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Can you Evaluate Exposure Using the In-camera Histogram?

shot 2649 with and without WB

They say that "a histogram is a graphical representation of the pixels exposed in your image" or "when judging exposure, the primary areas of the histogram to be concerned with are the right and left edges".

We are going to demonstrate the following:

  • In-camera histograms don't really allow one to analyze the shadows and highlights zones of an image.
  • An in-camera histogram changes significantly with changes in the camera settings such as contrast, picture style, brightness, etc.

So, no. By no means can the in-camera histogram be used by a RAW shooter to evaluate exposure.

RawDigger 1.2.23

RawDigger 1.2.22

What's new:

  • Camera support added:
  • Canon G1 X Mark III, EOS M10
  • Panasonic DC-G9 (only standard compressed raws, high-res mode is not supported yet)
  • PhaseOne IQ3 100Mp Trichromatic
  • Sony A7R-III, DSC-RX0
  • Preferences - Display Options - Display RGB render in RAW colors replaced with new option Preferences - Display Options - Camera color profile

FastRawViewer 1.4 Release

Main points:

  • The sorting and filtration of files in folders has been significantly extended
  • Touchscreen support
  • File tree editing - add/create/rename
  • Drag-drop files into other applications
  • Drag-drop into the folder tree (as well as Favorite folders)
  • XMP processing has been expanded and improved
  • EXIF is now always displayed in Grid mode (without any user actions)
  • Over- and Underexposure display has been improved

Color is a Slippery Trickster

Origina ARW from SONY a6500: embedded JPEG vs. render using correct camera profile

“How do you know, when you think blue — when you say blue — that you are talking about the same blue as anyone else?"

Christopher Moore, Sacre Bleu: A Comedy d'Art

The goals of this article are twofold: the first is to demonstrate that out-of-camera JPEGs, including in-camera previews, can’t be implicitly, with no checking, used to evaluate color (as we already know, the in-camera histogram is misleading, too). The second is to show that it isn’t necessary that the camera manufacturer-recommended converter be specifically tuned to match the out-of-camera JPEG.

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