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3 Correction of Lens Aberrations due to Optical CharacteristicsN
General Cautions for Lens Aberration Correction
Peripheral illumination correction, chromatic aberration correction,
distortion correction, and diffraction correction cannot be applied to
JPEG images already taken.
When using a non-Canon lens, setting the corrections to [Disable] is
recommended even if [Correction data available] is displayed.
The correction amount will be less (except for diffraction correction) if the
lens used does not have distance information.
General Notes for Lens Aberration Correction
The effect of the lens aberration correction varies depending on the lens
used and shooting conditions. Also, the effect may be difficult to discern
depending on the lens used, shooting conditions, etc.
If the effect of the correction is not visible, magnify the image after
shooting and check it again.
Corrections can be applied even when an extender or life-size converter
is attached.
If the correction data for the attached lens is not registered to the
camera, the result will be the same as when the correction is set to
[Disable] (except for diffraction correction).
In Basic Zone modes, peripheral illumination correction, chromatic
aberration correction, and diffraction correction will be applied
automatically. Distortion correction will be applied automatically only in
the <q> mode.
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