FX6 log footage converted to rec 709 issue

[jamesg15414133]

Hi All,

yesterday started to experimenting a suddently conversion of my FX6 log footage to rec 709 without requesting it, I havent swicht on the button that allow the log footage to be converted to 709, I was on the latest 24 pp version , then i though it could be a bug so i ended deleting that version and getting the 25,1 version but still doing it, does anyone knows if this is a new bug or did i accidentaly change something on my setting that i shouldnt? hope that make sense,

the reason why this is annoying is cos mess with my work flow as I'm already have a color profile that i like so I applied my color in adjustment layer above the log footage but cannot doing it now as the log already have a color that i havent requested.

[R Neil Haugen]

You have Auto Tonemapping selected. Therefore, that tells Premiere to map to the sequence if it recognizes the media.

I have no clue why you want native log view, so I would be interested in why ... do you pass log through?

[Fergus H]

@jamesg15414133 the settings you've got in the Lumetri > Settings panel are correct,  if you want to use a workflow where you apply a LUT to flat, log footage. 

I would suggest trying a couple of things: 

1. Try that same file in another project. 

2. Test with a different FX6 file. (I'm currently travelling and don't have access to our usual test file library, so I tested with this FX6 file I found via a Google search: https://filmplusgear.com/fx6-test-1)

3. Reset your Media Cache by holding down the shift key, then launching Premere Pro. 

Let me know what you find out!

@R Neil Haugen Auto Tone Map Media should not affect whether a clip appears as log. It's for ensuring that footage that's in a wider color space than the working color space will still look good. 

Regards,

Fergus

[IanB_360]

Updating status.

[jamesg15414133]

@R Neil Haugen as @Fergus H mentioned Auto tone mapping should not effect my log footage,

I want to see the log footage in premiere pro and be able to use my own rec 709 converstion and not an automatic rec 709 coversion from premiere as for some reason the one from premiere mess with my luts and final color grading ,plus my current work flow help me to achieve better colors and the work flow for my productions.

Thanks for the input

[jamesg15414133]

@Fergus H Thanks for the suggested options, I tried in another new project with different log footage and Istill getting an automatically rec 709 applied to my log footage, I've also use Davinci just to see what my footage looks there and i was able to see a flat log footage in Davinci allowing me to add my preset colours and rec 709 conversion.

Will try to reset my media cache tomorrow and will let you know

Thanks for the input, please let me know if you have found further options to try.

[jamesg15414133]

@IanB_360 @Fergus H Unfortunately no luck by resetting the media cache or the suggested steps, attached you can see to snaps , one with the image enabling the Auto Detect log video clor space and the other one disabling the Auto detect log video but as you can see the 2 images are absolutely the same not changes there.

Please let me know if you have further suggestion at what could it be.

Thanks

[Fergus H]

@jamesg15414133 Thanks for the follow-up; I appreciate you getting back to me. I'll reach out to you via email and let's find a time to chat on a video call. 

Regards,

Fergus

[Mattie P.]

Premiere Pro 25.1.0 (Build 73)

Windows 10.0.19045 Build 19045

NVIDIA Studio Driver 566.36 (GEFORCE RTX 3080)

Ryzen 9 5950X

This is my first export since updating to PP2025. Exporting a basic string of selects for client. Shot on Sony FX6, UHD XAVC-I at 59.94. Sequence settings match that. I have an adjustment layer for basic color grade. Here is the problem:

1. Ctrl-M to export active sequence

2. Export dialogue opens.

3. The frame in the Export Source monitor is suddenly glowing with highlights way blown out. Completely different from the active frame in the Program Monitor. This effect is applied to the export.

4. Disable the Effects tab/button and the strange glowing effect goes away and all is normal. There are, however, no boxes checked under the Effects dropdown.

5. Expected result: The Effects tab is active by default. I have never had it apply an effect in previous versions of Premiere. Actual result: Now it is applying an effect, despite no checked boxes and it still being on by default.

Here is the frame grab from the Program Monitor:

And here is the exact same frame in the Export dialogue having touched no settings:

[Mattie P.]

UPDATE: The freaking effect is applied to the export even when I disable the Effects button! It goes away in the Export preview window, but is there in the finished export. What the heck, I can't send this to a client?!?!

[IanB_360]

Hi @Mattie P. 

That camera may be exporting the color management from metadata ? The Effects tab also includes Lumetri Look/LUT. When you check mark that do you see a LUT being applied at all? Also if you have no Adjustment layer applied and export do you notice any difference ? Thank you

Ian

[Mattie P.]

Hi @ian thanks so much for the quick reply.

There is no LUT selected in the Effects dropdown of the Export dialogue if I activate Lumetri Look/LUT.

I have found that if I export with no adjustment layer, no color adjustment whatsover, i.e. a straight up Log sequence, the export is accurate and true. If I apply Sony's standard SGamut3CineSLog3_to_LC-709 LUT to an adjustment layer and export that, there is a huge Gamma change in the resulting export. I am viewing that export in VLC, and also importing it back into the project.

Now I am seeing that when I open that export in the Source Monitor, this gamma shift persists. But when I drop it into the sequence, directly over the source media that it came from, it is not nearly as bad. So something must be up with the Sequence settings? I am seeing the default Color Space for UHD here is BT2100 HLG, whereas the default color space for HD is 709. I usually set up my sequences with custom settings, but using the defaults today. Could this be the issue? If so, how to ressolve? I've just changed the color space to Rec7709 and exporting now to see if that changes anything.

