Canon EOS 77D, Instruction Manual

Page: 179 / 502

179
Peripheral light fall-off is a phenomenon that makes the image corners
look darker due to the optical characteristics of the lens. Color fringing
along subject outlines is called chromatic aberration. Image distortion
due to optical characteristics of the lens is called distortion. And
decreased image sharpness due to the aperture is called diffraction
phenomenon. These lens aberrations can be corrected.
By default, [
Peripheral illum corr ], [ Chromatic aberr corr ], and
[ Diffraction correction ] are set to [ Enable ], and [ Distortion
correction ] is set to [ Disable ].
If the lens correction data is registered (saved) in the camera,
peripheral illumination correction, chromatic aberration correction, and
diffraction correction will be applied even in Basic Zone modes.
If the setting screen displays [
Correction data not available ] or the
[
F
] icon, it means that the correction data for the respective lens is not
registered in the camera. See “Lens Correction Data” on page 183.
1
Select [Lens aberration
correction].

Under the [
z
1 ] tab, select [ Lens
aberration correction ], then press
<
0
>.
2
Select [Peripheral illum corr].
3
Correction of Lens Aberrations due to
Optical Characteristics
N
Peripheral Illumination Correction