Video LUT L-LUG to rec-709

[Photoworks]

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I have attempted to create a monitor LUT for the Cine4K SL2 Log profile.

take a look..

https://drive.google.com/open?id=1OpVFwagWP8-aDredWL6rjLxTR2dNgEAr

 

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[Aaron Daniel]

Thanks Photoworks!

Do you have any insight on recording L-log to external recorders like the Atomos Ninja V? I'm still unsure of this

Thanks in advance

[Photoworks]

I don't have the Atomos, I have been using the VideoDevices Pix-E.

The Pix E can not do 4k 60p , only up to 30p

But in any case you just hit record on the recorder and go. I have not seen option on the SL2 for a HTML trigger.

I use the LUT to preview the monitor in REC-709 .

I find the LOG to the card to be better dynamic range then the recorder. Better highlights rolloff in camera.

But I am still experimenting how to expose the LOG. It seams that highlights get lost if overexposed, better recover shadows with some noise reduction.

[kai2ser]

Hi -- just wondering if you had any updates on your LUT learnings.  I am looking at both SL2-S camera log and Atmos Ninja V

[Photoworks]

3 hours ago, kai2ser said:

Hi -- just wondering if you had any updates on your LUT learnings.  I am looking at both SL2-S camera log and Atmos Ninja V

I don't have the camera. but Leica provided download link for LUT's.

I don't know how they work, to me they aren't neutral and more like a stylist look.

https://us.leica-camera.com/content/download/196842/5255895/version/1/file/LUTs+Homepage.7z

[BernardC]

On 2/6/2021 at 4:32 AM, kai2ser said:

Hi -- just wondering if you had any updates on your LUT learnings.  I am looking at both SL2-S camera log and Atmos Ninja V

A surprise announcement from Atomos:

"The Ninja V with AtomOS 10.61 will now be capable of monitoring Leica L-log gamma in BT2020 gamut from the Leica SL2S. Updates for other models will be available in future firmware releases."

I presume this means that it will work like many other cameras on Atomos: pick the camera model from a menu and the display is automatically set.

[frame-it]

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On 3/19/2020 at 12:20 PM, Photoworks said:

But I am still experimenting how to expose the LOG. It seams that highlights get lost if overexposed, better recover shadows with some noise reduction.

for shooting in LOG mode, its better to expose for the mid range, not for the highlights

[Slender]

18 hours ago, BernardC said:

A surprise announcement from Atomos:

"The Ninja V with AtomOS 10.61 will now be capable of monitoring Leica L-log gamma in BT2020 gamut from the Leica SL2S. Updates for other models will be available in future firmware releases."

I presume this means that it will work like many other cameras on Atomos: pick the camera model from a menu and the display is automatically set.

That is wonderful! Thanks for sharing! Installed it and going to test it.

Soon I hope we could see ProResRaw too. Even puny Olympuses cameras do it and the Pana S5.

[sebas_]

Just curious! When the Atomos is set to L-Log, would you just set the Monitor to Rec 709 to monitor correct colors or would you still upload the LUTs provided by Leica?

[Slender]

I used the leica luts. They look quite nice.

[BernardC]

15 hours ago, sebas_ said:

Just curious! When the Atomos is set to L-Log, would you just set the Monitor to Rec 709 to monitor correct colors or would you still upload the LUTs provided by Leica?

You can do it in several ways, but I would use the Atomos-provided LUT on the recorder to preview your images, and then upload the Leica-supplied LUTs to your editing software.

It bears repeating for those who don't know, the monitor LUT is just there to help you assess your images. The recorder saves the L-log data straight to disk, bypassing the viewing LUT.

This means that you also need to apply a LUT in your video editor (or make your own LUT-like corrections if you want). The LUT is only a starting point for colour correction. It's been designed by Leica and/or Atomos to provide accurate colour and contrast, based on your camera settings (ISO and colour temp, mostly). Where you go from there is up-to you.

[sebas_]

Hello Bernard!

thanks for your answer! 
I have just heard back from Atomos they suggest to use the provided LUT from Leica while monitoring. 
so that’s was I’m using now to monitor while recording and later apply the lut in the editing suite. 
Works perfectly  

Am 17.2.2021 um 14:30 schrieb BernardC:

You can do it in several ways, but I would use the Atomos-provided LUT on the recorder to preview your images, and then upload the Leica-supplied LUTs to your editing software.

It bears repeating for those who don't know, the monitor LUT is just there to help you assess your images. The recorder saves the L-log data straight to disk, bypassing the viewing LUT.

This means that you also need to apply a LUT in your video editor (or make your own LUT-like corrections if you want). The LUT is only a starting point for colour correction. It's been designed by Leica and/or Atomos to provide accurate colour and contrast, based on your camera settings (ISO and colour temp, mostly). Where you go from there is up-to you.