Capture images as true-to-life as possible with HDR PQ , a gamma curve that displays a wide dynamic range close to human eye perception . The HDR PQ HEIF records 10-bit colour depth in a similar file size as a JPEG but delivers the visual impact of a wider dynamic range with little need for postprocessing . HDR PQ can be used in combination with Auto Lighting Optimizer and Highlight Tone Priority for additional gradation control .