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Color management issue with Sony Slog3 files

New Here ,
Apr 23, 2024 Apr 23, 2024

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[Edit from moderator: this post was originally a reply to another post. It has been moved here to its own thread and the subject name changed]

 

Hello,

 

I've the same problem with the Sony Slog3 on .mp4 files:

all my files from my Sony FX3 (shoted in log) appears with a "lut applied / wrong color space".

I recorded the same files on my Ninja V and the files are flat as I want, in the correct color space.

 

I'm working on an Intel MacbookPro from 2019.

 

The thing I noticed is that for the "Sony clips", Premiere says "no color management'. For the ninja or the drone clips, it says "corresponding color space".

Of course, any tick on "auto detect" or anything does not change anything.

 

The weired thing is that it works, with teh same clips and the same version of PP on a friend Macbook Pro.

 

So maybe the problem come from my macbook...

 

Thanks for your help

 

IMG_3125.jpgIMG_3126.jpgIMG_3127.jpgIMG_3128.jpg

 

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LEGEND ,
Apr 23, 2024 Apr 23, 2024

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Simply trying to understand what you want ... I think what you are asking, is you want to see the flat, log-looking, non-normalized image?

 

If so ... why? Just out of curiousity.

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New Here ,
Apr 23, 2024 Apr 23, 2024

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Sorry if my English is bad.

 

i want flat image to have the latitude to color grade it, with the purposed wrong color space of PP I cannot do anything, highlights are dead...

 

and all the "color space" at the bottom of lumetri is greyed out. 

as you can see on attached pics, PP says "no color management", that's the main problem
ticking "auto detect log" doesn't change anything on my image ON MY MACbookpro. My friend doesn't have this issue on his PP/MacBook

 

thanks!

 

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Explorer ,
Apr 30, 2024 Apr 30, 2024

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I haven't even written my response to this post, but I already regret it because I know that no one will have anything of value to say that will actually help -but here it goes anyway. 

 

I've been in this situation at least 10 times over the last year to 18 months where: 

I shoot the entire project in SONY Slog3/ S-gamut3.cine at 4K/24fps

Import the footage. 

Override the color space to SonyS-LOG3/ S-gamut3.cine

Highlights are completely blown out, so I apply Tone Mapping (by channel). 

(at some point over the last 18 months, this SUDDENLY worked and my footage looked GREAT)

NOW.. again. I'm having the SAME issue where the footage looks like complete GARBAGE. 

Regardless of how much I adjust the Tonemapping exposure, the highlights are still BLOWN OUT and the image is insanely OVER SATURAED. 

So... I swap the color space back to Rec709 and apply a QT Gamma Compensation curve LUT to the footage and WOW -the blown out highlights are gone and the image is no longer oversatured and noisey -BUT -the colors are incredibly FLAT. 

Staring at exports from BOTH settings -trying to choose whether: 

1) I do this the "correct" way by overriding the color space back to SONY S-Log3/ S-gamut3.cine and pull the tonemapping exposure WAY down

-or- 

2) Do this the "incorrect" way and keep the Rec709 media color space, add the LUT -and just force myself to deliver unimpressive, desaturated footage. 

 

Oh. I shoot at night. So I'm always shooting with 12800 ISO between F1.4 and F4. 

 

My footage has looked great for a number of months over the last 18 months -and suddenly, I'm back to this MESS again. 

 

I cannot express how INSANELY frustrated and annoyed I am at this point. I've said it a lot over the last year, but I've held out "hope" that Adobe would stop with the BS, but they refuse. I'm sick of paying the money for a product that is UNRELIABLE and rarely works as advertised. This is the LAST chance I'm giving Adobe before I completely switch to Resolve. I'm sure I'll have problems with that software too -especially since I am not a professional colorist, but if I can get a CONSISTENT LOOK in my video (after shooting consistently the SAME way for years) then I'll be forced to head over there. 

I edit on a M1 max. 64gb RAM. 2TB SSD. 

 

 

EDIT! -

 

Ok. So I believe I've figured out the "workaround" for the issue described above. 

 

1. Use Rec709 media color space. 

2. Apply QT Gamma Compensation curve

3. When exporting, use the "SDR Conform" option in the "Effects" tab in the "Export" screen. 

4. Colors are still a bit flat, but the blacks are saturated and the footage looks 100x better (still not getting the COLORS I want and that I bought my camera SPECIFICALLY FOR.. but at least now, I can deliver this media and not be embarassed). 


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LEGEND ,
Apr 30, 2024 Apr 30, 2024

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@Fergus H  ... this is your bailiwick I believe.

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Adobe Employee ,
Apr 30, 2024 Apr 30, 2024

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@Johnny29957850d8g6 What you're experiecing sounds very frustrating! I'm really sorry. You posted previously with what sounded like a very similar issue. I'm a product manager on the video team and I'm very familar with the area you're talking about. I also regularly shoot on cameras using S-Log. I'm happy to make the same offer I made previously: DM me if you'd like to jump on a call and we can see what's going on for you. 

 

Regards,

Fergus

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Adobe Employee ,
May 01, 2024 May 01, 2024

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Looking forward to hearing about any findings from this case, @Fergus H!

 

Thanks,
Kevin

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