Difference between "Histogram" and the histogram in "Levels"

Bernard Cuzzillo

• March 08, 2017 02:49

The help says "the Exposure Evaluation Histogram will stay as originally captured, as it refers to the raw file." But this is plainly not true (or it refers to a different histogram--would it be so hard to put some better screenshots in Help?) since the "Histogram" histogram (the top one in the Exposure tool tab) changes with adjustment of anything in that tab. So then what is the difference between the "Histogram" histogram at the top and the "Levels" histogram lower down, below High Dynamic Range?

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  HansB

  • March 08, 2017 08:23

  I've had a look at the help page in your link. It states:
  

  ...
  Exposure Evaluation (in the Capture Tool Tab) displays a histogram of the latest captured raw file.
  ...

  
  It sounds like you are on the 'Exposure' tab, not the 'Capture' tab, because the 'Capture' tab has no 'Levels' and you refer to it as 'Histogram', not 'Exposure Evaluation'. The 'Exposure Evaluation' histogram on the 'Capture' tab is a tethered capturing tool.
  
  There are differences in the 'Histogram' histogram of the 'Exposure' tab and the 'Levels' histogram.
  You can select single color channels in 'Levels', you can cut off shadows and highlights, limit the lights and shadows, and move the gamma point. The top histogram will show the result of all this.
  
  
  Regards,
  Hans

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  Emmanuel Mellet

  • March 08, 2017 18:07

  In addition the top histogram is affected by the output profile (useful for softproofing)
  Emmanuel

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