Author Topic: Apple's Quicktime Gamma shift / NCLC colour tags.  (Read 144 times)

timbytheriver

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Apple's Quicktime Gamma shift / NCLC colour tags.
« on: October 26, 2020, 11:34:09 AM »
If you've ever battled with the Apple 'QuickTime Gamma shift mystery', then the following links should be required reading (and watching). This is peculiar to Apple devices, but should make informative reading for all involved in colour pipelines.

Short answer in first post here: https://forum.blackmagicdesign.com/viewtopic.php?f=21&t=101253

Resolve 16.2 latest solutions described first post here: https://forum.blackmagicdesign.com/viewtopic.php?f=21&t=114047

Excellent video explanation here:

Summary: Our rendered files must include the correct colour tags for other apps to do correct display transforms and so avoid the gamma shift peculiar to Apple display devices.

The tags in question are visible in the 'Get Info' dialogue. More detailed info can be accessed by installing https://mediaarea.net/en/MediaInfo

Resolve 16.2 now has a way to accurately tag exported files for display consistency (see the extensive Blackmagic Forum thread).
5D3 1.1.3
5D2 2.1.2