Sony a7R III, Help Manual

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Histogram display
A histogram shows the luminance distribution, displaying how many pixels there are by luminance. It shows darker
toward the left and brighter toward the right.
The histogram changes depending on the exposure compensation.
A peak at the right or left end of the histogram indicates that the image has an overexposed or underexposed area,
respectively. You cannot correct such defects using a computer after shooting. Perform exposure compensation before
shooting as necessary.
(A) : Pixel count
(B) : Brightness
Note
The viewfinder display and the monitor display for shooting can be set separately. Look through the viewfinder to set the display
settings for the viewfinder.
The information in the histogram display does not indicate the final photograph. It is information about image displayed on the
screen. The final result depends on the aperture value, etc.
The histogram display is extremely different between shooting and playback in the following cases:
When the flash is used
When shooting a low luminance subject such as a night scene
In movie mode, [For viewfinder] cannot be displayed.
Hint
The following are not displayed in the default settings.
Graphic Display
Monitor Off
Display All Info. (when using the viewfinder)
To change the display modes that are switched when you press the DISP button, select MENU → (Camera Settings2) →
[DISP Button] and change the setting.
Related Topic
If the image has an overexposed or underexposed area, the corresponding section will blink on the histogram
display (overexposed/underexposed warning).
The settings for playback are also applied in [Auto Review].
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