Correcting The Brightness And Contrast Automatically (Auto Lighting Optimizer); Take The Picture - Canon EOS-1DX Instruction Manual

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Correcting the Brightness and Contrast Automatically
If the image comes out dark or the contrast is low, the brightness and
contrast can be corrected automatically. This function is called Auto
Lighting Optimizer. The default setting is [Standard]. With JPEG
images, the correction is applied when the image is captured.
If [z2: Highlight tone priority] is set to [Enable], the Auto Lighting
Optimizer will be set automatically to [Disable] and the setting cannot be
changed.
Depending on the shooting conditions, noise may increase.
If a setting other than [Disable] is set and you use exposure
compensation or flash exposure compensation to darken the exposure,
the image may still come out bright. If you want a darker exposure, set
this function to [Disable].
If multiple exposure shooting (p.186) is set, the Auto Lighting Optimizer
will be set automatically to [Disable]. When the multiple exposure
shooting is canceled, the Auto Lighting Optimizer will revert to the
original setting.
In step 2, if you press the <B> button and uncheck <X> the [Disable
during man expo] setting, the Auto Lighting Optimizer can be set in the
<a> mode.
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1
Select [Auto Lighting Optimizer].
Under the [z2] tab, select [Auto
Lighting Optimizer], then press
<0>.
2 Select the setting.
Turn the <5> dial to select the
desired setting, then press <0>.
3

Take the picture.

The image will be recorded with the
brightness and contrast corrected if
necessary.