Virtual White Calibration

"Pixar’s Rob Bogart and Rick Sayer discovered that digital projectors calibrated to the DC28 (Digital Cinema Initiative) spec clipped certain colors in “Cars”, and found that the gamut attached to the DC28 reference white point didn’t accommodate films timed to D65 or D55 white points. They offered Virtual White calibration as the solution—an expanded gamut that encompasses all three white points and includes most of the colors encoded in most of the DCI Distribution packages (DCPs, the “release prints” of digital cinema), which, surprisingly, the DC28 projector gamut does not do nearly so well. Sony have already modified their SXRD projectors for Virtual White, and other projector suppliers are following suit."

By Adam Wilt, ProVideo Coalition