Helpful Information:

Solution:

Support:
Free AF accuracy checks and adjustments will be provided to affected products. To have your product repaired, please contact one of our authorized service facilities. They will provide you all details regarding shipment and repair procedure.


Supplementary information:
Based on the comments and suggestions of professional photographers, we have also created supplementary AI Servo AF information (AI Servo Auto Focus Manual) for users to fully utilize the AF capacity of the cameras. Please refer to this information when you shoot with the EOS-1D Mark III and EOS-1Ds Mark III cameras.

Firmware Update
Firmware that further specifies error indications based on the details of detected errors is now available.  The error indications are specified based on the causes of errors so that adequate support can be provided to customers.

For details about the specified error indications and procedures to download the firmware, please go to the following Web sites: 
 

• EOS-1D Mark III - Firmware update version 1.2.5.

• EOS-1Ds Mark III - Firmware update version 1.1.4.

The above information, together with the provision of free AF accuracy checks and adjustments, allow users to utilize the AF function of the EOS-1D Mark III and EOS-1Ds Mark III with greater assurance. 

We offer our sincerest apologies to customers using these products who have been inconvenienced by this issue. Canon always strives to provide the highest quality products to our customers, and we spare no effort in our quality management to make sure our customers can use our products with confidence. We hope our efforts will earn your understanding.