Canon EOS-1D X Mark III DSLR Camera (Body Only) User Manual
Page 482
Lens aberr correction
•
Peripheral illum corr (
A phenomenon that makes the image corners look darker due to the lens
characteristics can be corrected. If [
Enable
] is set, the corrected image will be
displayed. If the effect is difficult to discern, magnify the image (
four corners. Less correction is applied than for maximum correction with Digital
Photo Professional (EOS software,
). If the effects of correction are not apparent,
use Digital Photo Professional to apply the peripheral illumination correction.
•
Distortion correction
Image distortion due to lens characteristics can be corrected. If [
Enable
] is set, the
corrected image will be displayed. The image periphery will be trimmed in the
corrected image.
Since the image resolution may look slightly lower, adjust the sharpness with the
Picture Style's sharpness parameter setting as necessary.
•
Digital Lens Optimizer
Correct lens aberration, diffraction, and low-pass filter-induced loss of resolution by
applying optical design values. To check the effect of setting this option to [
High
] or
[
Standard
], use magnified view (
). Without magnification, the effect when Digital
Lens Optimizer is set to [
High
] is not applied. Selecting [
High
] or [
Standard
]
corrects both chromatic aberration and diffraction, although these options are not
displayed.
•
Chromatic aberrations (color fringing along the subject's outline) due to the lens
characteristics can be corrected. If [
Enable
] is set, the corrected image will be
displayed. If the effect is difficult to discern, magnify the image (
•
Diffraction correction
The diffraction by the lens aperture degrading the image sharpness can be
corrected. If [
Enable
] is set, the corrected image will be displayed. If the effect is
difficult to discern, magnify the image (
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