Leica DFC Series Manual page 18

of that tonal density. A well-illuminated image should
contain all components from dark to light.
Default luminosity histogram showing values for
black/white levels (0,100) and gamma (0.60).
Separate histograms for red, green and blue channels
are available.
eg, green channel histogram:
Combined histogram showing red, green and blue
channels:
How the histogram is displayed, and what contrast
values are visible and applied are available by right-
clicking in the histogram area. Check/uncheck the
required settings.
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Leica DFC Cameras – Image Acquisition Guide