Making Corrections - Canon EOS 20Da Instruction Manual

Making Corrections

You can make corrections to any of the four aberrations as below, either
one at a time or simultaneously.
Peripheral illumination
Distortions
Chromatic aberration (color fringing which occurs in the periphery of
an image)
Color blur (blue or red color blur which sometimes occurs at the edge
of the highlighted area of an image)
1
In the tool palette, select the [NR/Lens/ALO] tab
sheet.
2 Click the [Tune] button.
The [Lens aberration correction] window appears.
3 Checkmark the items to be corrected.
The image is corrected and redisplayed.
Check the results of corrections to peripheral illumination or
distortions in the full view.
Check the results of corrections to chromatic aberration and color
blur by clicking the area on the image you want to check. In the
top right of the window, the area is displayed at 200% in the
enlargement display section (p.121).
You can lessen the degree of correction by moving the slider to
the left for the item you want to correct.
You can respectively correct red chromatic aberration with the [R]
slider of the [Chromatic aberration] or blue chromatic aberration
with the [B] slider.
When the list box for selecting an extender is displayed, select
the extender attached at the time of shooting from the list box.
4 Click the [OK] button.
The [Lens aberration correction] window closes and the result of
the corrections is applied to the image in the edit window and the
image is redisplayed.
The result of the settings of the [Lens aberration correction]
window is also displayed in the tool palette.
In the main window, the [
indicate the lens aberration corrections (p.112).
] mark is displayed on the image to
Introduction
Contents at
a Glance
1
Basic
Operation
2
Advanced
Operation
Advanced 3
Image Editing
and Printing
Processing 4
Large Numbers
of Images
Editing
5
JPEG/TIFF
Images
Reference
Index
65