Canon EOS 60D - Manual (Page 228)

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R Processing RAW Images with the CameraN
Chromatic aberration correction
When [Enable] is set, lateral chromatic aberration caused by the
lens is corrected. If [Enable] is set, the corrected image will be
displayed. (The image periphery will also be slightly cropped.) If the
effect is difficult to discern, press the <u> button to magnify the
image. (Press the <I> button to return to the normal view.) The
chromatic aberration correction done with the camera will be less
pronounced than with Digital Photo Professional (provided
software). Therefore the correction might not be so noticeable. In
such a case, use Digital Photo Professional to correct the chromatic
aberration. Chromatic aberration refers to the inaccurate
convergence of colors along the fringes of a subject.
The result of RAW image processed in the camera and RAW image
processed with Digital Photo Professional does not match exactly.
Even if image verification data (p.260) is appended to the RAW image,
the image verification data is not appended to the JPEG image after
processing.
About peripheral illumination correction, distortion
correction, and chromatic aberration correction
To execute peripheral illumination correction, distortion correction, and
chromatic aberration correction with the camera, the data of the lens used
for the shot must be registered in the camera. If the lens data has not been
registered in the camera, use EOS Utility (provided software) to register the
lens data.