ACES SMPTE ST 2065-2

SMPTE ST 2065-2 is a standard for reference printing density defined by the AMPAS for calibrating film scanners and film recorders. – Printing Density: how a film print “sees” the light that comes through a negative from a printer lamp house – Academy Printing Density (APD): a scanner calibration standard that defines the “spectral responsivities” – Defines a 10-bit encoding for compatibility – Defines a 16-bit integer encoding to handle extended film negative ranges