Canon EOS 90D DSLR Camera with 18-135mm Lens - Manual (Page 369)

369
RAW Image Processing
 [ ] Chromatic aberration correction ( = 209)
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 eff ect is diffi cult to discern,
magnify the image ( = 336).
 [ ] Diff raction correction ( = 209)
The diff raction by the lens aperture degrading the image sharpness
can be corrected. If
[Enable]
is set, the corrected image will be
displayed. If the eff ect is diffi cult to discern, magnify the image
( = 336).
o Processing RAW images in the camera will not produce exactly the same
results as processing RAW images with Digital Photo Professional (EOS
software).
o If you perform [Brightness adjustment] , noise, banding, etc. may be
intensifi ed with the eff ects of adjustment.
o When [Digital Lens Optimizer] is set, noise may be intensifi ed together with
the eff ects of correction. Image edges may also be emphasized. Adjust Picture
Style sharpness or set [Digital Lens Optimizer] to [Disable] , as needed.
o The eff ect of the lens aberration correction varies depending on the lens used
and shooting conditions. Also, the eff ect may be diffi cult to discern depending
on the lens used, shooting conditions, etc.