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I have ILCE-7m3 camera. I operate it in manual mode (M) and fixed ISO (except auto focus (AF)) and target file format is RAW.

Recently I discovered Picture Profile tab in camera settings. By default it is turned off. Once Picture Profile is activated by selecting one - a few Drive Modes for expanding dynamic range (DR) are grayed out:

  • Cont Bracket
  • Single Bracket

I am puzzled with this limitation.

Cont/Single Bracket is just a macro scenario for shooting a series of photos, with different exposure, automatically.

I can shoot all of them manually.

Another follow up question is what gamma is used when Picture Profile is off?

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The picture profiles are intended for recording video; it would be very odd to bracket frames in the middle of a video. So while you can use the picture profiles for still images; it's assumed the camera will be being used for video at least some of the time, and those modes are disabled.

A raw file does not use a gamma profile perse. A gamma curve is applied during the demosaicing (display) process, but it can be changed w/o affecting the original raw data. Typically, raw files are displayed with a 2.2 gamma curve applied. E.g. Lightroom's Melissa color space, used for displaying/editing images, is ProPhoto with 2.2 gamma.

If you are recording jpeg images w/ the picture profiles disabled they are recorded w/ gamma 2.2.

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  • I use picture profiles for still images all the time.
    – Bob Macaroni McStevens
    Dec 9, 2022 at 15:54
  • @BobMacaroniMcStevens, on Sonys the picture profile (movies) is different from the creative style (stills)... helpguide.sony.net/ilc/1720/v1/en/contents/TP0001661955.html
    – Steven Kersting
    Dec 9, 2022 at 17:42
  • The OP describes using the camera for stills.
    – Bob Macaroni McStevens
    Dec 9, 2022 at 18:58
  • @StevenKersting doesn't mean people wouldn't want to use the "movie" picture profiles for still film simulations, given they offer more detailed settings than creative styles.
    – rackandboneman
    Dec 9, 2022 at 19:50
  • @rackandboneman, that's fine; but that is still the reason why exposure (DR) bracketing is disabled when a picture profile is selected... It is assumed the camera will be being used for shooting movies as that is what the picture profiles are designed/intended for.
    – Steven Kersting
    Dec 9, 2022 at 21:39

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