If you have an M1 or M2 Macbook Pro, or an external HDR display, this guide is for you.
Broaden Range
Low Peak SDR Brightness = HDR Headroom
This is counter intuitive, but HDR displays look best a low brightness, or more specifically, a low SDR whitepoint. In other words, a white webpage should NOT be burning your eyes, it should look like a piece of paper on your desk.
The difference between the peak white in SDR and the peak white in HDR is what makes HDR beautiful.
When done correctly, this will NOT diminish your peak HDR whitepoint
To Broaden:
- Mac:
- Lower your OS brightness to 50% - for external displays, this requires MacOS Sequoia [Fall 2024]
- Windows
- go to System Settings / Display / HDR and lower the “SDR Brightness”
Calibration
To Test:
- Enable Experimental Features
- Chrome: chrome://flags/#enable-experimental-web-platform-features
- MS Edge: edge://flags/#enable-experimental-web-platform-features
- Go to the Headroom Test here and try for 2 stops: Greg Benz HDR
Sharing
- Instagram/Threads is rolling out support
- Youtube has support
- Facebook has support if the content was from Instagram/Threads
- Gain JPGs have limited support
- AVIFs are most widely supported
Example HDR Content
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