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kubak32700890
Participant
February 11, 2017
Answered

Importing ARW files from Sony A7s2 in Sony Slog3

  • February 11, 2017
  • 3 replies
  • 14102 views

Hi good people!!!

I have been fiddling with this for quite some time but still can't find the proper workflow.

I mainly shoot video but from time to time I like to take a picture. And it's usually a ARW file from my Sony A7S2 camera and I shoot in Sony Slog3.

Now, when importing these files into Lightroom the program automatically converts the log into a more contrasty curve. Something like I would do in a editing program say converting the log into rec709. How to avoid this automatic gamma conversion in Lightroom? Can anyone please tell me? I would like to start my developing process with the Slog3 settings. How can this be done? Thank you in advance. Have a great day.

This topic has been closed for replies.
Correct answer johnrellis

LR doesn't support SLog3 or any other log encoding applied to stills. You'll have to turn off the log encoding when taking a still.  Perhaps setting presets on your camera for SLog and no SLog might make that easier.

3 replies

eugenioc9384865
eugenioc9384865
Participant
March 22, 2023

Hey man.. 6 years later and im making the same mistake (or misfortune i must say) you ve made once.. and cant find a solution. I really need this pictures, and need the raw look i saw on camera.. have you found a solution?

delfosseb
delfosseb
Participant
April 5, 2023

Hi everyone, I'm having the same issue.
I don't understand why on raw still files a such treatment is made by adobe lightrrom. It is supposed to be raw information so why picture profile set on sony cameras (such as slog) is affecting raw pictures shown in Lightroom ?
My problem is that I'm shooting mostly video (in slog to keep as much dynamic as possible) and sometimes I do shoot some still pictures. I don't want to change picture profile each time I switch between video and stills to avoid forgetting to switch back to slog when I shoot video.
My question is : Is there a way to display raw pictures shot with sony slog picture profile with no modification in Adobe Lightroom classic ? Thank you very much.

Rob_Cullen
Community Expert
Rob_CullenCommunity Expert
Community Expert
April 5, 2023

"I don't understand why on raw still files a such treatment is made by adobe lightrrom."

That would be a question for Adobe. (We are mostly other community users here, like you.)

https://helpx.adobe.com/lightroom-classic/help/supported-file-formats.html

 

 

Regards. My System: Windows-11, Lightroom-Classic 15.1.1, Photoshop 27.3.1, ACR 18.1.1, Lightroom 9.0, Lr-iOS 10.4.0, Bridge 16.0.2 .
J
Community Expert
Jao vdLCommunity Expert
Community Expert
February 12, 2017

Slog encoding for video is meant to make the relatively low bit depth video files retain more editing latitude. There is no point doing this for raw files as they always are linearly encoded and always have the maximum editing latitude possible as it has the direct sensor data and is not in any way treated. In fact a raw file has far more editing latitude than a Slog encoded video file or jpeg. Lightroom has the camera rendering profiles "Camera Clear, Camera Deep, Camera Landscape, Camera Light, Camera Neutral, Camera Portrait, Camera Standard, and Camera Vivid" built in for this camera. These mimic the rendering settings in camera. So if you select one of those in the camera and then select the same in the calibration setting in Develop, your image will look the same as the jpeg preview in camera. Camera Neutral is probably the one that you want to use to get low contrast. Just set this as the develop default for your camera. You do this by taking an unedited raw file in Develop. Scroll down to the calibration section and in "profile" choose camera Neutral. Then hold your option key and the reset button will change into "Set Default ..". Hit this and the default for newly imported files and files that you reset will now render using that profile.

    johnrellis
    johnrellisCorrect answer
    Legend
    February 12, 2017

    LR doesn't support SLog3 or any other log encoding applied to stills. You'll have to turn off the log encoding when taking a still.  Perhaps setting presets on your camera for SLog and no SLog might make that easier.

      K
      kubak32700890Author
      Participant
      February 12, 2017

      Thank you very much John! That helps a lot. So no log there in LR.

      I am tempted to ask: would you recommend some settings for the camera to reflect the LR in raw mode the most?

      I will do some experimenting and maybe post the results here. Also: do you know any other software that would work in the log curve in the raw format? Thank you so much for your advice once again. Very useful help!

      johnrellis
      johnrellis
      Legend
      February 12, 2017

      In general, there isn't any advantage to using log encoding with raw stills.  Log formats are designed to capture a larger dynamic range than traditional Rec 709 and sRGB, without increasing the amount of data storage. Raw formats capture the full dynamic range of the camera but at the expense of using much more data storage.  Once you've decided to use raw, you won't get any more dynamic range by also using log encoding.

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