Canon EOS-1D C - Manual (Page 155)

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Peripheral light fall-off occurs in lenses whose characteristics make the
image corners look darker. Color fringing along subject outlines is
another chromatic aberration. Both lens aberrations can be corrected.
The default setting is [Enable] for both corrections.
1
Select [Lens aberration
correction].
Under the [z1] tab, select [Lens
aberration correction], then press
<0>.
2
Select the setting.
Check that [Correction data
available] is displayed for the
attached lens.
Turn the <5> dial to select
[Peripheral illumin.], then press
<0>.
Select [Enable], then press <0>.
If [Correction data not available] is
displayed, see “About the Lens
Correction Data” on page 157.
3
Take the picture.
The image will be recorded with the
peripheral illumination corrected.
3
Lens Peripheral Illumination / Chromatic Aberration Correction
Peripheral Illumination Correction
Depending on shooting conditions, noise may appear on the image
periphery.
The correction amount applied will be slightly lower than the maximum
correction amount settable with Digital Photo Professional (provided
software, p.410).
The higher the ISO speed, the lower the correction amount will be.
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