HDR Calibration & Display Measurement 2

Question 1

What is the primary advantage of a spectroradiometer over a colorimeter for HDR display calibration?

Accepted Answer

Spectroradiometers measure full spectral power distribution, eliminating filter metamerism errors

Answer

Spectroradiometers measure the complete spectrum of emitted light, avoiding metamerism errors that occur when colorimeter filters are mismatched to the spectral output of OLED or quantum dot displays.

Question 2

Which color gamut is the standard target for mastering HDR10 content?

Accepted Answer

Rec. 2020 (BT.2020)

Answer

HDR10 content is mastered to the Rec. 2020 (BT.2020) color gamut, which defines the wide color space for UHDTV and covers a significantly larger portion of the visible spectrum than sRGB.

Question 3

How frequently do professional post-production facilities typically calibrate their HDR mastering monitors?

Accepted Answer

At the start of each project or before critical color grading sessions

Answer

Industry best practice is to calibrate HDR mastering monitors at the start of each project or before critical color sessions to ensure consistently accurate reproduction.

Question 4

What is the D65 white point, and why is it critical in HDR display calibration?

Accepted Answer

A ~6,500K color temperature standard used as the reference white for video and broadcast

Answer

D65 is the standard illuminant with a correlated color temperature of approximately 6,500K, adopted as the reference white point for video, broadcast, and HDR content to ensure consistent color appearance.

Question 5

Which SMPTE standard defines the Perceptual Quantizer (PQ) electro-optical transfer function used in HDR10 and Dolby Vision?

Accepted Answer

SMPTE ST 2084

Answer

SMPTE ST 2084 defines the PQ (Perceptual Quantizer) transfer function, which maps code values to absolute luminance levels up to 10,000 cd/m² based on the limits of human visual perception.

(HDR) High Dynamic Range Certification Practice Test

(HDR) High Dynamic Range Certification Practice Test

HDR Calibration & Display Measurement 2