HDR Communication & Documentation 2

Question 1

When documenting an HDR project for a client handoff, which metadata standard is most commonly used to embed display mastering information?

Accepted Answer

SMPTE ST 2086

Answer

SMPTE ST 2086 defines the mastering display color volume metadata (MaxCLL, MaxFALL, primaries) used in HDR handoffs.

Question 2

A colorist sends a QC report noting 'clipping above 1000 nits on highlight elements.' Which corrective action should be communicated back first?

Accepted Answer

Apply a roll-off or highlight compression to affected shots

Answer

Highlight clipping requires applying a roll-off or compression to bring peak values within the mastered ceiling before re-QC.

Question 3

In an HDR delivery specification document, MaxFALL stands for:

Accepted Answer

Maximum Frame Average Light Level

Answer

MaxFALL (Maximum Frame Average Light Level) is the average of all pixels across all frames, expressed in cd/m².

Question 4

Which document type is typically used to communicate agreed-upon HDR tone mapping decisions between a studio and a streaming platform?

Accepted Answer

Technical Specification Agreement (TSA)

Answer

A Technical Specification Agreement captures mutually approved parameters like target peak nits, tone mapping approach, and metadata values.

Question 5

A delivery note specifies 'PQ 1000-nit master, with a 600-nit HLG trim pass.' What does the trim pass communicate?

Accepted Answer

A secondary grade was created to optimize the content for lower-peak HLG displays

Answer

A trim pass is a secondary color grade that optimizes the appearance of HDR content for a different display target, here 600-nit HLG broadcast.

(HDR) High Dynamic Range Certification Practice Test