# Arri Prores data/video levels

**URL:** <https://forum.logik.tv/t/arri-prores-data-video-levels/1713>\
**Category:** Flame Questions\
**Created:** [December 1, 2020, 8:18pm UTC](https://forum.logik.tv/t/arri-prores-data-video-levels/1713 "2020-12-01T20:18:19Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![finnjaeger](https://avatars.discourse-cdn.com/v4/letter/f/e99b99/32.png) [@finnjaeger](https://forum.logik.tv/u/finnjaeger)\
**Post date:** [December 1, 2020, 8:18pm UTC](https://forum.logik.tv/t/arri-prores-data-video-levels/1713/1 "2020-12-01T20:18:19Z")

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I have two conflicting pieces of information on the full vs video range in prores444 LogC from the alexa

flame Knowledge base says I should turn on YUV headroom so interpret the prores as full range,

Resolve on the other hand defaults to video range since about version 11 or so I think.

I red some stuff and prores seems to “always” be video range ycbcr, never seen anyone turn on full range in resolve,

So which is it?

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**Author:** ![ChrisKasten](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/chriskasten/32/150_2.png) [@ChrisKasten](https://forum.logik.tv/u/ChrisKasten)\
**Post date:** [December 1, 2020, 8:56pm UTC](https://forum.logik.tv/t/arri-prores-data-video-levels/1713/2 "2020-12-01T20:56:39Z")

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I’m also a bit confused about autodesks knowledge base about that.  
Actually baselight also use video levels for arri prores.  
Since where are using a BLG workflow, where sources are used parallel in grading and online I need to disable YUV Headroom to match Baselight’s interpretation.

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**Author:** ![ChrisKasten](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/chriskasten/32/150_2.png) [@ChrisKasten](https://forum.logik.tv/u/ChrisKasten)\
**Post date:** [December 1, 2020, 8:58pm UTC](https://forum.logik.tv/t/arri-prores-data-video-levels/1713/3 "2020-12-01T20:58:18Z")

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Unfortunately I can’t find usable information from ARRI’s website as well.

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**Author:** ![finnjaeger](https://avatars.discourse-cdn.com/v4/letter/f/e99b99/32.png) [@finnjaeger](https://forum.logik.tv/u/finnjaeger)\
**Post date:** [December 1, 2020, 9:02pm UTC](https://forum.logik.tv/t/arri-prores-data-video-levels/1713/4 "2020-12-01T21:02:36Z")

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yea all the links I find on other forums are dead, as their official dailies workflow for resolve does not mention levels I assume Video Levels to be correct.

Thanks for letting me know what Baselight is doing 🙂

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**Author:** ![andy\_dill](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/andy_dill/32/15475_2.png) [@andy\_dill](https://forum.logik.tv/u/andy_dill)\
**Post date:** [December 1, 2020, 9:13pm UTC](https://forum.logik.tv/t/arri-prores-data-video-levels/1713/5 "2020-12-01T21:13:53Z")

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Would comparing versions of the [Arri test footage](https://www.arri.com/en/learn-help/learn-help-camera-system/camera-sample-footage) be useful in sorting this? They don’t seem to have shot the SAME shot with ArriRaw and Prores, but they do have media from the same shoots.

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**Author:** ![finnjaeger](https://avatars.discourse-cdn.com/v4/letter/f/e99b99/32.png) [@finnjaeger](https://forum.logik.tv/u/finnjaeger)\
**Post date:** [December 1, 2020, 9:48pm UTC](https://forum.logik.tv/t/arri-prores-data-video-levels/1713/6 "2020-12-01T21:48:27Z")

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can you link me to the same shots for arriraw and prores? to me it always looks like different shots but there are quiet a few of them 😃 Ideally we would. have a totally black and totally white frame from the alexa then we would pretty much know.