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In Photoshop CC 2018, working in 32-bit mode, if I set the Info window to display RGB values using 32-bit (0-1), it only shows three decimal places of precision, which means there are only 1000 possible values displayed. But a 32-bit file can contain over 4 trillion values, so how can I see more decimal points? For example, if I draw a gradient with a very small range of gray, then as I drag my cursor over it, watching the info window, I see coarse steps, and it does not accurately display the value of each pixel.

I realize that I could switch it to 16-bit values, so then it will show 32768 values, which is better, but still not enough.

enter image description here

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    Photoshop has coded in hard display limits for decimal points.
    – Stegathesaurus
    Jun 27, 2018 at 20:30
  • As per Adobe Photoshop CC 2018, there are four decimal places: i.stack.imgur.com/lZpHd.png
    – 0x2b3bfa0
    Jun 27, 2018 at 21:50
  • Even if this comment is not fully related to the question, GIMP 2.10 can display 32 bit color with 6 decimal places through the pointer dockable dialog.
    – 0x2b3bfa0
    Jun 27, 2018 at 21:53
  • @Helio how did you get that image? I just added a screenshot to show my display in CC2018 Mac. Nice to know GIMP can do it, thanks.
    – Elliott B
    Jun 28, 2018 at 0:26
  • @ElliottB: sorry, I didn't understood that you were using the Info window.
    – 0x2b3bfa0
    Jun 28, 2018 at 9:39

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Adobe Photoshop seems to have a hardcoded format for the number of decimal places shown in the Info dialog. You can get an extra digit of precision by using the color picker window.

Color Picker Info

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