Here’s proof that Sony Picture Profiles do have an effect the data stored in your raw files

Mar 5, 2019

John Aldred

John Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter – and occasional beta tester – of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

Here’s proof that Sony Picture Profiles do have an effect the data stored in your raw files

Mar 5, 2019

John Aldred

John Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter – and occasional beta tester – of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

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It’s long been thought that when shooting raw, we can basically just ignore the in-camera processing settings. They’re only used if you’re shooting jpg or video, anyway, right? At least, that’s what everybody’s thought for years. Because for the most part it’s been true.

It turns out, though, that on Sony cameras, certain picture profiles do actually change the data that’s saved into your raw files. And in this video, Gerald Undone proves it.

For those hybrid shooters who use Sony cameras for both stills and video, it’s quite common to bounce between Slog-2, Slog-3, Cine, HLG, etc. on a regular basis. And often, we’ll think nothing of grabbing a quick still image while the camera’s set up for shooting video. As long as we’re happy with the ISO the camera might force us to use (I’m looking at you, Sony A7II!), then it’s all good, in theory, because we’ve always been led to believe that this kind of stuff doesn’t actually have an effect on our raw files.

But as Gerald demonstrates in the video above, it does indeed have an effect on the gamma curve of the raw file. He first noticed the issue when testing the Sony A6400, images were just different when using different Picture Profiles, despite everything else being exactly the same. He also tested the theory on the Sony A7III. This is different from what Sony calls “Creative Styles”, which do indeed do not change the data in the raw file.

I’m not even going to try to break down exactly what’s happening, especially when Gerald goes through it with real examples in the video above, because I’ll just screw it up. I don’t shoot Sony often enough for this to be an issue for me. And when I do shoot Sony, I’m only using them for video anyway.

But if you shoot Sony regularly for most of your work, then you’ll definitely want to watch the video, even if you’ve not experienced the oddness yet yourself. That way, if it ever does happen, you’ll have some idea of why, and how to fix it.

Have you experienced this issue when shooting Sony?

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John Aldred

John Aldred

John Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter – and occasional beta tester – of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

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One response to “Here’s proof that Sony Picture Profiles do have an effect the data stored in your raw files”

  1. Pierre Lagarde Avatar
    Pierre Lagarde

    I may be wrong but wouldn’t it be much more likely that the real iso value is changed for this gamma setting variation and the iso value recorded in the EXIF data is not the one that is really, actually and exactly used by the camera.
    I saw some comparable issues with EOS M6 or even 6D (so Canon cameras) even while nothing looks changed in the scene and EXIF data settings shown in Lightroom are exactly the same, simply because of unpredictable variations in exposure calculation and rounded ISO value being written to metadata not giving the actual ISO value used by the camera. Don’t forget the map is not the territory.
    The iso given in EXIF data is very dependant to manufacturer’s algorithm too and, very often, different from what would be a “real” ISO measure, so why wouldn’t it be varying depending on some settings in the camera as it is for some scene conditions ?
    I don’t say it’s not an issue though, I just try to give it a more simple explanation (to me) than the “gamma changes the way the raw is developed” or encoded. To my sense, it more likely changes the calculation of the exact real iso value while shooting.