 second to 1 second. For
critical applications with longer exposure times, make tests
under your conditions
.....della serie,fino ad 1" nessun problema,oltre,arrangiati.
