Shooting information display, Histogram, Highlight alert – Canon EOS Rebel XT User Manual

Page 108

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108

Histogram

A histogram is a graph indicating the image’s
brightness distribution. The horizontal axis indicates
the brightness level (darker on the left and brighter on
the right), while the vertical axis indicates how many
pixels exist for each brightness level.
The more pixels there are toward the left, the darker
the image. And the more pixels there are toward the
right, the brighter the image.
If there are too many pixels on the left, the shadow
detail will be lost. And if there are too many pixels on
the right, the highlight detail will be lost. The tones in-
between will be reproduced.
With the image’s histogram, you can check how
accurate or lopsided the exposure is and how rich the overall tonal range is.

Highlight Alert

When the shooting information is displayed, any overexposed areas of
the image will blink. To obtain more image detail in the overexposed
areas, set the exposure compensation to a negative amount and shoot
again.

Shooting Information Display

File No.
Histogram

Color space

Shooting mode

Metering mode

ISO speed

WB correction
White balance

Shooting time

Image

Flash exposure

compensation amount

Shooting date

Aperture

Image protect

Shutter speed

Images recorded/

Total images recorded

Image-recording quality

Exposure compensation amount

Monochrome

Sample Histograms

Dark image

Normal image

Bright image

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