---
title: "SDR (Standard Dynamic Range)"
url: https://postproduction.studio/en/glossary/sdr-standard-dynamic-range
language: en
description: "SDR (Standard Dynamic Range) is the historical and still-dominant video specification, defined by Rec.709 for HD and Rec.601 for SD, with peak luminance..."
updated: 2026-10-25
---

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# SDR (Standard Dynamic Range)

SDR (Standard Dynamic Range) is the historical and still-dominant video specification, defined by Rec.709 for HD and Rec.601 for SD, with peak luminance assumed at 100 nits, gamma 2.4 transfer function (BT.1886), and Rec.709 color primaries. SDR predates the HDR era and remains the delivery target for the vast majority of streaming, broadcast and physical media — Netflix's standard tier, YouTube's default playback, all broadcast television (excepting HDR-enabled streams) and almost all theatrical projection use SDR specs in their final delivery. The 100-nit peak luminance corresponds to the cathode-ray tube reference brightness of the broadcast television era, intentionally low to suit dim viewing environments. SDR's 8-bit encoding (with optional 10-bit for higher-end broadcast) provides about 6-7 stops of usable dynamic range before clipping or crushing, far below the 13-14 stops modern cinema cameras can capture. Color grading SDR requires aggressive tonal compression of camera log data — bright highlights (windows, lights) typically clip or roll off, deep shadows compress. SDR remains the safe deliverable for content that needs to play anywhere, and most HDR-mastered productions ship an SDR 'trim' alongside the HDR master for SDR-only viewers. SDR is not deprecated and will coexist with HDR formats for years to come. Reference: ITU-R BT.709-6, ITU-R BT.1886.

Image, DeliveryColoristMastering EngineerColor Grading, Delivery

## Related terms

[HDR (High Dynamic Range)](https://postproduction.studio/en/glossary/hdr-high-dynamic-range)[Nit](https://postproduction.studio/en/glossary/nit)[Rec.709](https://postproduction.studio/en/glossary/rec-709)

Peak luminance targets (logarithmic scale). Most consumer HDR displays cap around 1000-2000 nits today.

## Articles covering this term

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* [Dolby Vision Mastering in DaVinci Resolve: The Complete Workflow

  Master the complete Dolby Vision workflow in DaVinci Resolve: dynamic metadata, iCMU analysis, artistic trims, XML export, and three-step quality control.](https://postproduction.studio/en/image/dolby-vision-mastering-resolve)
* [Reference monitors: OLED, LCD, HDR

  Technical guide to reference monitoring displays. OLED, LCD, HDR evaluation, calibration standards, viewing environments, and professional display technologies.](https://postproduction.studio/en/tools/monitoring-displays)
* [Color Spaces: Rec.709, Rec.2020, P3, sRGB

  Deep dive into color spaces, gamuts, primaries, white points, and color science. Master Rec.709, DCI-P3, Rec.2020, and ACES for professional workflows.](https://postproduction.studio/en/image/color-spaces)
* [Ambient Light and Perception: Gamma, PQ, HLG, and Dolby Vision IQ

  How ambient light affects perceived contrast. A complete guide to Gamma, HDR PQ, HLG, Dolby Vision IQ, and their implications for post-production.](https://postproduction.studio/en/image/ambient-light-gamma-hdr)
* [ACES: End-to-End Color Workflow System

  Master ACES color workflow: AP0/AP1 spaces, IDT/RRT/ODT transforms, ACEScg/ACEScct, VFX integration, HDR workflows, and implementation best practices.](https://postproduction.studio/en/image/aces-workflow)