Possible issues and resolutions If you have multiple memory cards, initialize another memory card and take some test shots. If images can be played back normally, the card that shows the error message may be malfunctioning. Try reformatting the faulty memory card to solve the issue.
Learn how to use the Digital Lens Optimizer feature in Digital Photo Professional version 4.x which allows you to use lens data to correct diffraction errors in your images.
Even if the previous version of the software is installed, install the software by following the steps below (the current software will overwrite the previous version). If errors occur during installation, please see the 'Related information' section at the end of the page.
Check the operating system and display resolution Non-supported OS - Check for operating system updates. Although Canon supports most software releases for Windows, Mac, and Linux platforms, it is possible you need to install an update.
