Canon EOS 70D Instruction Manual page 108

3 Lens Peripheral Illumination / Chromatic Aberration Correction
Chromatic Aberration Correction
Lens Correction Data
The camera already contains lens peripheral illumination correction
data and chromatic aberration correction data for approx. 25 lenses. If
you select [Enable], the peripheral illumination correction and
chromatic aberration correction will be applied automatically for any
lens whose correction data is registered in the camera.
With EOS Utility (provided software), you can check which lenses have
their correction data registered in the camera. You can also register the
correction data for unregistered lenses. For details, refer to the EOS
Utility Instruction Manual (p.157) on the Software Instruction Manual
CD-ROM.
108
1
Select the setting.
Check that [Correction data
available] is displayed for the
attached lens.
Select [Chromatic aberration], then
press <0>.
Select [Enable], then press <0>.
If [Correction data not available] is
displayed, see "Lens Correction Data"
below.
2
Take the picture.
The image will be recorded with the
chromatic aberration corrected.