Correcting Lens Aberration
You can easily make corrections to drops in peripheral illumination, distortions in the subject, and color blur which occur by the physical characteristics of the lens or slightly remaining aberration. Please note that you can only correct RAW images which have been taken with the compatible cameras and lenses. JPEG or TIFF images cannot be corrected.
You can also correct RAW images taken with the compatible lens even when the extender is attached.
You can also correct RAW images shot with EF 50mm f/2.5 Compact Macro fitted with Life Size Converter EF.
The aberration correction function is not available for images shot with combinations of camera/lens other than those given under "Compatible Cameras" and "Compatible Lenses" in the "Digital Photo Professional Instruction Manual" (PDF electronic manual). They are therefore not displayed and cannot be used.
The lens aberration correction function is not available for multiple-exposure RAW images created on the camera.
EF cinema lenses (CN-E lenses) are not compatible.
Making Corrections
You can make corrections to any of the four aberrations as below, either one at a time or simultaneously.
- Peripheral illumination
- 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)
- Distortions
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Select the [Lens] tab sheet from the tool palette in the edit window or edit image window.
Click the [Tune] button.
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The [Lens aberration correction] window appears.
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Checkmark the items to be corrected.
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The image is corrected and redisplayed.
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Check the results of corrections to peripheral illumination or distortions in the full view.
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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.
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You can lessen the degree of correction by moving the slider to the left for the item you want to correct.
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You can respectively correct red chromatic aberration with the [R] slider of the [Chromatic aberration] or blue chromatic aberration with the [B] slider.
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To correct distortion aberration of images shot with a fisheye lens (EF 8-15mm f/4L USM Fisheye or EF 15mm f/2.8 Fisheye), four effects can be selected from the [Effect] list box in addition to [Shot settings] normally used for distortion correction. The level of an effect can be adjusted with the adjustment slider located below [Distortion]. For detailed information on each effect, refer to the "Digital Photo Professional Instruction Manual" (PDF electronic manual).
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For images shot with EF 8-15mm f/4L USM Fisheye, a fine-tune slider is also displayed when you select [Emphasize Linearity] from the [Effect] list box. Adjust the amount of correction for distortion aberration with the adjustment slider, and then adjust with the fine-tune slider if more adjustment is required.
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When the list box for selecting an extender is displayed, select the extender attached at the time of shooting from the list box.
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Click the [OK] button.
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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.
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The result of the settings of the [Lens aberration correction] window is also displayed in the tool palette.
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In the main window, the [
] mark is displayed on the image to indicate the lens aberration corrections.
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Lens Tool Palette
| [Digital Lens Optimizer] | Digital Lens Optimizer |
| [Lens aberration correction] | Lens aberration correction |
Lens Aberration Correction Window
| [Reset] | Reverts to the condition when the image was shot. |
| [Shooting distance information] | Shooting distance information slider* |
| [Peripheral illumination] | Peripheral illumination correction |
| [Distortion] | Distortion correction |
| [Chromatic aberration] | Chromatic aberration correction |
| [R] | Corrects red chromatic aberration. |
| [B] | Corrects blue chromatic aberration. |
| [Color blur] | Color blur correction |
| [Navigator] | Shows/hides position of enlargement display section. |
| [Grid] | Grid display |
| [OK] | Applies the settings and closes the window. |
| [Cancel] | Cancels all settings and closes the window. |
*For RAW images shot with MP-E 65mm f/2.8 1-5x Macro Photo or EF 50mm f/2.5 Compact Macro with Life Size Converter EF, the slider indicator changes to the zoom magnification.
About Shooting Distance Information Slider
- When correcting RAW images shot with the cameras in the table below, if shooting distance information has been saved to the image, the slider is set automatically according to this shooting distance information. However, if no shooting distance information is saved to the image, the slider is set automatically to the right end at infinity position and a [<!>] appears above the slider. If the image's shooting distance is not infinite, you can minutely adjust the distance by operating the slider while looking at the screen.
EOS-1D X EOS-1D C EOS-1D Mark IV EOS-1Ds Mark III EOS-1D Mark III EOS 5D Mark III EOS 5D Mark II EOS 6D EOS 7D EOS 70D EOS 60D EOS 50D EOS 40D EOS REBEL T5i/700D EOS REBEL SL1/100D EOS REBEL T4i/650D EOS REBEL T3i/600D EOS REBEL T2i/550D EOS REBEL T1i/500D EOS DIGITAL REBEL XSi/450D EOS REBEL T3/1100D EOS DIGITAL REBEL XS/1000D EOS M2 EOS M - When correcting RAW images shot with the cameras in the table below, it is set automatically to the right end at infinity position. You can then minutely adjust the distance by operating the slider while looking at the screen if the shooting distance is not infinite.
EOS-1D Mark II N EOS-1Ds Mark II EOS-1D Mark II EOS-1Ds EOS-1D EOS 5D EOS 30D EOS DIGITAL REBEL XTi/400D DIGITAL ―
- For RAW images shot with MP-E 65mm f/2.8 1-5x Macro Photo or EF 50mm f/2.5 Compact Macro with Life Size Converter EF, the slider indicator changes to [Magnification factor].
- [Shooting distance information] slider is applied to all the correction items with check marks.
Correcting Multiple Images at a Time
Select multiple images to correct in the main window. Display tool palette by clicking the [Tool] button in the toolbar. If you perform correction procedures when tool palette is displayed, you can apply the same corrections to all the images selected in the main window. Also, you can apply same corrections by copying the recipe of the corrected image and pasting it onto the multiple images. (Applying Adjustment Contents to Other Images)
- Some noise appeared in the periphery of an image after correcting [Peripheral illumination]
- You can reduce the noise by using luminance and/or chromatic noise reduction of the noise reduction function. However, if you had applied high amount of correction to the images that have been shot at night or with a high ISO speed, the noise might not be reduced.
- The image appears with less resolution after correcting [Distortion]
- You can make the image similar to the one before correction by applying more sharpness with the sharpness adjusting function.
- The colors of the image became weaker after correcting [Color blur]
- You can make the image similar to the one before correction by adjusting the color tone and/or the color saturation to make the color deeper.
- The result of [Color blur] correction cannot be detected
- [Color blur] correction is effective for correcting blue or red color blur which occurs at the edge of the highlighted area of an image. If conditions do not match, correction cannot be made.