Ricoh R8 - Manual (Page 63)

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When Histogram is on, a histogram
appears in the lower right corner on the
picture display. A histogram is a graph
indicating the number of pixels on the
vertical axis and the brightness on the
horizontal axis (from left to right,
shadows (dark areas), midtones, and
highlights (bright areas)).
By using the histogram, you can determine the brightness of an
image without being affected by the brightness around the picture
display. This also helps you correct for areas that are overly bright
or dark.
If the histogram has only peaks on the
right side, this picture is overexposed
with too many pixels only for highlight
sections.
If the histogram has only peaks on the
left side without anything else, this
picture is underexposed with too many
pixels only for shadow sections. Refer
to this histogram when correcting the
exposure.
Note ---------------------------------------------------------------------------------------------------
• The histogram displayed on the picture display is for reference only.
• After taking a picture, you can correct its brightness and contrast by making
adjustments to the histogram. (GP.115)
• Depending on the shooting conditions (use of the flash, dark surrounding light, etc.),
the exposure level indicated in the histogram may not correspond to the brightness
of the shot image.
• Exposure compensation has its limitation. It does not necessarily achieve the best
possible result.
• A histogram with peaks in the center may not necessarily provide the best result to
suit your particular requirements.
For example, an adjustment is required if you want to underexpose or overexpose
the image.
• For information on how to correct the exposure compensation, see P.92.
Histogram