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BT.2100: Meaning & Definition in Film

The ITU-R recommendation defining HDR television formats and transfer functions.

  • 4 sections
  • 1 min read
  • Updated
On this page 4 sections

BT.2100 Explained

BT.2100: Overview

Rec. ITU-R BT.2100 is the international standard specifying HDR video formats, including both PQ and HLG transfer functions, wide gamut colorimetry (Rec.2020 primaries), and system color coding for broadcast and streaming.

BT.2100: Key Parameters

BT.2100 defines two EOTFs: PQ (SMPTE ST 2084) and HLG. It mandates Rec.2020 primaries and a 10-bit or higher bit depth. The standard covers metadata signaling for HDR10 and dynamic HDR formats.

BT.2100: Applications

Adopted by broadcast networks, OTT platforms, and display manufacturers, BT.2100 ensures interoperability across HDR workflows, from camera acquisition to end-user playback on HDR-capable TVs and monitors.

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More Filmmaking Terms

Entries filed on the same shelf as BT.2100, each with the one-line answer first. They are the words that usually come up in the same conversation.

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