Firmware Version 1.5.0 incorporates the following enhancements and fixes:
1. Adds support for the Software Development Assistance Kit (EDSDK/CCAPI).2. The following issues have been fixed.
2-1. Fixes an issue that may cause the camera, in rare instances, to experience a delayed restart after the camera has gone into Auto Power Off.
2-2. Fixes an issue that, under specific circumstances and in rare instances, may prevent the image from being displayed in the viewfinder or on the screen causing the camera to stop operating, or Error Code 70 may be displayed.
2-3. Fixes an issue that may result in Error Code 70 being displayed when the user is shooting in A+ Mode or with the camera set to AI Focus AF.
2-4. Fixes an issue that may cause the card access lamp to start flashing and the camera to not operate normally when shooting small subjects.
2-5. Fixes an issue that may cause the camera to continue shooting when the user presses the shutter button and another button at the same time.
The firmware can be downloaded at www.canon.co.uk/support/consumer/products/cameras/eos/