HPA Tech Retreat: A Look at HDR & the Ambient Light Issue
By Debra Kaufman
February 21, 2019
Sony Pictures chief technology officer Don Eklund presented a look at HDR bias light analysis. Put plainly, the colorist grades the content in a dark room, with the light behind the screen rated at between 5 and 10 nits. But the average viewer watches that same content in a room with windows and lights. “We have a fundamental problem everyone here has experienced, with light leaking in the room through drapes,” said Eklund. “It crushes the blacks and offers colors that were not intended when the images were graded.”