[R Neil Haugen]

You have a log or HDR clip, and you haven't properly set the color management for your needs. Do that.

Display color management, auto detect log, and auto tonemapping should all be "on". Set the Sequence color space to Rec.709.

That should do it.

[Mattie P.]

Thank you @R Neil Haugen ! I feel pretty embarrassed as I should know this stuff inside and out. But sometimes you have one of those days, and in the end you learn a good lesson!

Setting the color space to Rec709 worked. I'm curious, @R Neil Haugen : I turned on the settings you indicated, but when I activated "auto detect log" the gamma shot up on the Program Monitor. Why would that happen?

[R Neil Haugen]

This has all changed so dramatically in the last few months. How is everyone supposed to just know it? Don't worry about it.

As to that question, I'd need to know a lot more about your setup and what changed.

[IanB_360]

Yes the HDR settings and your color space management setup is very important. If you sent your project file via some type of file share we could take a look at the color setup. But you are close to nailing down the proper settings. @R Neil Haugen has offered some great advice for this. I would check out some color settings forums and if the project does not call for HDR then you can ignore the deeper dive conversations about the settings needed for an HDR project. Let us know if you want us to look at that project file.

Thank you

Ian

[Mattie P.]

Sure, @IanB_360 absolutely! I'll link the project file below.

FWIW, I'm now looking at this doc on Adobe help and while it has some great info, the instructions do not track to my version of Premiere. This really starts around the Configuring Sequence Color Management section almost halfway down. I do not see any Color tabs anywhere that allow me to sest one of those 7 options, or the Output Color Space. Not sure where those settings live.

It's clear to me what was happening was that I was somehow color correcting in a Rec709 color space while outputting a HLG export. I don't quite understand why my Program Monitor was displaying Rec709, however, while my sequence was set to HLG.

Here is the project file. There are only a handful of sequences, and they are all versions of the same thing, made as I was trying to figure out this color issue. Many thanks!!

[Mattie P.]

Agh, sorry here is the Adobe help doc I was referencing.

[R Neil Haugen]

All Premiere Color Management options are on the Lumetri panel Settings tab. The tab NAMED Settings.

This started during the 24.x series. But 24.x builds still don't have the majority of the options that came in with the 25.x builds.

So are you still on 24.x?

[Mattie P.]

That's where I'm looking, yes, and I'm looking at both 24.x and 25.x just to see if I'm missing something. The article was written in 2024 so figure should be at least relevant to 24.x.

I'm particularly not seeing where to set Output Color Space or select Wide Gamut sequence color. Is there by chance a setting that would override the sequence or individual clip color settings and display something different in the Program Monitor? That's what I seem to have experienced today.

[R Neil Haugen]

It's all in the Lumetri panel's Settings tab. ALL of the CM controls. Including, in the 25.x builds, the choice of both the sequence setting, which also controls monitor CM, and the option to have a wide-gamut working space feeding under the sequence space.

If you're not seeing that on 25.x, you may have a section not fully twirled down.

[Fergus H]

@jamesg15414133 Thanks for getting on a call today! As we discussed (and I want to share with people here), the issue you were experienced is caused by Sony's Catalyst Prepare Plugin. It is bypassing some of Premiere Pro's color management features and we're discussing this with Sony. 

In the short term, disabling the plugin is the right solution:

1. Quit Premiere Pro
2. On Mac, go to /Library/Application Support/Adobe/Common/Plug-ins/7.0/MediaCore/. On Winodws, go to C:\Program Files\Adobe\Common\Plug-Ins\7.0\MediaCore\
3. Delete the folder “catalyst_prepare_plugin”

Regards,

Fergus

[IanB_360]

matthewp769633155 I am merging you with a post that seems to be the answer to what's going on with your footage as well.

It appears to be the Sony's Catalyst Prepare Plugin that is causing this.

Thank you

Ian

[Mattie P.]

OK... @IanB_360  can you confirm this is happening even without using Catalyst? I have it installed on this system, but at no point did I open it while handling this footage. In fact, I don't think I've opened it since installing PP2025!

[Fergus H]

@Mattie P. You don't need to be using the plugin for it to potentially cause an issue; it just needs to be installed. 

The easy way to test whether a plugin is effecting your workflow is to disable it. You can do that by holding down the shift key, then launching Premiere Pro. Chec the last option - to disable plugins - then try your project again. 

Regards,

Fergus

[Mattie P.]

Hi @Fergus H and @IanB_360 I'm still having this issue having removed the Catalyst plugin completely from my system. This time my process is importing media from both the Sony A7S3 and FX6, right clicking the clip in the Project panel and going to Modify>Color>Override Media Color Space and setting that to Sony S-Log3/S-Gamut3.Cine (what both cameras were set to record). Suddenly that clip turns into awful blown out highlight electric kool aid crap in the source monitor. If I return the setting to Use Media Color Space: Rec 709 then it returns to the flat recorded Log image that I would expect to see with nothing applied to a clip straight out of the camera.

I know you merged my issue with another person's but I'm not sure whether it is the same issue or not. Either way, it still persists. Thanks!