Due to the lens characteristics, the four corners of the picture might look darker. This is called lens light fall-off or drop in peripheral illumination. This can be corrected. For JPEG images, lens light fall-off is corrected when the image is captured. For RAW images, it can be corrected with Digital Photo Professional (provided software). The default setting is [Enable].

1 Select [Peripheral illumin. correct.]. Under the [] tab, select [Peripheral illumin. correct.], then press <>. 2 Set the correction setting. On the screen, check that the attached lens' [Correction data available] is displayed. If [Correction data not available] is displayed, see "About the Lens Correction Data" on the next page. Turn the <> dial to select [Enable], then press <>. 3 Take the picture. The image will be recorded with the corrected peripheral illumination.

About the Lens Correction Data

The camera already contains lens peripheral light correction data for about 25 lenses. In step 2, if you select [Enable], the peripheral light correction will be applied automatically for any lens whose correction data has been registered in the camera.

With the EOS Utility (provided software), you can check which lenses have their correction data registered in the camera. You can also register the correction data for unregistered lenses. For details, see the note below.

• For JPEG images already captured, lens peripheral light correction cannot be applied.
• Depending on shooting conditions, noise might appear on the image periphery.
• When using a third-party lens, setting the correction to [Disable] is recommended, even if [Correction data available] is displayed.
• Lens peripheral light correction is applied even when an Extender is attached.
• If the correction data for the attached lens has not been registered to the camera, the result will be the same as when the correction is set to [Disable].
• The correction amount applied will be slightly lower than the maximum correction amount settable with Digital Photo Professional (provided software).
• If the lens does not have distance information, the correction amount will be lower.
• The higher the ISO speed, the lower the correction amount will be.

Note: How to Edit the lens list in the camera. Connect camera to the computer and allow EOS Utility to come up. Select the Camera settings and remote shooting function. Select the Red camera Icon on the screen and select Lens Peripheral Illumination Once the list has populated, select the lenses you wish to include and then click OK. This will update the camera's lens list.